INVACARE CORP
SC 14D1/A, 1997-04-04
ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES
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<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                AMENDMENT NO. 9
                                       TO
                                 SCHEDULE 14D-1
                             TENDER OFFER STATEMENT
     (PURSUANT TO SECTION 14(D)(1) OF THE SECURITIES EXCHANGE ACT OF 1934)
 
                         HEALTHDYNE TECHNOLOGIES, INC.
                           (Name of Subject Company)
 
                                  I.H.H. CORP.
                              INVACARE CORPORATION
                                   (Bidders)
 
                            ------------------------
 
                    COMMON STOCK, PAR VALUE $0.01 PER SHARE
                         (Title of Class of Securities)
 
                                    18139610
                     (CUSIP Number of Class of Securities)
 
                            ------------------------
 
                            THOMAS R. MIKLICH, ESQ.
  CHIEF FINANCIAL OFFICER, GENERAL COUNSEL, TREASURER AND CORPORATE SECRETARY
                              INVACARE CORPORATION
                              899 CLEVELAND STREET
                               ELYRIA, OHIO 44035
 
                           TELEPHONE: (216) 329-6000
                 (Name, Address and Telephone Number of Person
     Authorized to Receive Notices and Communications on Behalf of Bidders)
 
                            ------------------------
 
                                    COPY TO:
                             ROBERT E. SPATT, ESQ.
                           SIMPSON THACHER & BARTLETT
                              425 LEXINGTON AVENUE
                         NEW YORK, NEW YORK 10017-3954
                           TELEPHONE: (212) 455-2000
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
    This Amendment No. 9 amends and supplements the Tender Offer Statement on
Schedule 14D-1 filed on January 27, 1997 (as amended, the Schedule 14D-1)
relating to the offer by I.H.H. Corp., a Delaware corporation (the "Purchaser")
and a wholly owned subsidiary of Invacare Corporation, an Ohio corporation (the
"Parent"), to purchase all of the outstanding shares of Common Stock, par value
$0.01 per share (the "Shares"), of Healthdyne Technologies, Inc., a Georgia
corporation (the "Company"), and (unless and until the Purchaser declares that
the Rights Condition as defined in the Offer to Purchase referred to below is
satisfied) the associated Preferred Stock Purchase Rights (the "Rights") issued
pursuant to the Rights Agreement, dated as of May 22, 1995, as amended, between
the Company and SunTrust Bank, Atlanta (formerly Trust Company Bank), as Rights
Agent, at a purchase price of $13.50 per Share (and associated Right), net to
the seller in cash, without interest thereon, upon the terms and subject to the
conditions set forth in the Offer to Purchase dated January 27, 1997 (the "Offer
to Purchase"), as amended and supplemented by the Supplement thereto dated April
4, 1997 (the "Supplement"), a copy of which Supplement is attached hereto as
Exhibit (a)(18), and in the revised Letter of Transmittal, a copy of which is
attached hereto as Exhibit (a)(19) (which, together with any other amendments or
supplements thereto, constitute the "Offer").
 
    The Schedule 14D-1 is hereby amended and supplemented as follows:
 
ITEM 1. SECURITY AND SUBJECT COMPANY.
 
    (b) The information set forth in the Introduction (the "Introduction") of
the Supplement is incorporated herein by reference.
 
    (c) The information set forth in Section 3 ("Price Range of Shares;
Dividends") of the Supplement Purchase is incorporated herein by reference.
 
ITEM 2. IDENTITY AND BACKGROUND.
 
    (c)-(d) The information set forth in Schedule I to the Supplement is
incorporated herein by reference.
 
ITEM 3. PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH THE SUBJECT COMPANY.
 
    (a)-(b) The information set forth in the Introduction, Section 5 ("Certain
Information Concerning the Purchaser and the Parent") and Section 7 ("Background
of the Offer; Contacts with the Company") of the Supplement is incorporated
herein by reference.
 
ITEM 4. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.
 
    (a)-(b) The information set forth in Section 6 ("Source and Amount of
Funds") of the Supplement is incorporated herein by reference.
 
ITEM 5. PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF THE BIDDER.
 
    (a)-(c) The information set forth in the Introduction, Section 7
("Background of the Offer; Contacts with the Company") and Section 8 ("Purpose
of the Offer; the Merger; Plans for the Company") of the Supplement is
incorporated herein by reference.
 
ITEM 6. INTEREST IN SECURITIES OF THE SUBJECT COMPANY.
 
    (a) The information set forth in the Introduction and Section 5 ("Certain
Information Concerning the Purchaser and the Parent") of the Supplement is
incorporated herein by reference.
 
                                       2
<PAGE>
ITEM 7. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
  THE SUBJECT COMPANY'S SECURITIES.
 
    The information set forth in the Introduction, Section 5 ("Certain
Information Concerning the Purchaser and the Parent"), Section 7 ("Background of
the Offer; Contacts with the Company") and Section 8 ("Purpose of the Offer, the
Merger; Plans for the Company") of the Supplement is incorporated herein by
reference.
 
ITEM 9. FINANCIAL STATEMENTS OF CERTAIN BIDDERS.
 
    The information set forth in Section 5 ("Certain Information Concerning the
Purchaser and the Parent") of the Supplement is incorporated herein by
reference.
 
ITEM 10. ADDITIONAL INFORMATION.
 
    (b)-(c) The information set forth in Section 11 ("Certain Legal Matters and
Regulatory Approvals") of the Supplement is incorporated herein by reference.
 
    (e) The information set forth in Section 7 ("Background of the Offer;
Contacts with the Company") and Section 11 ("Certain Legal Matters and
Regulatory Approvals") of the Supplement is incorporated herein by reference.
 
    (f) The information set forth in the Supplement and the revised Letter of
Transmittal is incorporated herein by reference.
 
ITEM 11.  MATERIAL TO BE FILED AS EXHIBITS.
 
<TABLE>
<S>           <C>
(a)(17)       Letter dated April 4, 1997 from A. Malachi Mixon, III, Chairman and CEO
              of the Parent, to Company Shareholders.
 
(a)(18)       Supplement to Offer to Purchase dated April 4, 1997.
 
(a)(19)       Revised Letter of Transmittal.
 
(a)(20)       Revised Notice of Guaranteed Delivery.
 
(a)(21)       Revised Letter from the Dealer Manager to Brokers, Dealers, Commercial
              Banks, Trust Companies and Nominees.
 
(a)(22)       Revised Letter to clients for use by Brokers, Dealers, Commercial Banks,
              Trust Companies and Nominees.
 
(a)(23)       Guidelines for Certification of Taxpayer Identification Number on
              Substitute Form W-9.
 
(b)(2)        Loan Agreement, dated as of February 27, 1997, by and among the Parent,
              the several banks and other financial institutions from time to time
              parties thereto, NBD Bank, as Agent for the lenders, and KeyBank National
              Association, as Co-Agent for the lenders.
</TABLE>
 
                                       3
<PAGE>
                                   SIGNATURE
 
    After due inquiry and to the best of my knowledge and belief, I certify that
the information set forth in this Statement is true, complete and correct.
 
                                INVACARE CORPORATION
 
                                By:            /s/ THOMAS R. MIKLICH
                                     -----------------------------------------
                                     Name: Thomas R. Miklich
                                     Title:  Chief Financial Officer
 
                                I.H.H. CORP.
 
                                By:            /s/ THOMAS R. MIKLICH
                                     -----------------------------------------
                                     Name: Thomas R. Miklich
                                     Title:  President
 
Date: April 4, 1997
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
  EXHIBIT                                                                                                      PAGE
    NO.                                               DESCRIPTION                                               NO.
- -----------  ----------------------------------------------------------------------------------------------  ---------
<S>          <C>                                                                                             <C>
 
(a)(17)      Letter dated April 4, 1997 from A. Malachi Mixon, III, Chairman and CEO of the Parent, to
             Company Shareholders..........................................................................
 
(a)(18)      Supplement to Offer to Purchase dated April 4, 1997...........................................
 
(a)(19)      Revised Letter of Transmittal.................................................................
 
(a)(20)      Revised Notice of Guaranteed Delivery.........................................................
 
(a)(21)      Revised Letter from the Dealer Manager to Brokers, Dealers, Commercial Banks, Trust Companies
             and Nominees..................................................................................
 
(a)(22)      Revised Letter to clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and
             Nominees......................................................................................
 
(a)(23)      Guidelines for Certification of Taxpayer Identification Number on Substitute Form W-9.........
 
(b)(2)       Loan Agreement, dated as of February 27, 1997 by and among the Parent, the several banks and
             other financial institutions from time to time parties thereto, NBD Bank, as Agent for the
             lenders, and KeyBank National Association, as Co-Agent for the lenders........................
</TABLE>

<PAGE>
                                [INVACARE LOGO]
 
                                                                   April 4, 1997
 
DEAR HEALTHDYNE SHAREHOLDER:
 
    On Monday, March 31, 1997, I.H.H. Corp., our wholly-owned subsidiary,
increased the price in its tender offer for all outstanding shares of common
stock of Healthdyne Technologies, Inc. to $13.50 per share. We have enclosed a
Supplement to the Offer to Purchase and various other documents related to the
revised tender offer. The tender offer has now been extended to 6:00 p.m., New
York City time, on Monday, April 28, 1997, unless further extended.
 
    The Supplement should be read in conjuction with the Offer to Purchase. If
you have not previously received an Offer to Purchase, you can obtain one from
MacKenzie Partners, Inc., the Information Agent in the tender offer, at the
addresses and telephone numbers set forth on the back cover of the Supplement or
from brokers, dealers, commercial banks and trust companies.
 
    Note that if you have already validly tendered shares pursuant to the tender
offer (including by using the original Letter of Transmittal which references a
price of $13 per share) and have not properly withdrawn such shares, you need
not take any further action in order to receive the increased price of $13.50
per share pursuant to the tender offer. If you have not already tendered your
shares, we hope that you will give renewed consideration to the increased tender
offer.
 
    Detailed instructions on procedures for tendering shares are contained in
the enclosed materials and the Offer to Purchase. Questions and requests for
assistance may be directed to MacKenzie Partners at (800) 322-2885 or to Salomon
Brothers Inc., the Dealer Manager for the tender offer, at its address and
telephone number set forth on the back cover of the Supplement.
 
                                           Sincerely,
 
                                           A. MALACHI MIXON, III
                                           CHAIRMAN OF THE BOARD &
                                           CHIEF EXECUTIVE OFFICER

<PAGE>
      SUPPLEMENT TO THE OFFER TO PURCHASE FOR CASH DATED JANUARY 27, 1997
 
                                  I.H.H. CORP.
                          A WHOLLY OWNED SUBSIDIARY OF
                              INVACARE CORPORATION
 
                    HAS AMENDED ITS TENDER OFFER TO INCREASE
                          THE CASH PURCHASE PRICE FOR
                     ALL OUTSTANDING SHARES OF COMMON STOCK
           (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS)
                                       OF
                         HEALTHDYNE TECHNOLOGIES, INC.
                                       TO
                              $13.50 NET PER SHARE
 
  THE OFFER HAS BEEN EXTENDED. THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
 6:00 P.M., NEW YORK CITY TIME, ON MONDAY, APRIL 28, 1997, UNLESS THE OFFER IS
                               FURTHER EXTENDED.
 
THE OFFER IS SUBJECT TO THE CONDITIONS CONTAINED IN THE OFFER TO PURCHASE.
 
                                   IMPORTANT
 
    Any shareholder desiring to tender all or any portion of such shareholder's
shares of Common Stock, par value $0.01 per share (the "Shares"), and the
associated Preferred Stock Purchase Rights (the "Rights"), of the Company should
either (1) complete and sign the revised Letter of Transmittal delivered
herewith or the Letter of Transmittal previously delivered to such shareholder
by Parent and Purchaser (or any facsimiles of such Letters of Transmittal) in
accordance with the instructions in such Letters of Transmittal, mail or deliver
one of such Letters of Transmittal (or such facsimile thereof) and any other
required documents to the Depositary (as defined herein), and either deliver the
certificates representing the tendered Shares and, if separate, the certificates
representing the associated Rights and any other required documents to the
Depositary or tender such Shares (and Rights, if applicable) pursuant to the
procedure for book-entry transfer set forth in Section 3 of the Offer to
Purchase (as defined herein) as amended and supplemented hereby or (2) request
such shareholder's broker, dealer, commercial bank, trust company or other
nominee to effect the transaction for such shareholder. Shareholders having
Shares (and Rights, if applicable) registered in the name of a broker, dealer,
commercial bank, trust company or other nominee must contact such broker,
dealer, commercial bank, trust company or other nominee if they desire to tender
Shares (and Rights, if applicable) so registered. Unless and until the Purchaser
declares that the Rights Condition (as defined in the Offer to Purchase) is
satisfied, holders of Shares will be required to tender one Right for each Share
tendered in order to effect a valid tender of such Share.
 
    A shareholder who desires to tender Shares and Rights and whose certificates
representing such Shares (and Rights, if applicable) are not immediately
available, or who cannot comply with the procedure for book-entry transfer on a
timely basis, must tender such Shares (and Rights, if applicable) by following
the procedures for guaranteed delivery set forth in Section 3 of the Offer to
Purchase as amended and supplemented hereby.
 
    Shareholders who have previously validly tendered Shares pursuant to the
Offer and not properly withdrawn such Shares have validly tendered such Shares
for purposes of the Offer, as amended, and need not take any further action in
order to receive the increased price of $13.50 net per Share pursuant to the
amended Offer.
 
    Questions and requests for assistance may be directed to Salomon Brothers
Inc, the Dealer Manager, and MacKenzie Partners, Inc., the Information Agent, at
their respective addresses and telephone numbers set forth on the back cover of
this Supplement. Additional copies of the Offer to Purchase, this Supplement,
the revised Letter of Transmittal and the revised Notice of Guaranteed Delivery
may be obtained from the Information Agent or from brokers, dealers, commercial
banks and trust companies.
 
                           --------------------------
 
                      THE DEALER MANAGER FOR THE OFFER IS:
                              SALOMON BROTHERS INC
                                ---------------
 
April 4, 1997
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                                                                                                          <C>
INTRODUCTION...............................................................................................           1
 
THE AMENDED TENDER OFFER...................................................................................           3
     1. Term of the Offer; Expiration Date.................................................................           3
     2. Procedure for Tendering Shares and Rights..........................................................           3
     3. Price Range of Shares; Dividends...................................................................           3
     4. Certain Information Concerning the Company.........................................................           3
     5. Certain Information Concerning the Purchaser and the Parent........................................           5
     6. Source and Amount of Funds.........................................................................           6
     7. Background of the Offer; Contacts with the Company.................................................           6
     8. Purpose of the Offer; the Merger; Plans for the Company............................................          15
     9. Effect of the Offer on the Market for the Shares, Nasdaq Listing and Exchange Act Registration......          16
    10. Certain Conditions of the Offer....................................................................          16
    11. Certain Legal Matters and Regulatory Approvals.....................................................          16
    12. Miscellaneous......................................................................................          16
</TABLE>
 
Schedule I  Directors and Executive Officers of the Purchser and the Parent
 
                                       i
<PAGE>
To: The Shareholders of
    HEALTHDYNE TECHNOLOGIES, INC.
 
                                  INTRODUCTION
 
    The following information amends and supplements the Offer to Purchase dated
January 27, 1997 (the "Offer to Purchase") of I.H.H. Corp. (the "Purchaser"), a
Delaware corporation and a wholly-owned subsidiary of Invacare Corporation, an
Ohio corporation (the "Parent"), pursuant to which the Purchaser is offering to
purchase all of the outstanding shares of Common Stock, par value $0.01 per
share (the "Shares"), of Healthdyne Technologies, Inc., a Georgia corporation
(the "Company"), and (unless and until the Purchaser declares that the Rights
Condition (as defined in the Offer to Purchase) is satisfied) the associated
Preferred Stock Purchase Rights (the "Rights") issued pursuant to the Rights
Agreement, dated as of May 22, 1995, as amended (the "Rights Agreement"),
between the Company and SunTrust Bank, Atlanta (formerly Trust Company Bank), as
Rights Agent (the "Rights Agent"), at an increased purchase price of $13.50 per
Share (and associated Right), net to the seller in cash without interest
thereon, upon the terms and subject to the conditions set forth in the Offer to
Purchase and this Supplement and in the revised Letter of Transmittal (which, as
amended from time to time, together constitute the "Offer"). Unless the context
requires otherwise, all references in this Supplement to Shares shall be deemed
to refer also to the associated Rights, and all references to Rights shall be
deemed to include all benefits that may inure to the shareholders of the Company
or to holders of the Rights pursuant to the Rights Agreement. Based on publicly
available information, the Purchaser believes that one Right is currently
associated with each Share.
 
    THIS SUPPLEMENT SHOULD BE READ IN CONJUNCTION WITH THE OFFER TO PURCHASE.
EXCEPT AS SET FORTH IN THIS SUPPLEMENT AND THE REVISED LETTER OF TRANSMITTAL,
THE TERMS AND CONDITIONS PREVIOUSLY SET FORTH IN THE OFFER TO PURCHASE REMAIN
APPLICABLE IN ALL RESPECTS TO THE OFFER. TERMS USED BUT NOT DEFINED HEREIN HAVE
THE MEANINGS SET FORTH IN THE OFFER TO PURCHASE. ADDITIONAL COPIES OF THE OFFER
TO PURCHASE, THIS SUPPLEMENT, THE REVISED LETTER OF TRANSMITTAL AND THE REVISED
NOTICE OF GUARANTEED DELIVERY MAY BE OBTAINED FROM THE INFORMATION AGENT AT THE
ADDRESS AND TELEPHONE NUMBERS SET FORTH ON THE BACK COVER OF THIS SUPPLEMENT.
 
    The discussion set forth in the Introduction of the Offer to Purchase is
hereby amended and supplemented as follows:
 
    On March 31, 1997 the Parent announced that the Purchaser had increased the
Offer price from $13 (the "Original Offer") to $13.50 per Share, net to the
Seller in cash without interest thereon.
 
    In the Merger, each then outstanding Share (other than Shares held by the
Parent, the Purchaser or any other wholly owned subsidiary of the Parent, Shares
held in the treasury of the Company and Shares held by shareholders who properly
exercise appraisal rights under Georgia law) would be converted into the right
to receive in cash the increased price per Share paid by the Purchaser pursuant
to the amended Offer.
 
    On March 20, 1997, the Parent delivered a notice to the Company pursuant to
the By-Laws (the "Nomination and Proposal Notice") notifying the Company of the
Parent's intent to nominate seven director candidates (the "Nominees") and
propose a set of corporate governance bylaw amendments (the "Proposals") for
consideration by shareholders at the Company's upcoming (but as yet unscheduled)
1997 Annual Meeting of Shareholders (the "Annual Meeting"). Each of the Parent's
nominees are committed to taking all such actions necessary or appropriate
(subject to any fiduciary duties they would have as directors) to approve and
effectuate the consummation of the Offer and the Merger. The proposed amendments
are designed to, among other things: facilitate the change in the Board of
Directors and the consummation of the Offer and the Merger; prevent manipulation
by the current Board of the By-Laws and of the size of the Board to be elected
at the Annual Meeting; allow for
 
                                       1
<PAGE>
special meetings to be called by shareholders owning 10% of the outstanding
Shares; and cause the existing Board to eliminate the "dead-hand pill"
restrictions in the Rights Agreement.
 
    THIS SUPPLEMENT DOES NOT CONSTITUTE A SOLICITATION OF A PROXY, CONSENT OR
AUTHORIZATION FOR OR WITH RESPECT TO THE ANNUAL MEETING OR ANY SPECIAL MEETING
OF THE COMPANY'S SHAREHOLDERS OR ANY ACTION IN LIEU THEREOF. ANY SUCH
SOLICITATION WHICH THE PURCHASER OR THE PARENT MAY MAKE WILL BE MADE ONLY
PURSUANT TO SEPARATE PROXY MATERIALS IN COMPLIANCE WITH THE REQUIREMENTS OF
SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED (THE "EXCHANGE
ACT").
 
    THE MINIMUM CONDITION.  According to the Company's Annual Report on Form
10-K for the fiscal year ended December 31, 1996 (the "1996 10-K"), 12,726,866
shares were outstanding at March 14, 1997 and options covering a total of
approximately 1,782,000 Shares were outstanding under the Company's various
stock option plans at December 31, 1996. The Parent currently beneficially owns
an aggregate of 600,000 Shares (including 100 Shares owned by the Purchaser),
representing approximately 4.7% of the Shares outstanding based on the number of
Shares reported by the Company as outstanding at March 14, 1997. Based on this
information, the Purchaser believes that the Minimum Condition will be satisfied
if approximately 6,799,522 Shares are validly tendered pursuant to the Offer and
not properly withdrawn. However, the Minimum Condition will depend on the facts
as they exist on the date on which Shares are purchased pursuant to the Offer.
 
    THE OFFER TO PURCHASE, THIS SUPPLEMENT AND THE REVISED LETTER OF TRANSMITTAL
CONTAIN IMPORTANT INFORMATION WHICH SHOULD BE READ BEFORE ANY DECISION IS MADE
WITH RESPECT TO THE OFFER.
 
                                       2
<PAGE>
                            THE AMENDED TENDER OFFER
 
    1.  TERM OF THE OFFER; EXPIRATION DATE.  The discussion set forth in Section
1 of the Offer to Purchase is hereby amended and supplemented as follows:
 
    The price to be paid for Shares purchased pursuant to the Offer has been
increased from $13 to $13.50 per Share (and associated Right), net to the seller
in cash without interest thereon, upon the terms and subject to the conditions
of the Offer.
 
    The term "Expiration Date" means 6:00 p.m., New York City time, on Monday,
April 28, 1997, unless and until the Purchaser, in its sole discretion, shall
have extended the period during which the Offer is open, in which event the term
"Expiration Date" shall mean the latest time and date at which the Offer, as so
extended by the Purchaser, shall expire.
 
    The waiting period under the HSR Act expired at 11:59 p.m. New York City
time, on February 14, 1997. Accordingly, the condition of the Offer relating to
the expiration or termination of all waiting periods imposed by the HSR Act has
been satisfied.
 
    2.  PROCEDURE FOR TENDERING SHARES AND RIGHTS.  The discussion set forth in
Section 3 of the Offer to Purchase is hereby amended and supplemented as
follows:
 
    The revised Letter of Transmittal and the revised Notice of Guaranteed
Delivery distributed with this Supplement may be used to tender Shares.
Tendering shareholders may also continue to use the Letter of Transmittal and
the Notice of Guaranteed Delivery previously distributed with the Offer to
Purchase to tender Shares in order to receive the increased price of $13.50 net
per Share pursuant to the Offer.
 
    SHAREHOLDERS WHO HAVE PREVIOUSLY VALIDLY TENDERED SHARES PURSUANT TO THE
OFFER AND NOT PROPERLY WITHDRAWN SUCH SHARES HAVE VALIDLY TENDERED SUCH SHARES
FOR PURPOSES OF THE OFFER, AS AMENDED, AND NEED NOT TAKE ANY FURTHER ACTION IN
ORDER TO RECEIVE THE INCREASED PRICE OF $13.50 NET PER SHARE PURSUANT TO THE
AMENDED OFFER.
 
    3.  PRICE RANGE OF SHARES; DIVIDENDS.  The discussion set forth in Section 6
of the Offer to Purchase is hereby amended and supplemented as follows:
 
    According to publicly available sources, the high and low closing sale
prices per Share (i) for the first quarter of 1997 were $14.75 and $11.20,
respectively and (ii) for the second quarter of 1997 (through April 3, 1997)
were $14.38 and $13.88, respectively. According to publicly available sources,
the Company did not pay any cash dividends during such periods.
 
    On March 31, 1997, the last full trading day prior to the time at which the
Parent announced it was increasing the Offer price from $13 to $13.50 per Share,
the closing sale price per Share reported on the Nasdaq National Market was
$14.08. The Offer represents more than a 52% premium over the $8.88 closing sale
price per Share reported on the Nasdaq National Market on December 31, 1996, the
last full trading day before the Parent delivered its January 2, 1997 letter to
the Company proposing to acquire the Company at a price of $12.50 per Share in
cash. SHAREHOLDERS ARE URGED TO OBTAIN A CURRENT MARKET QUOTATION FOR THE
SHARES.
 
    4.  CERTAIN INFORMATION CONCERNING THE COMPANY.  The discussion set forth in
Section 7 of the Offer to Purchase is hereby amended and supplemented as
follows:
 
                                       3
<PAGE>
    Set forth below are certain selected consolidated financial data for the
Company's three fiscal years ending December 31, 1996 which were derived from
the 1996 10-K. More comprehensive financial information is included in the 1996
10-K (including management's discussion and analysis of financial condition and
results of operations) and other documents filed by the Company with the
Commission, and the following financial data is qualified in its entirety by
reference to such other documents including the financial information and
related notes contained therein. Such other documents may be examined and copies
thereof may be obtained from the offices of the Commission and the Nasdaq Stock
Market in the manner set forth in the Offer to Purchase.
 
                         HEALTHDYNE TECHNOLOGIES, INC.
                      SELECTED CONSOLIDATED FINANCIAL DATA
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<TABLE>
<CAPTION>
                                                                                      FOR THE YEAR ENDED
                                                                                         DECEMBER 31,
                                                                              -----------------------------------
<S>                                                                           <C>          <C>          <C>
                                                                                 1996         1995        1994
                                                                              -----------  -----------  ---------
INCOME STATEMENT DATA
Revenues....................................................................  $   118,318  $   110,494  $  89,012
Operating Earnings..........................................................       11,615       12,209      8,712
Earnings before Income Taxes................................................        9,530       10,389      8,488
Income Tax Expense..........................................................       (3,805)      (4,102)    (3,383)
Net Earnings................................................................        5,725        6,287      5,105
Net Earnings per Common Share...............................................  $      0.44  $      0.50  $    0.41
Weighted Average Number of Common Shares Outstanding for EPS Calculation....       12,919       12,694     12,401
 
<CAPTION>
 
                                                                                        AT DECEMBER 31,
                                                                              -----------------------------------
                                                                                 1996         1995        1994
                                                                              -----------  -----------  ---------
<S>                                                                           <C>          <C>          <C>
BALANCE SHEET DATA
Working Capital.............................................................  $    36,887  $    36,641  $  28,489
Total Assets................................................................       98,078       82,876     69,412
Total Liabilities...........................................................       53,808       45,975     36,377
Total Shareholders' Equity..................................................       44,270       36,901     29,535
</TABLE>
 
    5.  CERTAIN INFORMATION CONCERNING THE PURCHASER AND THE PARENT.  The
discussion set forth in Section 8 of the Offer to Purchase is hereby amended and
supplemented as follows:
 
    Set forth below are certain selected consolidated financial data relating to
the Parent and its subsidiaries for the Parent's three fiscal years ending
December 31, 1996 which were derived from the Parent's Annual Report on Form
10-K for the fiscal year ended December 31, 1996. More comprehensive financial
information is included in such document (including management's discussion and
analysis of financial condition and results of operations) and other documents
filed by the Parent with the Commission, and the following financial data is
qualified in its entirety by reference to such other documents including the
financial information and related notes contained therein. Such other documents
may be examined and copies thereof may be obtained from the offices of the
Commission and the Nasdaq Stock Market in the same manner as set forth with
respect to information about the Company in the Offer to Purchase.
 
                                       4
<PAGE>
                              INVACARE CORPORATION
                      SELECTED CONSOLIDATED FINANCIAL DATA
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                      FOR THE YEAR ENDED
                                                                                         DECEMBER 31,
                                                                             -------------------------------------
<S>                                                                          <C>          <C>          <C>
                                                                                1996         1995         1994
                                                                             -----------  -----------  -----------
INCOME STATEMENT DATA
Net Sales..................................................................  $   619,498  $   504,032  $   411,123
Income from Operations.....................................................       65,393       54,144       43,736
Earnings Before Income Taxes...............................................       63,768       51,845       41,877
Income Taxes...............................................................      (24,850)     (19,680)     (15,500)
Net Earnings...............................................................       38,918       32,165       26,377
Net Earnings per Share.....................................................  $      1.28  $      1.07  $      0.89
Dividends per Common Share.................................................       .05000       .03750       .01875

Weighted Average Number of Shares
  Outstanding for EPS Calculation..........................................       30,393       30,077       29,696

</TABLE>
<TABLE>
<CAPTION>
 
                                                                                             AT DECEMBER 31,
                                                                                   -------------------------------
                                                                                    1996       1995         1994
                                                                                 ---------   ---------   ---------
<S>                                                      <C>        <C>        <C>           <C>         <C>
BALANCE SHEET DATA
Working Capital............................................................    $  160,952    $ 119,749   $ 112,768
Total Assets...............................................................       509,628      408,750     338,109
Total Liabilities..........................................................       271,031      207,431     174,102
Total Shareowners' Equity..................................................       238,597      201,319     164,007
</TABLE>
 
    The Parent currently beneficially owns an aggregate of 600,000 Shares
(including 100 Shares owned by the Purchaser), representing approximately 4.7%
of the 12,726,866 Shares reported by the Company as outstanding at March 14,
1997.
 
    6.  SOURCE AND AMOUNT OF FUNDS.  The discussion set forth in Section 9 of
the Offer to Purchase is hereby amended and supplemented as follows:
 
    The total amount of funds required by the Purchaser to purchase all of the
outstanding Shares (on a fully-diluted basis) and pay related fees and expenses
is expected to be approximately $194 million. The Purchaser will obtain such
funds through capital contributions and/or intercompany loans by the Parent
and/or various wholly-owned direct or indirect subsidiaries of the Parent. The
Parent has in place committed bank facilities sufficient to provide such funds.
However, the Offer is not conditioned on the receipt of financing.
 
    On February 27, 1997, the Parent entered into a definitive Loan Agreement
dated as of February 27, 1997 (the "Loan Agreement"), with NBD Bank ("NBD") as
Agent, KeyBank National Association, as Co-Agent, and the banks named therein
providing for the $200 million Facility on substantially the same terms as those
described in the Commitment Letter, including as set forth below.
 
    Under the Loan Agreement, the Facility will terminate and Loans made
thereunder will mature on the earliest to occur of (i) the second anniversary of
the initial loan thereunder and (ii) October 31, 1999. Proceeds of the Loans may
be used to finance the acquisition of the Company, provided that up to $15
million of Loans may be used for other acquisitions and up to $15 million of
Loans may be used for other general corporate purposes. Loans will bear
interest, at the Parent's option, at NBD's Prime Rate (or, if greater, 1/2% over
the Federal Funds Rate), at specified spreads above LIBOR (adjusted for
reserves) or, in certain cases, at negotiated fixed rates. The Parent's other
credit facilities have been amended to conform generally to the terms of the
Facility in satisfaction of the condition in the Loan Agreement requiring such
amendment.
 
                                       5
<PAGE>
    The foregoing summary of the source and amount of funds is qualified in its
entirety by reference to the text of the Loan Agreement, a copy of which is
filed as an exhibit to the Schedule 14D-1 and is incorporated herein by
reference and may be inspected in the same manner as set forth in Section 7 of
the Offer to Purchase.
 
    7.  BACKGROUND OF THE OFFER; CONTACTS WITH THE COMPANY.
 
    The discussion set forth in Section 10 of the Offer to Purchase is hereby
amended and supplemented as follows:
 
    On January 31, 1997, the Company issued a press release and filed a
Solicitation/ Recommendation Statement on Schedule 14D-9 (the "Schedule 14D-9")
with the Commission, stating the recommendation by the Board of Directors that
shareholders reject the Original Offer and the belief by the Board of Directors
that the best means for providing value to shareholders was for the Company to
pursue its "strategic plan" and not be put up for sale. The Company also stated
in the Schedule 14D-9 that it had received a recommendation by Cowen & Company,
the Company's financial advisor, to the effect that the price offered pursuant
to the Original Offer was "grossly inadequate".
 
    On February 3, 1997, the Company issued a press release announcing its
fourth-quarter earnings information and purporting to "describe in more detail"
the Company's "strategic plan".
 
    On February 13, 1997, Mr. Petit sent a letter to the shareholders again
urging them to reject the Original Offer and put their trust in the Company's
management to execute the "strategic plan". Among other things, Mr. Petit
claimed that the Original Offer was being made at a "bargain price" which was
"more than $1 a share less than the price at which [the Company's] stock was
trading at the time Invacare made its tender offer. . .", but failed to mention
that the trading price he was referring to already reflected the public
announcement of the Parent's interest in an acquisition of the Company.
 
    On February 14, 1997, the waiting period under the HSR Act with respect to
the Offer expired.
 
    On February 25, 1997, the Parent issued the following press release:
 
                  INVACARE CORPORATION ANNOUNCES EXTENSION OF
                    TENDER OFFER FOR HEALTHDYNE TECHNOLOGIES
 
        Elyria, Ohio--(February 25, 1997)--Invacare Corporation announced
    today that its wholly owned subsidiary I.H.H. Corp. has extended its $13
    per share tender offer to purchase all the outstanding shares of common
    stock of Healthdyne Technologies, Inc. until 6:00 p.m., New York City
    time, on Monday, March 24, 1997, unless further extended in the manner
    described in the Offer to Purchase dated January 27, 1997. The offer had
    been scheduled to expire at midnight, New York City time, on Monday,
    February 24, 1997. Through such date approximately 2,018,145 shares of
    Healthdyne common stock had been validly tendered in connection with the
    offer, which, together with the 600,000 shares owned by Invacare,
    constitutes more than 20% of outstanding Healthdyne common stock, based
    on the most recent information provided by Healthdyne.
 
        A. Malachi Mixon, III, Chairman and Chief Executive Officer of
    Invacare, said: "We are pleased at the support we have received so far
    from Healthdyne's shareholders, a number of whom have tendered at this
    preliminary stage despite the fact that Healthdyne has to date refused
    to remove its defensive mechanisms and allow its shareholders a chance
    to take advantage of our offer.
 
        "Our offer represents a more than 45% premium over Healthdyne
    stock's closing price on the trading day before we made our initial
    acquisition proposal. We believe that recent market prices reflect the
    continued existence of our offer, as well as possible speculation that
    an
 
                                       6
<PAGE>
    increased price will ultimately be paid for Healthdyne by us or a third
    party. However, in the more than seven weeks since we made our first
    acquisition proposal to Healthdyne, there has been no indication of any
    other party expressing an interest in the acquisition of Healthdyne
    (which may partly explain the steady decline in the spread of the
    trading price over our offer price). Of course, if Healthdyne should
    decide to conduct discussions with potential acquirors, as we presume
    they have so far failed to do since they have not provided any such
    disclosure in an amendment to their tender offer recommendation, we
    believe that they would be obligated to include us in order to fulfill
    their fiduciary duties to their shareholders.
 
        "As for us, we have stated repeatedly that we would be interested in
    meeting with Healthdyne and would be prepared to discuss our offer
    price, among other things, if Healthdyne's management is able to
    substantiate significant additional values to our satisfaction, but only
    on terms that bring value to the shareholders of both Invacare and
    Healthdyne. We're confident that over time even more shareholders will
    appreciate our offer as the best way to maximize value and will tender
    their shares."
 
    On March 4, 1997, Mr. Reynolds and Mr. Petit sent yet another letter to the
shareholders repeating the information regarding the level of tenders already
provided in the Parent's February 25, 1997 press release, stating that they
"fully expect[ed]" the Parent to continue its attempt to acquire the Company,
advising shareholders that they "may be receiving additional mailings and
telephone calls from Invacare", and repeating previous suggestions that
tendering shareholders withdraw from the Original Offer, among other things.
However, Messrs. Reynolds and Petit also stated in their March 4 letter that
they "hope[d] to minimize the volume of mail sent" to Healthdyne shareholders
and "plann[ed] to minimize the cost" of mailings to the shareholders by
"avoiding unnecessary communications."
 
    On Thursday, March 20, 1997, the Parent, as a shareholder of the Company,
delivered the Nomination and Proposal Notice to the Company pursuant to the
By-Laws notifying the Company of the Parent's intent to nominate the Nominees
and make the Proposals at the Annual Meeting, and issued the following press
release:
 
                 INVACARE SUBMITS BOARD SLATE AND PROPOSALS TO
                   HEALTHDYNE TECHNOLOGIES FOR ANNUAL MEETING
 
        Elyria, Ohio--(March 20, 1997)--Invacare Corporation announced today
    that it has provided notice to Healthdyne Technologies, Inc. of its
    intention to nominate seven director candidates at Healthdyne's upcoming
    (but as yet unscheduled) 1997 annual meeting.
 
        In the notice given to Healthdyne, Invacare also submitted a set of
    corporate governance bylaw amendments for consideration by shareholders
    at the annual meeting. The proposed amendments are designed to
    facilitate the change in the Board and the consummation of Invacare's
    fully-financed, premium tender offer; prevent manipulation by the
    current Board of Healthdyne's by-laws and of the size of the Board to be
    elected at the annual meeting; allow for a special meeting to be called
    by shareholders owning 10% of the Company's stock; and cause the
    existing Board to eliminate the Company's "dead-hand" pill provisions.
 
        Invacare has submitted the slate and proposals to Healthdyne at this
    time in order to comply with the Company's advance notification bylaw,
    which requires notifying Healthdyne prior to Tuesday, March 25, 1997.
 
        A. Malachi Mixon, III, Chairman and Chief Executive Officer of
    Invacare, said, "We are very proud to assemble this exceptionally strong
    slate of seven well-qualified, independent candidates. Given the
    Company's refusal to date to sit down and talk to us regarding our
    fully-
 
                                       7
<PAGE>
    financed, premium tender offer, we are forced to take this action now to
    preserve our rights to seek replacement of the Board and make related
    proposals at the annual meeting."
 
        "We urge the Board of Healthdyne to spare their shareholders the
    expense and delay of proceeding with a proxy contest, abandon their
    'not-for-sale' position and begin discussions with us so that all
    shareholders can receive immediate value for their investment."
 
        Although Healthdyne held last year's annual meeting on May 23 and
    the previous year's meeting in April, it has yet to announce either a
    record date or meeting date for the 1997 annual meeting. Thomas R.
    Miklich, Chief Financial Officer and General Counsel of Invacare, said,
    "Shortly after we announced our interest in acquiring Healthdyne, their
    Board of Directors amended their bylaws to eliminate the long-standing
    provision that set the fourth Tuesday in April as the date for annual
    meetings unless an alternative date was designated by the Board.
    Invacare believes that the Healthdyne Board is obligated by its
    fiduciary duties and Georgia law to hold its annual meeting promptly and
    intends to request the courts to order the meeting to be held if
    Healthdyne does not call the meeting on a timely basis."
 
        The Invacare candidates nominated for election at the annual meeting
    are Messrs. Nicholas J. DiCicco, Jr., Donald F. Hastings, Jack Kahl,
    Jr., Ernest Peter Mansour, Jon H. Outcalt, James Allen Rutherford and
    Bill R. Sanford.
 
        Mr. DiCicco has been President and Chief Executive Officer of
    Midwestern National Life Insurance Company of Ohio since 1975.
 
        Mr. Hastings has been Chairman of the Board of the Lincoln Electric
    Company, a welding products manufacturer, since 1992, and was also Chief
    Executive Officer of The Lincoln Electric Company from 1992 to 1996.
 
        Mr. Kahl has been Chairman of the Board and Chief Executive Officer
    of Manco, Inc., a company specializing in the production of heavy duty
    adhesive tape, since 1971. He is currently a member of the Board of
    Directors of Royal Appliance MFG. Co. and Applied Industrial
    Technologies, Inc.
 
        Mr. Mansour is managing partner of the Cleveland law firm of
    Mansour, Gavin, Gerlack & Manos Co., L.P.A.
 
        Mr. Outcalt has been Chairman of the Board of NCS Healthcare, Inc.
    since 1986 and Senior Vice President of Alliance Capital Management from
    1975 until 1995. He serves on the Boards of Myers Industries, Inc. and
    Ohio Savings Financial Corp.
 
        Mr. Rutherford is Chairman and Managing Director of Wingset
    Investments Ltd., a technology venture fund. He is a member of the
    Boards of Ciber, Inc. and Symix Systems, Inc.
 
        Mr. Sanford is Chairman, President and Chief Executive Officer of
    STERIS Corporation, an infection prevention and surgical support
    company. He is a Board member of KeyBank, N.A.
 
        Invacare's $13 per share tender offer is currently scheduled to
    expire at 6:00 p.m. on Monday, March 24, 1997, unless extended.
 
                                       8
<PAGE>
    Shortly after delivering the Nomination and Proposal Notice and issuing the
above press release on March 20, the Parent learned of proposed legislation (the
"Director-Entrenchment Legislation") introduced in the Georgia state Senate in
the late afternoon of that day (which, the Parent later confirmed, had been
engineered by the Company and its Board of Directors) which, if adopted, would
amend the GBCC to provide, among other things, that every publicly-held
corporation incorporated in the State of Georgia, including the Company, would
be required to have a "staggered" board of directors and that the shareholders
of such corporations would only be permitted to remove directors for extreme
circumstances unrelated to the Company's performance. The Parent then engaged
additional advisors to assist in communicating to the Georgia legislative
community its opposition to the Director-Entrenchment Legislation and, in the
morning of Friday, March 21, 1997, issued the following press release:
 
                 INVACARE FAULTS PROPOSED GEORGIA LAW MANDATING
                    STAGGERED BOARDS FOR GEORGIA COMPANIES;
                SUSPECTS HEALTHDYNE TECHNOLOGIES BEHIND PROPOSAL
 
        Elyria, Ohio--(March 21, 1997)--A. Malachi Mixon, III, Chairman and
    Chief Executive Officer of Invacare Corporation made the following
    comment regarding an anti-takeover proposal introduced yesterday as a
    last minute amendment to a routine bill in the Georgia legislature. This
    bill could be passed as early as today and, if adopted, would have a
    substantial adverse impact on shareholders of Healthdyne Technologies,
    Inc. and other public Georgia companies which elect their entire Board
    of Directors annually:
 
        "We are incredulous to find out that an eleventh hour bill has been
    introduced that would impose a 'staggered board' scheme on all
    publicly-held Georgia companies. Under a staggered board scheme only one
    third of a board would stand for election each year, thus entrenching
    the remaining two thirds. Virtually every state in America requires a
    shareholder vote to approve a staggered board. The effect of this
    proposed bill would be to deprive all investors in Georgia publicly
    traded companies of their right to decide whether they should be able to
    elect an entire board at each year's meeting. The bill also contains
    other provisions that would entrench management at the expense of
    shareholders, including stripping shareholders of their current right to
    remove directors for any reason."
 
        "We strongly suspect that Healthdyne's board and management, who are
    the most obvious beneficiaries of this bill, are behind this proposal.
    This proposed bill was introduced on the same day that Healthdyne
    received Invacare's notice of nomination of directors to replace the
    entire Healthdyne board of directors at their upcoming annual meeting."
 
        "Without this bill Healthdyne's entire Board must stand for
    re-election at the upcoming 1997 Annual Meeting. This bill, if passed,
    would entrench the Board well into 1998 and permit the Board to
    frustrate the wishes of the rightful owners of Healthdyne. Shareholders
    of Georgia corporations like Healthdyne should continue to have the
    right to make this basic governance decision, not the state
    legislature."
 
        "We hope the Georgia legislature will recognize this last minute
    bill for what it is: an attempt to entrench the incumbent management of
    one company at the expense of shareholders of all Georgia companies."
 
        "Shareholders of all Georgia companies who elect their entire Board
    annually, including Healthdyne, should be outraged at this bill and
    should contact the Georgia legislature and Governor and the management
    of their companies as soon as possible to express their opposition."
 
                                       9
<PAGE>
        As previously announced, Invacare is proposing a slate of seven
    director nominees and set of corporate governance bylaw amendments for
    consideration by shareholders at the annual meeting.
 
        The Invacare candidates nominated for election at the annual meeting
    are Messrs. Nicholas J. DiCicco, Jr., Donald F. Hastings, Jack Kahl,
    Jr., Ernest Peter Mansour, Jon H. Outcalt, James Allen Rutherford and
    Bill R. Sanford. The proposed amendments are designed to facilitate the
    change in the Board and the consummation of Invacare's fully-financed,
    premium tender offer; prevent manipulation by the current Board of
    Healthdyne's by-laws and of the size of the Board to be elected at the
    annual meeting; allow for a special meeting to be called by shareholders
    owning 10% of the Company's stock; and cause the existing Board to
    eliminate the Company's "dead-hand" pill provisions.
 
        Invacare's $13 per share tender offer is currently scheduled to
    expire at 6:00 p.m. on Monday, March 24, 1997, unless extended.
 
    Also on March 21, 1997, following the issuance of the Parent's press
release, the Company announced that on the previous day, March 20, its Board of
Directors had adopted amendments to the By-Laws which, among other things,
purport to permit the Company and its Board of Directors to delay a special
meeting for more than four months after receiving the requisite shareholder
demands. In its announcement, the Company claimed that the By-Law amendments had
been adopted before the Company received the Nomination and Proposal Notice,
despite the fact that the amendments were not announced until well into the
following day. The Company also announced that on March 20, just prior to
publicly launching its legislative effort to strip its shareholders of critical
rights, the Board of Directors had approved the Company's entering into
indemnification agreements with its directors and officers, which agreements,
among other things, attempt to insulate the Company's directors and officers
from liability for any actions taken or failing to be taken by them in such
capacities, presumably including any actions with respect to the legislative
efforts.
 
    The Georgia state Senate passed the Director-Entrenchment Legislation later
in the day on Friday, March 21. Uncertain of the eventual outcome of the
Director-Entrenchment Legislation and facing a possible technical deadline under
the By-Laws for notification of shareholder proposals, the Parent was forced to
submit a supplemental notice to the Company on Monday, March 24, 1997 notifying
the Company of the Parent's intent, if the Director-Entrenchment Legislation
were to be enacted as law, to make additional proposals at the Annual Meeting
that the shareholders resolve to demand that the Company and its Board of
Directors (i) "opt-out" of the Director-Entrenchment Legislation or any similar
provisions and (ii) immediately act to permit the Company to be acquired
pursuant the Offer and the Merger or another transaction offering demonstrably
greater value (since the Director-Entrenchment Legislation has been resoundingly
defeated, the Parent does not intend to make such proposals at the Annual
Meeting). At the close of business on March 24, the Parent issued the following
press release:
 
                  INVACARE CORPORATION ANNOUNCES EXTENSION OF
                    TENDER OFFER FOR HEALTHDYNE TECHNOLOGIES
 
        Elyria, Ohio--(March 24, 1997)--Invacare Corporation announced today
    that its wholly owned subsidiary I.H.H. Corp. has extended its $13 per
    share tender offer to purchase all the outstanding shares of common
    stock of Healthdyne Technologies, Inc. until 6:00 p.m., New York City
    time, on Monday, April 7, 1997, unless further extended in the manner
    described in the Offer to Purchase dated January 27, 1997. The offer had
    been scheduled to expire at 6:00 p.m., New York City time, on Monday,
    March 24, 1997. As of 5:00 p.m. today, approximately 2,323,395 shares of
    Healthdyne common stock had been validly tendered in connection with the
    offer, which, together with the 600,000 shares owned by Invacare,
    constitutes 23% of
 
                                       10
<PAGE>
    outstanding Healthdyne common stock, based on the most recent
    information provided by Healthdyne.
 
        A. Malachi Mixon, III, Chairman and Chief Executive Officer of
    Invacare, said: "We are pleased at the support we have received so far
    from Healthdyne's shareholders, and trust that our announcement of our
    seven highly-qualified director nominees and our shareholder proposals
    will further garner that support."
 
        "Based on Healthdyne's delay in calling their annual meeting and
    their desperate and extraordinary attempt to do an end-run around their
    own shareholders--by trying to manipulate the Georgia legislature to
    strip Healthdyne's shareholders of critical shareholder rights by
    mandating staggered boards and other director-entrenching measures--we
    can only assume that Healthdyne and its board are scared of what their
    own shareholders may say and do at the upcoming annual meeting."
 
        "If the Healthdyne shareholders want a staggered board, they can
    always approve one at the annual meeting on their own. We challenge
    Healthdyne to stop trying to hide behind the skirts of the Georgia
    legislature, schedule their annual meeting promptly, and let their own
    shareholders exercise their right to elect the entire board of directors
    and thereby decide who should run the company and whether it should be
    sold. In light of the attempts of Healthdyne's board and management to
    disenfranchise them, the Healthdyne shareholders should seriously
    consider whether they have any reason to place their trust and loyalty
    in the current directors and management team."
 
        "Nearly three months have passed, and unfortunately for Healthdyne
    shareholders, the company has done nothing to maximize shareholder value
    and no one has come forward with a better offer than ours. Given the
    recent precipitous drop in Healthdyne's stock price on news of the
    proposed legislation, the market price is clearly in response to our
    fully financed, premium tender offer, not to the Company's rosy
    suggestions about future performance. As we have stated repeatedly, we
    continue to be interested in meeting with Healthdyne in the hopes of
    promptly negotiating a mutually agreeable transaction and in that
    context would be prepared to discuss all aspects of our offer fully,
    including, if Healthdyne's management is able to substantiate additional
    value to our satisfaction, our offer price. We are frankly tired of
    Parker H. Petit, Healthdyne's Chairman, criticizing us as
    'bargain-hunters' when he refuses to provide us any information which
    would justify a higher price."
 
    On Tuesday, March 25, 1997, the Georgia state House of Representatives voted
overwhelmingly, by a more than 2-to-1 margin, to reject the
Director-Entrenchment Legislation. After the Senate and the House of
Representatives each voted to insist on their own actions, a joint conference
committee was appointed to try to suggest a means to remedy the inconsistency.
 
    On Friday, March 28, 1997, Mr. Petit, despite his March 4 pledge to
Healthdyne shareholders "to minimize the volume . . . [and] the cost" of
mailings to them by "avoiding unnecessary communications," sent yet another
letter to the shareholders in which he: reiterated his belief that the Parent's
offer price was too low; repeated the information regarding the level of tenders
already provided in the Parent's March 24, 1997 press release; stated that the
Nominees could be expected to facilitate the Offer and the Merger; claimed that
the Company's efforts to engineer the Director-Entrenching Legislation were not
"aimed at entrenching management"; pledged that if the Company could not
demonstrate greater shareholder value than the Parent's offer price that he
would ask the Board of Directors "to take other action to enhance shareholder
value"; and promised that shareholders would be pleased with first quarter
results.
 
                                       11
<PAGE>
    Late in the evening on March 28, the joint conference committee rejected the
Director-Entrenchment Legislation, following which the Georgia General Assembly
recessed for the remainder of 1997.
 
    On Monday, March 31, 1997, the Parent issued the following press release and
sent the letter reprinted therein from Mr. Mixon to Mr. Petit:
 
                 INVACARE ANNOUNCES INCREASE IN OFFER PRICE FOR
              HEALTHDYNE TECHNOLOGIES TO $13.50 AND EXTENDS OFFER
 
            Elyria, Ohio -- (March 31, 1997) - Invacare Corporation
    announced today that its wholly owned subsidiary I.H.H. Corp. has
    increased the price in its tender offer for all outstanding shares of
    common stock of Healthdyne Technologies, Inc. to $13.50 per share, net
    to the seller in cash without interest thereon, upon the other terms and
    subject to the conditions set forth in the Offer to Purchase dated
    January 27, 1997 and the related Letter of Transmittal, and has extended
    the tender offer to 6:00 p.m., New York City time, on Monday, April 28,
    1997, unless further extended in the manner described in the Offer to
    Purchase. The increased offer represents a 52% premium over Healthdyne's
    stock price on the trading day before Invacare made its initial
    acquisition proposal.
 
        In addition, Invacare announced that A. Malachi Mixon, III, Chairman
    and Chief Executive Officer of Invacare Corporation, today sent a letter
    to Parker H. Petit, Chairman of the Board of Directors of Healthdyne,
    urging a meeting of the companies and, among other things, expressing
    concern about certain recent extraordinary actions taken by Healthdyne.
    The full text of the letter follows:
 
    Mr. Parker H. Petit
    Chairman
    Healthdyne Technologies, Inc.
    Kennestone Circle
    Marietta, GA 30066
 
    Dear Mr. Petit:
 
        I have read with interest your March 28 letter to your shareholders
    in which you again refer to our $13 per share tender offer as 'grossly
    inadequate' and point to the fact that first quarter results will
    reflect improved performance. In fact, Invacare's offer is based on our
    hope that you can accomplish a turnaround in operating performance and
    meet estimates of $.70 per share for 1997. Frankly, however, we are
    concerned about Healthdyne management's ability to do so, not only
    because Healthdyne has failed to meet analysts' estimates in the past
    eight quarters, but also because we have heard in the marketplace that
    Healthdyne may have taken extraordinary actions meant to provide a
    short-term boost to first quarter earnings. For example, we have been
    informed that certain of your major independent sales representatives
    had their commissions summarily reduced by Healthdyne in early January,
    shortly after we made our offer to you. We have also been informed that
    some of your major customers were persuaded to purchase not only their
    first quarter requirements, but also future requirements through an
    extended dating payment program, with Healthdyne paying the storage
    costs of this channel-loading strategy. I fear the balance of
    Healthdyne's year will be penalized by such actions. We can only justify
    our offer if, in fact, your management team can produce consistent
    earnings, not one 'window-dressed' quarter.
 
        Frankly, I hope that you will agree immediately to meet with me to
    discuss our offer. I am a reasonable and logical CEO whose first
    interest is in creating shareholder value; I hope you are
 
                                       12
<PAGE>
    too. Invacare is the world leader in the manufacture and distribution of
    home medical equipment. In fact, the January 1997 issue of FINANCIAL
    WORLD listed Invacare as one of America's fastest growing corporations
    out of a 10,000 public company universe. No other home medical equipment
    manufacturer was listed. Invacare management has met 28 consecutive
    quarters and seven consecutive years of Wall Street estimates. Even with
    that track record, Invacare currently trades at 16X 1997 forecasted
    earnings. How can you so cavalierly reject our $13 per share offer that
    already represents almost 30X your 1996 earnings and 19X your highest
    current 1997 analyst estimate? Even if you meet that optimistic
    estimate, it's hard to see how your shares can trade at or above our
    offer price in the absence of our bid. Furthermore, our bid is available
    today, unlike the speculative future trading value.
 
        Your unsuccessful attempt to hide behind the skirts of the Georgia
    legislation was clever but ill-conceived, resulting in tremendous and
    wasteful expense on both sides. Let's not continue to waste time and
    money on legal maneuvers.
 
        Under Georgia law, the Company must promptly hold an Annual Meeting
    of its shareholders. At this time the Company appears to have failed to
    take the customary steps necessary to hold its Annual Meeting in
    compliance with law and its fiduciary duties. We urge you to take such
    steps promptly so that we can avoid having to get the courts further
    involved.
 
        We both know that a shareholder meeting is imminent. Instead of
    spending money on a proxy fight and legal maneuvering, isn't now the
    time for us together to explore the combination of two excellent
    companies? Perhaps there are values or synergies about which I am
    unaware. As we have said repeatedly, if there are, we would consider
    adjusting our price upward. In any event, to show good faith, and in the
    hopes of accelerating this process, we are today increasing our offer
    price to $13.50 per share, a premium of 52% over the stock price before
    we made our first proposal to you. As a result of this increase, we are
    extending the expiration date of our tender offer to 6:00 p.m., New York
    City time, Monday, April 28, 1997, unless further extended.
 
        Please give this letter your most serious consideration.
 
                                          Sincerely,
                                          A. Malachi Mixon, III
                                          Chairman of the Board &
                                          Chief Executive Officer
 
        As previously announced, Invacare is proposing a slate of seven
    director nominees and a set of corporate governance bylaw amendments for
    consideration by shareholders at the annual meeting. Invacare's nominees
    are committed to taking all such actions necessary or appropriate
    (subject to any fiduciary duties they would have as directors) to
    approve and effectuate the consummation of Invacare's fully-financed,
    premium tender offer and proposed merger. The proposed amendments are
    designed to facilitate the change in the board and the consummation of
    Invacare's tender offer and proposed merger; prevent manipulation by the
    current board of Healthdyne's by-laws and of the size of the board to be
    elected at the annual meeting; allow for special meetings to be called
    by shareholders owning 10% of Healthdyne's stock; and cause the existing
    board to eliminate Healthdyne's "dead-hand" pill provisions.
 
        The tender offer had been scheduled to expire at 6:00 p.m., New York
    City time, on Monday, April 7, 1997. As of 4:00 p.m. today,
    approximately 2,195,978 shares had been tendered in connection with the
    offer, which, together with the 600,000 shares owned by
 
                                       13
<PAGE>
    Invacare, constitutes approximately 22% of outstanding Healthdyne common
    stock based on the most recent information provided by Healthdyne.
 
    On April 2, 1997, Mr. Petit sent a letter to Mr. Mixon stating that the
Board of Directors had rejected the increased Offer and that Cowen & Company had
advised that the Offer was "grossly inadequate" despite the price increase. Mr.
Petit further stated that the Company expected to have "excellent" first quarter
earnings. In addition, Mr. Petit said that the Company expected its stock to be
valued in excess of the increased Offer price, suggested that the Parent drop
the Defensive Tactics Litigation and claimed that the Company was complying with
all legal requirements regarding the scheduling of the Annual Meeting. The
letter was included in an April 3, 1997 press release by the Company which
reiterated much of the same information and in which Mr. Petit claimed that the
concerns raised by the Parent in its March 31 press release were
"misinformation", "false" and "manipulative". Mr. Petit also stated in the press
release that it was "clear that Invacare wants to force an early meeting" of
shareholders, but did not indicate when the Annual Meeting would be held or why
the Company had not yet taken action necessary to hold the Annual Meeting in the
same time period as its two previous annual meetings.
 
    8.  PURPOSE OF THE OFFER; THE MERGER; PLANS FOR THE COMPANY.  The discussion
set forth in Section 11 of the Offer to Purchase is hereby amended and
supplemented as follows:
 
    BOARD APPROVAL.  On March 20, 1997, the Parent delivered the Nomination and
Proposal Notice to the Company pursuant to the By-Laws notifying the Company of
the Parent's intent to nominate seven director candidates and propose a set of
corporate governance bylaw amendments for consideration by shareholders at the
upcoming (but as yet unscheduled) Annual Meeting. Each of the Parent's nominees
are committed to taking all such actions necessary or appropriate (subject to
any fiduciary duties they would have as directors) to approve and effectuate the
consummation of the Offer and the Merger. The proposed amendments are designed
to, among other things: facilitate the change in the Board of Directors and the
consummation of the Offer and the Merger; prevent manipulation by the current
Board of the By-Laws and of the size of the Board to be elected at the Annual
Meeting; allow for special meetings to be called by shareholders owning 10% of
the outstanding Shares; and cause the existing Board to eliminate the "dead-hand
pill" restrictions in the Rights Agreement.
 
    THIS SUPPLEMENT DOES NOT CONSTITUTE A SOLICITATION OF A PROXY, CONSENT OR
AUTHORIZATION FOR OR WITH RESPECT TO THE ANNUAL MEETING OR ANY SPECIAL MEETING
OF THE COMPANY'S SHAREHOLDERS OR ANY ACTION IN LIEU THEREOF. ANY SUCH
SOLICITATION WHICH THE PURCHASER OR THE PARENT MAY MAKE WILL BE MADE ONLY
PURSUANT TO SEPARATE PROXY MATERIALS IN COMPLIANCE WITH THE REQUIREMENTS OF
SECTION 14(A) OF THE EXCHANGE ACT.
 
    THE RIGHTS.  According to the Company's Solicitation/Recommendation
Statement on Schedule 14D-9 filed with the Commission on January 31, 1997, the
Company amended the Rights Agreement on January 30, 1997 so that a "Distribution
Date" for the Rights will occur upon the earlier of (i) the close of business on
the tenth day after the Stock Acquisition Date (or, if the tenth day after the
Stock Acquisition Date occurs before the Record Date, the close of business on
the Record Date) or (ii) at such time as the Company's Board of Directors may
designate after the date of the commencement of a tender offer or exchange offer
if upon consummation thereof the person or group proposing such offer would be
the beneficial owner of 20% or more of the outstanding Shares.
 
    PLANS FOR THE COMPANY.  Based on information currently known to the Parent,
if the Offer and the Merger are consummated, the Parent does not plan to close
the Company's Marietta, Georgia manufacturing plant; the Parent's goal is to
double the size of the Company's business over the next four to five years; and
the Parent will not decrease manufacturing employment at the Company within the
next three years, subject only to market conditions beyond the Parent's control.
 
                                       14
<PAGE>
    9.  EFFECT OF THE OFFER ON THE MARKET FOR THE SHARES, NASDAQ LISTING AND
EXCHANGE ACT REGISTRATION.  The discussion set forth in Section 13 of the Offer
to Purchase is hereby amended and supplemented as follows:
 
    According to the 1996 10-K, as of March 14, 1997 there were 1,966 holders of
record of Shares.
 
    10.  CERTAIN CONDITIONS OF THE OFFER.  The discussion set forth in Section
14 of the Offer to Purchase is hereby amended and supplemented as follows:
 
    The waiting period under the HSR Act expired at 11:59 p.m. New Yor City
time, on February 14, 1997. Accordingly, the condition of the Offer relating to
the expiration or termination of all waiting periods imposed by the HSR Act has
been satisfied.
 
    11.  CERTAIN LEGAL MATTERS AND REGULATORY APPROVALS.  The discussion set
forth in Section 15 of the Offer to Purchase is hereby amended and supplemented
as follows:
 
    ANTITRUST.  The waiting period under the HSR Act expired at 11:59 p.m. New
York City time, on February 14, 1997.
 
    DEFENSIVE TACTICS LITIGATION.  On February 27, 1997, the Company filed its
Answer to the Complaint in the Defensive Tactics Litigation. In its Answer, the
Company denied the material allegations of the Complaint and made a number of
substantive averments, including that: (i) its Board of Directors fully
considered I.H.H.'s proposed acquisition before rejecting it on January 24,
1997; (ii) the Original Offer price of $13 per share was grossly inadequate; and
(iii) the Company Board of Directors may in the future adopt other defensive
measures. By way of defenses, the Company alleged that Invacare and I.H.H. lack
standing to assert a breach of fiduciary claim and that the Complaint fails to
state a claim for which relief can be granted. The Company requested, among
other things, that the Court dismiss the Complaint with prejudice and enter
judgment for the Company on all issues.
 
    Invacare has been advised that three shareholder lawsuits have been filed
against Healthdyne and its directors since the Defensive Tactics Litigation
began. In each of these lawsuits, shareholders have alleged, among other things,
that the directors of Healthdyne (i) have wrongfully refused to take the steps
necessary to maximize shareholder value, including considering the Offer, (ii)
are wrongfully using their fiduciary positions of control over Healthdyne and
unreasonable and extreme defensive tactics to thwart others in their attempts to
acquire Healthdyne, and (iii) have wrongfully relied upon various anti-takeover
devices, including the Rights and the Georgia Business Combination Statute, to
improperly block the Offer and entrench themselves in office. In addition, the
plaintiff shareholders have alledged that the Healthdyne directors have taken
defensive actions in response to Invacare's BONA FIDE Offer which are wholly
unreasonable in light of any perceived threat posed by the Offer and violate the
directors' fiduciary duties. Each of the lawsuits seeks relief substantially
similar to that sought in the Defensive Tactics Litigation.
 
    12.  MISCELLANEOUS.  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION
OR TO MAKE ANY REPRESENTATION ON BEHALF OF THE PURCHASER OR THE PARENT NOT
CONTAINED HEREIN, IN THE OFFER TO PURCHASE OR IN THE REVISED LETTER OF
TRANSMITTAL AND IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST NOT BE
RELIED UPON AS HAVING BEEN AUTHORIZED.
 
                                          I.H.H. Corp.
 
April 4, 1997
 
                                       15
<PAGE>
                                                                      SCHEDULE I
 
    Schedule I of the Offer to Purchase is hereby amended and supplemented as
follows:
 
    2.  DIRECTORS AND EXECUTIVE OFFICERS OF THE PARENT.  Gerald B. Blouch has
been a Director of the Parent since November 1996.
 
                                      I-1
<PAGE>
    Facsimile copies of the revised Letter of Transmittal, properly completed
and duly executed, will be accepted. The revised Letter of Transmittal,
certificates for Shares and/or Rights and any other required documents should be
sent or delivered by each shareholder of the Company or his broker, dealer,
commercial bank, trust company or other nominee to the Depositary as follows:
 
                        THE DEPOSITARY FOR THE OFFER IS:
                       IBJ SCHRODER BANK & TRUST COMPANY
 
<TABLE>
<S>                            <C>                            <C>
          BY MAIL:              BY FACSIMILE TRANSMISSION:        BY HAND OR OVERNIGHT
                                                                        DELIVERY:
 
         P.O. Box 84                  (212) 858-2611                One State Street
    Bowling Green Station          Attn: Reorganization         New York, New York 10004
     New York, New York            Operations Department       Attn: Securities Processing
         10274-0084                                               Window, Subcellar One
    Attn: Reorganization           CONFIRM FACSIMILE BY
    Operations Department               TELEPHONE:
                                      (212) 858-2103
</TABLE>
 
    Any questions and requests for assistance may be directed to the Information
Agent or the Dealer Manager at their respective telephone numbers and addresses
listed below. Additional copies of the Offer to Purchase, this Supplement, the
revised Letter of Transmittal and the revised Notice of Guaranteed Delivery may
also be obtained from the Information Agent. You may also contact your broker,
dealer, commercial bank or trust company for assistance concerning the Offer.
 
                    THE INFORMATION AGENT FOR THE OFFER IS:
 
                        [MACKENZIE PARTNERS, INC. LOGO]
 
                                156 Fifth Avenue
                               New York, NY 10010
                         (212) 929-5500 (call collect)
                                       or
                         CALL TOLL-FREE: (800) 322-2885
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                              SALOMON BROTHERS INC
 
                            Seven World Trade Center
                            New York, New York 10048
                         (212) 783-6592 (Call Collect)

<PAGE>
                             LETTER OF TRANSMITTAL
                        TO TENDER SHARES OF COMMON STOCK
           (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS)
                                       OF
                         HEALTHDYNE TECHNOLOGIES, INC.
                       PURSUANT TO THE OFFER TO PURCHASE
                             DATED JANUARY 27, 1997
                           AND THE SUPPLEMENT THERETO
                              DATED APRIL 4, 1997
                                       BY
                                  I.H.H. CORP.
                          A WHOLLY OWNED SUBSIDIARY OF
                              INVACARE CORPORATION
<TABLE>
<CAPTION>
<S>              <C>
THE OFFER HAS BEEN EXTENDED. THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 6:00 P.M.,
NEW YORK CITY TIME, ON MONDAY, APRIL 28, 1997, UNLESS THE OFFER IS FURTHER EXTENDED.
</TABLE>
                        THE DEPOSITARY FOR THE OFFER IS:
                       IBJ SCHRODER BANK & TRUST COMPANY
 
<TABLE>
<S>                                   <C>                                   <C>
              BY MAIL:                     BY FACSIMILE TRANSMISSION:          BY HAND OR OVERNIGHT DELIVERY:
 
            P.O. Box 84                          (212) 858-2611                       One State Street
       Bowling Green Station                 Attn.: Reorganization                New York, New York 10004
         New York, New York                  Operations Department              Attn.: Securities Processing
             10274-0084                                                            Window, Subcellar One
       Attn.: Reorganization                  CONFIRM FACSIMILE BY
       Operations Department               TELEPHONE: (212) 858-2103
</TABLE>
 
    DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS OTHER THAN AS SET FORTH
ABOVE, OR TRANSMISSIONS OF INSTRUCTIONS VIA A FACSIMILE NUMBER OTHER THAN AS SET
FORTH ABOVE, WILL NOT CONSTITUTE A VALID DELIVERY.
 
    THE INSTRUCTIONS ACCOMPANYING THIS LETTER OF TRANSMITTAL SHOULD BE READ
CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.
 
    While the original Letter of Transmittal previously circulated with the
Offer to Purchase dated January 27, 1997 refers only to such Offer to Purchase,
shareholders using such document to tender their Shares and Rights (as such
terms are defined below) will nevertheless receive $13.50 per Share for each
Share validly tendered and not properly withdrawn and accepted for payment
pursuant to the Offer (as defined below), subject to the conditions of the
Offer. Shareholders who have previously validly tendered and not properly
withdrawn their Shares pursuant to the Offer are not required to take any
further action to receive, subject to the conditions of the Offer, the increased
tender price of $13.50 per Share if Shares are accepted for payment and paid for
by the Purchaser (as defined below) pursuant to the Offer.
 
    This revised Letter of Transmittal or the Letter of Transmittal previously
delivered to shareholders is to be completed by shareholders either if
certificates for Shares or Rights are to be forwarded herewith or, unless an
Agent's Message (as defined in Section 2 of the Offer to Purchase (as defined
below)) is utilized, if tenders of Shares or Rights are to be made by book-entry
transfer into the account of IBJ Schroder Bank & Trust Company, as Depositary
(the "Depositary"), at The Depository Trust Company ("DTC") or the Philadelphia
Depository Trust Company ("PDTC") (each a "Book-Entry Transfer Facility" and
collectively, the "Book-Entry Transfer Facilities") pursuant to the book-entry
procedures set forth in Section 3 of the Offer to Purchase (as defined below).
Shareholders who tender Shares or Rights by book-entry transfer are referred to
herein as "Book-Entry Shareholders".
 
    Unless and until I.H.H. Corp., a Delaware corporation (the "Purchaser"),
declares that the Rights Condition (as defined in the Offer to Purchase) is
satisfied, holders of Shares will be required to tender one Right for each Share
tendered in order to effect a valid tender of such Share. If the Distribution
Date (as defined in the Supplement described below) has not occurred prior to
the time Shares are tendered pursuant to the Offer, a tender of Shares will also
constitute a tender of the associated Rights. See Section 3 of the Offer to
Purchase. If the Distribution Date has occurred, and certificates representing
Rights (the "Rights Certificates") have been distributed to holders of Shares,
such holders will be required to tender Rights Certificates representing a
number of Rights equal to the number of Shares being tendered in order to effect
a valid tender of such Shares. Holders of Shares and Rights whose certificates
for such Shares (the "Share Certificates") and, if applicable, Rights
Certificates are not immediately available or who cannot deliver their Share
Certificates or, if applicable, Rights Certificates and all other required
documents to the Depositary prior to the Expiration Date (as defined in Section
1 of the Supplement), or who cannot complete the procedure for book-entry
transfer on a timely basis, must tender their Shares and Rights according to the
guaranteed delivery procedure set forth in Section 3 of the Offer to Purchase.
See Instruction 2. DELIVERY OF DOCUMENTS TO A BOOK-ENTRY TRANSFER FACILITY DOES
NOT CONSTITUTE DELIVERY TO THE DEPOSITARY.
<PAGE>
                NAME(S) AND ADDRESS(ES) OF REGISTERED HOLDER(S)
<TABLE>
<S>                                      <C>                                      <C>
                                             DESCRIPTION OF SHARES TENDERED
 
<CAPTION>
                                       SHARE CERTIFICATE(S) AND SHARE(S) TENDERED
                                         (ATTACH ADDITIONAL LIST, IF NECESSARY)
<S>                                      <C>                                      <C>
<CAPTION>
                                                         SHARES
                 SHARE                                EVIDENCED BY
              CERTIFICATE                                 SHARE                                   SHARES
              NUMBER(S)*                             CERTIFICATE(S)*                            TENDERED**
<S>                                      <C>                                      <C>
TOTAL SHARES....................................................................
 * NEED NOT BE COMPLETED BY BOOK-ENTRY SHAREHOLDERS.
** UNLESS OTHERWISE INDICATED, ALL SHARE CERTIFICATES DELIVERED TO THE DEPOSITARY WILL BE DEEMED TO HAVE BEEN TENDERED.
   SEE INSTRUCTION 4.
</TABLE>
<TABLE>
<CAPTION>
                                             DESCRIPTION OF RIGHTS TENDERED*
 
                                       RIGHTS CERTIFICATE(S) AND RIGHT(S) TENDERED
                                         (ATTACH ADDITIONAL LIST, IF NECESSARY)

                                                         RIGHTS
                RIGHTS                                EVIDENCED BY
              CERTIFICATE                                RIGHTS                                   RIGHTS
              NUMBER(S)**                           CERTIFICATE(S)**                            TENDERED***
<S>                                      <C>                                      <C>
TOTAL RIGHTS....................................................................
  * NEED NOT BE COMPLETED IF THE DISTRIBUTION DATE HAS NOT OCCURRED.
 ** NEED NOT BE COMPLETED BY BOOK-ENTRY SHAREHOLDERS.
*** UNLESS OTHERWISE INDICATED, ALL RIGHTS CERTIFICATES DELIVERED TO THE DEPOSITARY WILL BE DEEMED
    TO HAVE BEEN TENDERED. SEE INSTRUCTION 4.
</TABLE>
<PAGE>
                NAME(S) AND ADDRESS(ES) OF REGISTERED HOLDER(S)
<TABLE>
<S>                               <C>                               <C>
                                   DESCRIPTION OF SHARES TENDERED
 
<CAPTION>
                             SHARE CERTIFICATE(S) AND SHARE(S) TENDERED
                               (ATTACH ADDITIONAL LIST, IF NECESSARY)
<S>                               <C>                               <C>
<CAPTION>
                                               SHARES
             SHARE                          EVIDENCED BY
          CERTIFICATE                          SHARE                             SHARES
           NUMBER(S)*                     CERTIFICATE(S)*                      TENDERED**
<S>                               <C>                               <C>
TOTAL SHARES......................................................
 * NEED NOT BE COMPLETED BY BOOK-ENTRY SHAREHOLDERS.
** UNLESS OTHERWISE INDICATED, ALL SHARE CERTIFICATES DELIVERED TO THE DEPOSITARY WILL BE DEEMED TO
   HAVE BEEN TENDERED. SEE INSTRUCTION 4.
</TABLE>
<TABLE>
<S>                               <C>                               <C>
                                  DESCRIPTION OF RIGHTS TENDERED*
 
<CAPTION>
                            RIGHTS CERTIFICATE(S) AND RIGHT(S) TENDERED
                               (ATTACH ADDITIONAL LIST, IF NECESSARY)
<S>                               <C>                               <C>
<CAPTION>
                                               RIGHTS
             RIGHTS                         EVIDENCED BY
          CERTIFICATE                          RIGHTS                            RIGHTS
          NUMBER(S)**                     CERTIFICATE(S)**                    TENDERED***
<S>                               <C>                               <C>
TOTAL RIGHTS......................................................
  * NEED NOT BE COMPLETED IF THE DISTRIBUTION DATE HAS NOT OCCURRED.
 ** NEED NOT BE COMPLETED BY BOOK-ENTRY SHAREHOLDERS.
*** UNLESS OTHERWISE INDICATED, ALL RIGHTS CERTIFICATES DELIVERED TO THE DEPOSITARY WILL BE DEEMED
    TO HAVE BEEN TENDERED. SEE INSTRUCTION 4.
</TABLE>
 
<PAGE>
/ / CHECK HERE IF SHARES ARE BEING TENDERED BY BOOK-ENTRY TRANSFER TO THE
    DEPOSITARY'S ACCOUNT AT ONE OF THE BOOK-ENTRY TRANSFER FACILITIES AND
    COMPLETE THE FOLLOWING (ONLY PARTICIPANTS IN A BOOK-ENTRY TRANSFER FACILITY
    MAY DELIVER RIGHTS BY BOOK-ENTRY TRANSFER):
Name of Tendering Institution __________________________________________________
 
Check box of applicable Book-Entry Transfer Facility:
 
(CHECK ONE)                / / DTC                / / PDTC
Account Number                                        Transaction Code Number
- ------------------------                              ------------------------
 
/ / CHECK HERE IF SHARES ARE BEING TENDERED PURSUANT TO A NOTICE OF GUARANTEED
    DELIVERY PREVIOUSLY SENT TO THE DEPOSITARY AND COMPLETE THE FOLLOWING.
    PLEASE ENCLOSE A PHOTOCOPY OF SUCH NOTICE OF GUARANTEED DELIVERY:
Name(s) of Registered Holder(s) ________________________________________________
Window Ticket No. (if any) _____________________________________________________
Date of Execution of Notice of Guaranteed Delivery _____________________________
Name of Institution which Guaranteed Delivery __________________________________
 
If delivered by Book-Entry Transfer, check box of Book-Entry Transfer Facility
(check one):
 
(CHECK ONE)                / / DTC                / / PDTC
 
Account Number                                        Transaction Code Number
- ------------------------                              ------------------------

<PAGE>
/ / CHECK HERE IF RIGHTS ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER TO THE
    DEPOSITARY'S ACCOUNT AT ONE OF THE BOOK-ENTRY TRANSFER FACILITIES AND
    COMPLETE THE FOLLOWING (ONLY PARTICIPANTS IN A BOOK-ENTRY TRANSFER FACILITY
    MAY DELIVER RIGHTS BY BOOK-ENTRY TRANSFER):
Name of Tendering Institution __________________________________________________
 
Check box of applicable Book-Entry Transfer Facility:
 
(CHECK ONE)                / / DTC                / / PDTC
Account Number                                        Transaction Code Number
- ------------------------                              ------------------------
 
/ / CHECK HERE IF RIGHTS ARE BEING TENDERED PURSUANT TO A NOTICE OF GUARANTEED
    DELIVERY PREVIOUSLY SENT TO THE DEPOSITARY AND COMPLETE THE FOLLOWING.
    PLEASE ENCLOSE A PHOTOCOPY OF SUCH NOTICE OF GUARANTEED DELIVERY:
Name(s) of Registered Holder(s) ________________________________________________
Window Ticket No. (if any) _____________________________________________________
Date of Execution of Notice of Guaranteed Delivery _____________________________
Name of Institution which Guaranteed Delivery __________________________________
 
If delivered by Book-Entry Transfer, check box of Book-Entry Transfer Facility
(check one):
 
(CHECK ONE)                / / DTC                / / PDTC
Account Number                                        Transaction Code Number
- ------------------------                              ------------------------
<PAGE>
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.
 
Ladies and Gentlemen:
 
    The undersigned hereby tenders to I.H.H. Corp., a Delaware corporation (the
"Purchaser") and a wholly owned subsidiary of Invacare Corporation, an Ohio
corporation (the "Parent"), the above-described shares of Common Stock, par
value $0.01 per share (the "Shares"), of Healthdyne Technologies, Inc., a
Georgia corporation (the "Company"), and (unless and until the Purchaser
declares that the Rights Condition (as defined in the Offer to Purchase
described below) is satisfied), the associated Preferred Stock Purchase Rights
(the "Rights") issued pursuant to the Rights Agreement, dated as of May 22,
1995, as amended (the "Rights Agreement"), between the Company and SunTrust
Bank, Atlanta (formerly Trust Company Bank), as Rights Agent (the "Rights
Agent"), at a purchase price of $13.50 per Share (and associated Right), net to
the seller in cash without interest thereon, upon the terms and subject to the
conditions set forth in the Offer to Purchase dated January 27, 1997 (the "Offer
to Purchase"), as amended and supplemented by the Supplement thereto dated April
4, 1997 (the "Supplement"), and in this revised Letter of Transmittal (which, as
amended from time to time, together constitute the "Offer"). Unless the context
requires otherwise, all references to Shares shall be deemed to refer also to
the associated Rights, and all references to Rights shall be deemed to include
all benefits that may inure to the shareholders of the Company or to holders of
the Rights pursuant to the Rights Agreement. The undersigned understands that
the Purchaser reserves the right to transfer or assign, in whole or from time to
time in part, to one or more of its affiliates, the right to purchase all or any
portion of the Shares and Rights tendered pursuant to the Offer, receipt of
which is hereby acknowledged.
 
    The undersigned understands that if the Distribution Date (as defined in the
Supplement) has occurred and certificates representing Rights (the "Rights
Certificates") have been distributed to holders prior to the date of tender of
the Shares and Rights tendered herewith pursuant to the Offer, Rights
Certificates representing a number of Rights equal to the number of Shares being
tendered herewith must be delivered to the Depositary (as defined below) or, if
available, a Book-Entry Confirmation (as defined herein) must be received by the
Depositary with respect thereto in order for such Shares tendered herewith to be
validly tendered. If the Distribution Date has occurred and Rights Certificates
have not been distributed prior to the time Shares are tendered herewith
pursuant to the Offer, the undersigned agrees to deliver Rights Certificates
representing a number of Rights equal to the number of Shares tendered herewith
to IBJ Schroder Bank & Trust Company (the "Depositary") within three business
days after the date such Rights Certificates are distributed. A tender of Shares
without Rights Certificates constitutes an agreement by the tendering
shareholder to deliver Rights Certificates representing a number of Rights equal
to the number of Shares tendered pursuant to the Offer to the Depositary within
three business days after the date such Rights Certificates are distributed. The
undersigned understands that if the Rights Condition is not satisfied and the
Distribution Date occurs prior to the Expiration Date, the Purchaser reserves
the right to require that the Depositary receive such Rights Certificates or a
Book-Entry Confirmation with respect to such Rights prior to accepting Shares
for payment. In that event, payment for Shares tendered and accepted for payment
pursuant to the Offer will be made only after timely receipt by the Depositary
of, or Book-Entry Confirmation with respect to, among other things, Rights
Certificates, if Rights Certificates have been distributed to holders of Shares.
<PAGE>
    Subject to, and effective upon, acceptance for payment of the Shares and
Rights tendered herewith in accordance with the terms of the Offer, the
undersigned hereby sells, assigns and transfers to, or upon the order of, the
Purchaser all right, title and interest in and to all of the Shares and Rights
that are being tendered hereby and any and all dividends, distributions
(including additional Shares) or rights declared, paid or issued with respect to
the tendered Shares on or after October 1, 1996 (except to the extent publicly
disclosed by the Company with specificity in documents filed with the Commission
prior to January 2, 1997) and payable or distributable to the undersigned on a
date prior to transfer to the name of the Purchaser or nominee or transferee of
the Purchaser on the Company's stock transfer records of the Shares tendered
herewith (except that if the Rights are redeemed by the Company's Board of
Directors in accordance with the terms of the Rights Agreement, tendering
stockholders who are holders of record as of the applicable record date will be
entitled to receive and retain the redemption price of $.01 per Right in
accordance with the Rights Agreement) (collectively, a "Distribution"), and
appoints the Depositary the true and lawful agent and attorney-in-fact of the
undersigned with respect to such Shares and Rights (and any Distribution) with
full power of substitution (such power of attorney being deemed to be an
irrevocable power coupled with an interest) to (i) deliver such Share
Certificates (as defined herein) evidencing such shares and Rights Certificates
(and any Distribution) or transfer ownership of such Shares and Rights (and any
Distribution) on the account books maintained by a Book-Entry Transfer Facility,
together, in either case, with appropriate evidences of transfer, to the
Depositary for the account of the Purchaser, (ii) present such Shares and Rights
(and any Distribution) for transfer on the books of the Company and (iii)
receive all benefits and otherwise exercise all rights of beneficial ownership
of such Shares and Rights and any Distribution, all in accordance with the terms
and subject to the conditions of the Offer.
 
    By executing this Letter of Transmittal, the undersigned irrevocably
appoints designees of the Purchaser and each of them as such shareholder's
attorneys-in-fact and proxies, with full power of substitution, in the manner
set forth in this Letter of Transmittal, to the full extent of such
shareholder's rights with respect to the Shares and Rights tendered by such
shareholder and accepted for payment by the Purchaser (and with respect to any
and all other Shares or Rights or other securities issued or issuable in respect
of such Shares or Rights on or after the date hereof). All such powers of
attorney and proxies shall be considered irrevocable and coupled with an
interest in the tendered Shares and Rights. Such appointment will be effective
when, and only to the extent that, the Purchaser accepts such Shares and Rights
for payment. Upon such acceptance for payment, all prior powers of attorney and
proxies given by such shareholder with respect to such Shares and Rights (and
such other shares and securities) will be revoked without further action, and no
subsequent powers of attorney and proxies may be given nor any subsequent
written consents executed (and, if given or executed, will not be deemed
effective). The designees of the Purchaser will, with respect to the Shares and
Rights (and such other shares and securities) for which such appointment is
effective, be empowered to exercise all voting and other rights of such
shareholder as they in their sole discretion may deem proper at any annual or
special meeting of the Company's shareholders or any adjournment or postponement
thereof, by written consent in lieu of any such meeting or otherwise. The
Purchaser reserves the right to require that, in order for Shares and Rights to
be deemed validly tendered, immediately upon the Purchaser's payment of such
Shares and Rights, the Purchaser must be able to exercise full voting rights
with respect to such Shares and Rights and other securities, including voting at
any meeting of shareholders.
 
    The undersigned hereby represents and warrants that the (a) undersigned has
full power and authority to tender, sell, assign and transfer the Shares and
Rights tendered hereby (and any Distribution) and (b) when the Shares and Rights
are accepted for payment by the Purchaser, the Purchaser will acquire good,
marketable and unencumbered title to the Shares and Rights (and any
Distribution), free and clear of all liens, restrictions, charges and
encumbrances, and the same will not be subject to any adverse claim. The
undersigned, upon request, will execute and deliver all additional documents
deemed by the Depositary or the Purchaser to be necessary or desirable to
complete the sale, assignment and transfer of the Shares and Rights tendered
hereby (and any Distribution). In addition, the undersigned shall promptly remit
and transfer to the Depositary for the account of the Purchaser any and all
Distributions in respect of the Shares and Rights tendered hereby, accompanied
by appropriate documentation of transfer; and, pending such remittance and
transfer or appropriate assurance thereof, the Purchaser shall be, subject to
applicable law, entitled to all rights and privileges as the owner of each such
Distribution, and may withhold the entire purchase price of the Shares and or
deduct from the purchase price, the amount or value of such Distribution, as
determined by the Purchaser in its sole discretion.
 
    All authority herein conferred or agreed to be conferred shall not be
affected by and shall survive the death or incapacity of the undersigned and any
obligation of the undersigned hereunder shall be binding upon the heirs,
personal representatives, successors and assigns of the undersigned.
<PAGE>
    Tenders of Shares and Rights made pursuant to the Offer are irrevocable,
except that Shares and Rights tendered pursuant to the Offer may be withdrawn at
any time prior to the Expiration Date (as defined in the Supplement) and, unless
theretofore accepted for payment by the Purchaser pursuant to the Offer, may
also be withdrawn at any time after March 28, 1997 (or such later date as may
apply as a result of extension of the Offer). See Section 4 of the Offer to
Purchase.
 
    The undersigned understands that tenders of Shares and Rights pursuant to
any of the procedures described in Section 3 of the Offer to Purchase and in the
instructions hereto will constitute a binding agreement between the undersigned
and the Purchaser upon the terms and subject to the conditions set forth in the
Offer, including the undersigned's representation and warranty that the
undersigned owns the Shares and Rights being tendered.
 
    Unless otherwise indicated herein under "Special Payment Instructions",
please issue the check for the purchase price and/or issue or return any
certificate(s) for Shares and Rights not tendered or not accepted for payment in
the name(s) of the registered holder(s) appearing under "Description of Shares
Tendered" and "Description of Rights Tendered", respectively. Similarly, unless
otherwise indicated "Special Delivery Instructions", please mail the check for
the purchase price and/or any certificate(s) for Shares and Rights not tendered
or not accepted for payment (and accompanying documents, as appropriate) to the
address(es) of the registered holder(s) appearing under "Description of Shares
Tendered" and "Description of Rights Tendered", respectively. In the event that
both the Special Delivery Instructions and the Special Payment Instructions are
completed, please issue the check for the purchase price and/or any
certificate(s) for Shares and Rights not tendered or accepted for payment in the
name of, and deliver such check and/or certificates to, the person or persons so
indicated. Unless otherwise indicated herein under "Special Payment
Instructions", please credit any Shares and Rights tendered herewith by
book-entry transfer that are not accepted for payment by crediting the account
at the Book-Entry Transfer Facility designated above. The undersigned recognizes
that the Purchaser has no obligation, pursuant to the Special Payment
Instructions, to transfer any Shares or Rights from the name(s) of the
registered holder(s) thereof if the Purchaser does not accept for payment any of
the Shares or Rights so tendered.
<PAGE>
 
<TABLE>
<S>                                             <C>
         SPECIAL PAYMENT INSTRUCTIONS                   SPECIAL DELIVERY INSTRUCTIONS
       (SEE INSTRUCTIONS 1, 5, 6 AND 7)                (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
  To be completed ONLY if certificate(s) for      To be completed ONLY if certificate(s) for
  Shares and Rights not tendered or not           Shares and Rights not tendered or not
  accepted for payment and/or the check for       accepted for payment and/or the check for
  the purchase price of Shares and Rights         the purchase price of Shares and Rights
  accepted for payment are to be issued in the    accepted for payment are to be sent to
  name of someone other than the undersigned      someone other than the undersigned or to the
  or if Shares or Rights tendered by              undersigned at an address other than that
  book-entry transfer which are not accepted      shown above.
  for payment are to be returned by credit to
  an account maintained at a Book-Entry
  Transfer Facility.
 
  Issue:  / / check    / / certificates to:       Mail:  / / check    / / certificates to:
 
  Name........................................    Name........................................
                (PLEASE PRINT)                                  (PLEASE PRINT)
 
  Address.....................................    Address.....................................
 
  ............................................     ...........................................
              (INCLUDE ZIP CODE)                              (INCLUDE ZIP CODE)
 
   ...........................................     ...........................................
       (TAX ID. OR SOCIAL SECURITY NO.)                (TAX ID. OR SOCIAL SECURITY NO.)
(SEE SUBSTITUTE FORM W-9 ON THE REVERSE SIDE)   (SEE SUBSTITUTE FORM W-9 ON THE REVERSE SIDE)
 
  Credit Shares and Rights tendered by book-
  entry transfer that are not accepted for
  payment to
  (Check one):
  / / The Depository Trust Company
  / / Philadelphia Depository Trust Company
 
  ............................................
          (DTC OR PDTC ACCOUNT NO.)
</TABLE>
 
<PAGE>
 
<TABLE>
<S>        <C>                                                                                  <C>
 
SIGN                                            IMPORTANT                                            SIGN
HERE                                     SHAREHOLDERS: SIGN HERE                                     HERE
[arrow]                             AND COMPLETE SUBSTITUTE FORM W-9                              [arrow]
           ...................................................................................
           ...................................................................................
                                       (SIGNATURE(S) OF HOLDER(S))
           Dated:...................................................................... , 1997
           (Must be signed by the registered holder(s) exactly as name(s) appear(s) on Share
           Certificate(s) or Rights Certificate(s) or on a security position listing or by
           person(s) authorized to become registered holder(s) by certificates and documents
           transmitted herewith. If signature is by trustee, executor, administrator,
           guardian, attorney-in-fact, officer of corporation or other person acting in a
           fiduciary or representative capacity, please provide the following information and
           see Instruction 5.)
           Name(s)............................................................................
           ...................................................................................
                                             (PLEASE PRINT)
           Capacity (Full Title)..............................................................
           Address............................................................................
           ...................................................................................
                                           (INCLUDE ZIP CODE)
           Area Code and Telephone Number.....................................................
           Tax Identification or
           Social Security No. ...............................................................
                                        GUARANTEE OF SIGNATURE(S)
                                       (SEE INSTRUCTIONS 1 AND 5)
           Authorized Signature...............................................................
 
           Name...............................................................................
           Name of Firm.......................................................................
                                             (PLEASE PRINT)
           Address............................................................................
                                           (INCLUDE ZIP CODE)
           Area Code and Telephone Number.....................................................
           Dated:...................................................................... , 1997
</TABLE>
<PAGE>
                                  INSTRUCTIONS
             FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER
 
    1.  GUARANTEE OF SIGNATURES.  No signature guarantee is required on this
Letter of Transmittal (a) if this Letter of Transmittal is signed by the
registered holder(s) of Shares and Rights (which term, for purposes of this
document, shall include any participant in a Book-Entry Transfer Facility whose
name appears on a security position listing as the owner of Shares and/or
Rights) tendered herewith, unless such holder(s) has completed either the box
entitled "Special Payment Instructions" or the box entitled "Special Delivery
Instructions" above, or (b) if such Shares and/ or Rights are tendered for the
account of a firm which is a bank, broker, dealer, credit union, savings
association or other entity which is a member in good standing of the Securities
Transfer Agents Medallion Program, the New York Stock Exchange Medallion
Signature Guarantee Program or the Stock Exchange Medallion Program (each of the
foregoing being referred to as an "Eligible Institution"). In all other cases,
all signatures on this Letter of Transmittal must be guaranteed by an Eligible
Institution. See Instruction 5 of this Letter of Transmittal.
 
    2.  REQUIREMENTS OF TENDER.  This Letter of Transmittal is to be completed
by shareholders either if certificates are forwarded herewith or, unless an
Agent's Message is utilized, if tenders are to be made pursuant to the procedure
for tender by book-entry transfer set forth in Section 3 of the Offer to
Purchase. Share Certificates, or timely confirmation (a "Book-Entry
Confirmation") of a book entry transfer of such Shares into the Depositary's
account at a Book-Entry Transfer Facility, as well as this Letter of Transmittal
(or a facsimile hereof), properly completed and duly executed, with any required
signature guarantees, or an Agent's Message in connection with a book-entry
transfer, and any other documents required by this Letter of Transmittal, must
be received by the Depositary at one of its addresses set forth herein prior to
the Expiration Date (as defined in Section 1 of the Supplement) and, unless and
until the Purchaser declares that the Rights Condition (as defined in the Offer
to Purchase) is satisfied, Rights Certificates or timely confirmation of a
book-entry transfer of Rights into the Depositary's account at a Book-Entry
Transfer Facility, if available (together with, if Rights are forwarded
separately from Shares, a properly completed and duly executed Letter of
Transmittal (or a facsimile hereof) with any required signature guarantees, or
an Agent's Message in the case of a book-entry delivery, and any other documents
required by this Letter of Transmittal, must be received by the Depositary at
one of its addresses set forth herein prior to the Expiration Date or, if later,
within three business days after the date such Rights Certificates are
distributed. Shareholders whose Share Certificates or Rights Certificates are
not immediately available (including Rights Certificates that have not yet been
distributed by the Company) or who cannot deliver their Share Certificates or
Rights Certificates and all other required documents to the Depositary prior to
the Expiration Date or who cannot complete the procedure for delivery by
book-entry transfer on a timely basis may tender their Shares and Rights by
properly completing and duly executing a Notice of Guaranteed Delivery pursuant
to the guaranteed delivery procedure set forth in Section 3 of the Offer to
Purchase. Pursuant to such procedure: (i) such tender must be made by or through
an Eligible Institution; (ii) a properly completed and duly executed Notice of
Guaranteed Delivery, substantially in the form made available by the Purchaser,
must be received by the Depositary prior to the Expiration Date; (iii) the Share
Certificates (or a Book-Entry Confirmation) representing all tendered Shares, in
proper form for transfer, in each case together with the Letter of Transmittal
(or a facsimile thereof), properly completed and duly executed, with any
required signature guarantees (or, in the case of a book-entry delivery, an
Agent's Message) and any other documents required by this Letter of Transmittal,
must be received by the Depositary within three Nasdaq National Market trading
days after the date of execution of such Notice of Guaranteed Delivery; and (iv)
unless and until the Purchaser declares that the Rights Condition is satisfied,
the Rights Certificates, if issued, representing the appropriate number of
Rights or a Book-Entry Confirmation, if available, in each case together with a
properly completed and duly executed Letter of Transmittal (or a facsimile
thereof), with any required signature guarantees (or, in the case of a
book-entry delivery, an Agent's Message) and any other documents required by
this Letter of Transmittal, must be received by the Depositary within three
Nasdaq National Market trading days after the date of execution of such Notice
of Guaranteed Delivery, or if later, three business days after Rights
Certificates are distributed to shareholders, all as provided in Section 3 of
the Offer to Purchase. If Share Certificates and Rights Certificates are
forwarded separately to the Depositary, a properly completed and duly executed
Letter of Transmittal must accompany each such delivery.
<PAGE>
    THE METHOD OF DELIVERY OF SHARE CERTIFICATES OR RIGHTS CERTIFICATES AND ALL
OTHER REQUIRED DOCUMENTS, INCLUDING DELIVERY THROUGH ANY BOOK-ENTRY TRANSFER
FACILITY, IS AT THE OPTION AND RISK OF THE TENDERING SHAREHOLDER. IF DELIVERY IS
BY MAIL, REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS
RECOMMENDED. IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY
DELIVERY.
 
    No alternative, conditional or contingent tenders will be accepted and no
fractional Shares and Rights will be purchased. All tendering shareholders, by
execution of this Letter of Transmittal (or a facsimile hereof), waive any right
to receive any notice of the acceptance of their Shares and Rights for payment.
 
    3.  INADEQUATE SPACE.  If the space provided herein is inadequate, the
certificate numbers and/or the number of Shares and Rights and any other
required information should be listed on a separate signed schedule attached
hereto.
 
    4.  PARTIAL TENDERS.  (NOT APPLICABLE TO BOOK-ENTRY SHAREHOLDERS) If fewer
than all the Shares evidenced by any Share Certificate submitted are to be
tendered, fill in the number of Shares which are to be tendered in the box
entitled "Number of Shares Tendered". If fewer than all the Rights evidenced by
any Rights Certificates submitted are to be tendered, fill in the number of
Rights which are to be tendered in the box entitled "Number of Rights Tendered".
In such cases, new Share Certificates or Rights Certificates, as the case may
be, for the Shares or Rights that were evidenced by your old Share Certificates
or Rights Certificates, but were not tendered by you, will be sent to you,
unless otherwise provided in the appropriate box on this Letter of Transmittal,
as soon as practicable after the Expiration Date. All Shares represented by
Share Certificates and all Rights represented by Rights Certificates delivered
to the Depositary will be deemed to have been tendered unless otherwise
indicated.
 
    5.  SIGNATURES ON LETTER OF TRANSMITTAL, STOCK POWERS AND ENDORSEMENTS.  If
this Letter of Transmittal is signed by the registered holder(s) of the Shares
and Rights tendered hereby, the signature(s) must correspond with the name(s) as
written on the face of the certificate(s) without alteration, enlargement or any
change whatsoever.
 
    If any of the Shares and Rights tendered hereby are owned of record by two
or more joint owners, all such owners must sign this Letter of Transmittal.
 
    If any of the tendered Shares and Rights are registered in different names
on several certificates, it will be necessary to complete, sign and submit as
many separate Letters of Transmittal as there are different registrations of
certificates.
 
    If this Letter of Transmittal or any certificates or stock powers are signed
by trustees, executors, administrators, guardians, attorneys-in-fact, officers
of corporations or others acting in a fiduciary or representative capacity, such
persons should so indicate when signing, and proper evidence satisfactory to the
Purchaser of their authority so to act must be submitted.
 
    If this Letter of Transmittal is signed by the registered holder(s) of the
Shares and Rights listed and transmitted hereby, no endorsements of certificates
or separate stock powers are required unless payment is to be made to or
certificates for Shares or Rights not tendered or not purchased are to be issued
in the name of a person other than the registered holder(s). Signatures on such
certificates or stock powers must be guaranteed by an Eligible Institution.
 
    If this Letter of Transmittal is signed by a person other than the
registered holder(s) of the certificate(s) listed, the certificate(s) must be
endorsed or accompanied by appropriate stock powers, in either case signed
exactly as the name(s) of the registered holder(s) appear on the certificate(s).
Signatures on such certificates or stock powers must be guaranteed by an
Eligible Institution.
 
    Unless and until the Purchaser declares the Rights Condition to be
satisfied, if Rights Certificates have been distributed to holders of Shares,
such holders are required to tender Rights Certificate(s) representing a number
of Rights equal to the number of Shares tendered in order to effect a valid
tender of such Shares. It is necessary that shareholders follow all signature
requirements of this Instruction 5 with respect to the Rights in order to tender
such Rights.
<PAGE>
    6.  STOCK TRANSFER TAXES.  Except as provided in this Instruction 6, the
Purchaser will pay any stock transfer taxes with respect to the transfer and
sale of Shares and Rights to it or its order pursuant to the Offer. If, however,
payment of the purchase price is to be made to, or if certificate(s) for Shares
and Rights not tendered or accepted for payment are to be registered in the name
of, any person other than the registered holder(s), or if tendered
certificate(s) are registered in the name of any person other than the person(s)
signing this Letter of Transmittal, the amount of any stock transfer taxes
(whether imposed on the registered holder(s) or such person) payable on account
of the transfer to such person will be deducted from the purchase price unless
satisfactory evidence of the payment of such taxes or an exemption therefrom, is
submitted.
 
    Except as provided in this Instruction 6, it will not be necessary for
transfer tax stamps to be affixed to the Share Certificates evidencing the
Shares tendered hereby.
 
    7.  SPECIAL PAYMENT AND DELIVERY INSTRUCTIONS.  If a check is to be issued
in the name of, and/or certificates for Shares and Rights not tendered or not
accepted for payment are to be issued or returned to, a person other than the
signer of this Letter of Transmittal or to an address other than that shown in
this Letter of Transmittal, the appropriate boxes on this Letter of Transmittal
must be completed. A Book-Entry Shareholder may request that Shares and/or
Rights not accepted for payment be credited to such account maintained at a
Book-Entry Transfer Facility as such Book-Entry Shareholder may designate under
"Special Payment Instructions". If no such instructions are given, such Shares
or Rights not accepted for payment will be returned by crediting the account of
the Book-Entry Transfer Facility designated above.
 
    8.  WAIVER OF CONDITIONS.  The conditions of the Offer may be waived by the
Purchaser in whole or in part at any time and from time to time in its sole
discretion.
 
    9.  REQUESTS FOR ASSISTANCE OR ADDITIONAL COPIES.  Questions or requests for
assistance may be directed to the Dealer Manager or the Information Agent at
their respective addresses and telephone numbers set forth below. Additional
copies of the Offer to Purchase, this Letter of Transmittal and the Notice of
Guaranteed Delivery may also be obtained from the Information Agent or from
brokers, dealers, commercial banks or trust companies.
 
    10.  LOST, DESTROYED OR STOLEN CERTIFICATES.  If any certificate
representing Shares or Rights has been lost, destroyed or stolen, the
shareholder should promptly notify the Information Agent. The shareholder will
then be instructed as to the steps that must be taken in order to replace the
certificate. This Letter of Transmittal and related documents cannot be
processed until the procedures for replacing lost or destroyed certificates have
been followed.
 
    11.  SUBSTITUTE FORM W-9.  Each tendering shareholder is required to provide
the Depositary with a correct Taxpayer Identification Number ("TIN") on the
Substitute Form W-9 which is provided below, and to certify, under penalties of
perjury, that such number is correct and that such shareholder is not subject to
backup withholding of federal income tax. If a tendering shareholder has been
notified by the Internal Revenue Service that such shareholder is subject to
backup withholding, such shareholder must cross out item (2) of the
Certification box of the Substitute Form W-9, unless such shareholder has since
been notified by the Internal Revenue Service that such shareholder is no longer
subject to backup withholding. Failure to provide the information on the
Substitute Form W-9 may subject the tendering shareholder to 31% federal income
tax withholding on the payment of the purchase price of all Shares purchased
from such shareholder. If the tendering shareholder has not been issued a TIN
and has applied for one or intends to apply for one in the near future, such
shareholder should write "Applied For" in the space provided for the TIN in Part
I of the Substitute Form W-9, and sign and date the Substitute Form W-9 and sign
the certification provided below. If "Applied For" is written in Part I and the
Depositary is not provided with a TIN by the time of payment, the Depositary
will withhold 31% on all payments of the purchase price to such shareholder
until a TIN is provided to the Depositary. See Sections 3 and 5 of the Offer to
Purchase.
 
    IMPORTANT: THIS LETTER OR TRANSMITTAL (OR A FACSIMILE HEREOF), TOGETHER WITH
CERTIFICATES OR CONFIRMATION OF BOOK-ENTRY TRANSFER OR THE NOTICE OF GUARANTEED
DELIVERY, AND ALL OTHER REQUIRED DOCUMENTS, MUST BE RECEIVED BY THE DEPOSITARY
PRIOR TO THE EXPIRATION DATE.
<PAGE>
            ALL TENDERING SHAREHOLDERS MUST COMPLETE THE FOLLOWING:
                PAYER'S NAME: IBJ SCHRODER BANK & TRUST COMPANY
 
<TABLE>
<S>                                   <C>                                         <C>
 
SUBSTITUTE                            PART I--Taxpayer Identification Number--
FOR ALL ACCOUNTS                      Enter taxpayer identification number in             Social Security Number or
FORM W-9                              the box at right. (For most individuals,          Employer Identification Number
                                      this is your social security number. If
                                      you do not have a number, see Obtaining a
                                      Number in the enclosed Guidelines.)
                                      Certify by signing and dating below. Note:
                                      If the account is in more than one name,
                                      see the chart in the enclosed Guidelines
                                      to determine which number to give the
                                      payer.
 
DEPARTMENT OF THE                     PART II--For Payees Exempt From Backup Withholding, see the enclosed Guidelines and
TREASURY                              complete as instructed therein.
INTERNAL REVENUE                      CERTIFICATION--Under penalties of perjury, I certify that:
SERVICE                               (1)  The number shown on this form is my correct Taxpayer Identification Number (or I
                 OR                   am waiting for a number to be issued to me), and
PAYER'S REQUEST                       (2)  I am not subject to backup withholding either because I have not been notified by
FOR TAXPAYER                          the Internal Revenue Service (the "IRS") that I am subject to backup withholding as a
IDENTIFICATION                             result of failure to report all interest or dividends, or the IRS has notified me
NUMBER ("TIN")                             that I am no longer subject to backup withholding.
                                      CERTIFICATE INSTRUCTIONS--You must cross out item (2) above if you have been notified
                                      by the IRS that you are subject to backup withholding because of underreporting
                                      interest or dividends on your tax return. However, if after being notified by the IRS
                                      that you were subject to backup withholding you received another notification from the
                                      IRS that you are no longer subject to backup withholding, do not cross out item (2).
                                      (Also see instructions in the enclosed Guidelines.)
                           SIGN HERE  SIGNATURE:                                    DATE:         , 1997
 
                                 -->
</TABLE>
 
NOTE:  FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP WITHHOLDING
       OF 31% OF ANY PAYMENTS MADE TO YOU PURSUANT TO THE OFFER. PLEASE REVIEW
       THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
       NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.
 
     YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU WROTE "APPLIED FOR"
      IN THE SPACE PROVIDED FOR THE TIN IN PART I OF SUBSTITUTE FORM W-9.
 
             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
 
    I certify under penalties of perjury that a taxpayer identification number
has not been issued to me, and either (1) I have mailed or delivered an
application to receive a taxpayer identification number to the appropriate
Internal Revenue Service Center or Social Security Administration Office, or (2)
I intend to mail or deliver an application in the near future. I understand that
if I do not provide a taxpayer identification number by the time of payment, 31%
of all reportable payments made to me will be withheld.
 
Signature_____________________________    Date____________________________, 1997
<PAGE>
                    THE INFORMATION AGENT FOR THE OFFER IS:
 
                        [MACKENZIE PARTNERS, INC. LOGO]
 
                                156 Fifth Avenue
                            New York, New York 10010
                         (212) 929-5500 (call collect)
                                       or
                         CALL TOLL-FREE (800) 322-2885
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                              SALOMON BROTHERS INC
 
                            Seven World Trade Center
             New York, New York 10048 (212) 783-6592 (Call Collect)
 
    April 4, 1997

<PAGE>
                         NOTICE OF GUARANTEED DELIVERY
                                       TO
                         TENDER SHARES OF COMMON STOCK
           (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS)
                                       OF
                         HEALTHDYNE TECHNOLOGIES, INC.
                                       TO
                                  I.H.H. CORP.
                          A WHOLLY OWNED SUBSIDIARY OF
                              INVACARE CORPORATION
 
    As set forth in Section 3 of the Offer to Purchase described below, this
instrument or one substantially equivalent hereto must be used to accept the
Offer (as defined below) if certificates for Shares (as defined below) or the
associated Preferred Stock Purchase Rights (the "Rights") are not immediately
available or the certificates for Shares or Rights and all other required
documents cannot be delivered to the Depositary prior to the Expiration Date (as
defined in Section 1 of the Supplement described below) or if the procedure for
delivery by book-entry transfer cannot be completed on a timely basis. This
instrument may be delivered by hand or transmitted by facsimile transmission or
mail to the Depositary.
 
                        THE DEPOSITARY FOR THE OFFER IS:
                       IBJ SCHRODER BANK & TRUST COMPANY
 
<TABLE>
<CAPTION>

          BY MAIL:              BY FACSIMILE TRANSMISSION:     BY HAND OR OVERNIGHT DELIVERY:
 
<S>                            <C>                            <C>
         P.O. Box 84                  (212) 858-2611                One State Street
    Bowling Green Station          Attn: Reorganization         New York, New York 10004
     New York, New York            Operations Department       Attn: Securities Processing
         10274-0084                                               Window, Subcellar One
    Attn: Reorganization           CONFIRM FACSIMILE BY
    Operations Department               TELEPHONE:
                                      (212) 858-2103
</TABLE>
 
    DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE OR
TRANSMISSION OF INSTRUCTIONS VIA FACSIMILE TRANSMISSION OTHER THAN AS SET FORTH
ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.
 
    This form is not to be used to guarantee signatures. If a signature on a
Letter of Transmittal is required to be guaranteed by an Eligible Institution
under the instructions thereto, such signature guarantee must appear in the
applicable space provided in the signature box in the Letter of Transmittal.
 
<PAGE>
Ladies and Gentlemen:
 
    The undersigned hereby tender(s) to I.H.H. Corp., a Delaware corporation and
a wholly owned subsidiary of Invacare Corporation, an Ohio corporation, upon the
terms and subject to the conditions set forth in the Offer to Purchase, dated
January 27, 1997 (the "Offer to Purchase"), as amended and supplemented by the
Supplement thereto dated April 4, 1997 (the "Supplement"), and in the revised
Letter of Transmittal (which, as amended from time to time, together constitute
the "Offer"), receipt of which is hereby acknowledged, the number of shares of
Common Stock, par value $0.01 per share (the "Shares"), and the number of
Rights, indicated below of Healthdyne Technologies, Inc., a Georgia corporation,
pursuant to the guaranteed delivery procedure set forth in Section 3 of the
Offer to Purchase.
 
Signature(s)....................................................................
 
Name(s) of Record Holders
 
 ...............................................................................
 
                              PLEASE TYPE OR PRINT
 
Number of Shares and Rights ....................................................
 
Certificate Nos. (If Available)
 
 ...............................................................................
 
 ...............................................................................
 
Dated ..........................................................................
                                      , 1997
 
Address(es).....................................................................
 
 ...............................................................................
 
                                                                        ZIP CODE
 
Area Code(s) and Tel. No(s) ....................................................
 
Check one box (if Shares and Rights will be tendered by book-entry transfer):
 
/ /    The Depository Trust Company
 
/ /    Philadelphia Depository Trust Company
 
Account Number .................................................................
 
 ...............................................................................
 
                                   GUARANTEE
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)
 
    The undersigned, a firm which is a bank, broker, dealer, credit union,
savings association or other entity which is a member in good standing of the
Securities Transfer Agents Medallion Program, the New York Stock Exchange
Medallion Signature Guarantee Program or the Stock Exchange Medallion Program,
hereby (a) represents that the above named person(s) "own(s)" the Shares and/or
Rights tendered hereby within the meaning of Rule 14e-4 under the Securities
Exchange Act of 1934, as amended ("Rule 14e-4"), (b) represents that such tender
of Shares complies with Rule 14e-4, (c) guarantees to deliver to the Depositary
either the certificates evidencing all tendered Shares, in proper form for
transfer, or to deliver Shares pursuant to the procedure for book-entry transfer
into the Depositary's account at the Depository Trust Company or the
Philadelphia Depository Trust Company (each, a "Book-Entry Transfer Facility"),
in either case together with the Letter of Transmittal (or a facsimile thereof),
properly completed and duly executed, with any required signature guarantees or
an Agent's Message (as defined in the Offer to Purchase) in the case of a
book-entry delivery, and any other required documents, all within three Nasdaq
National Market trading days after the date hereof and (d) guarantees, if
applicable, to deliver certificates representing the Rights ("Rights
Certificates") in proper form for transfer, or to deliver such Rights pursuant
to the procedure for book-entry transfer into the Depositary's account at a
Book-Entry Transfer Facility together with, if Rights are forwarded separately,
the Letter of Transmittal (or a facsimile thereof), properly completed and duly
executed with any required signature guarantees or an Agent's Message (as
defined in the Offer to Purchase) in the case of a book-entry delivery, and any
other required documents, all within the later of (1) three Nasdaq National
Market trading days after the date hereof and (2) three business days after the
date the Rights Certificates are distributed to holders of Shares.
 
<TABLE>
<S>                                            <C>
- --------------------------------------------   --------------------------------------------
                  NAME OF FIRM                 AUTHORIZED SIGNATURE
 
                                               Name
- ---------------------------------------------  --------------------------------------------
                       ADDRESS                            PLEASE TYPE OR PRINT
 
                                               Title
- ---------------------------------------------  --------------------------------------------
                           ZIP CODE                       AUTHORIZED SIGNATURE
 

AREA CODE AND TEL NO.   Dated                          , 1997
                               -----------------------
</TABLE>
 
NOTE:  DO NOT SEND CERTIFICATES FOR SHARES OR RIGHTS WITH THIS NOTICE.
        CERTIFICATES SHOULD BE SENT WITH YOUR LETTER OF TRANSMITTAL.

<PAGE>
                                                         --------------------
 
                                                             SALOMON BROTHERS
                                                            --------------------
                                  I.H.H. CORP.
                          A WHOLLY OWNED SUBSIDIARY OF
                              INVACARE CORPORATION
                         HAS INCREASED THE PRICE OF ITS
                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
           (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS)
                                       OF
                         HEALTHDYNE TECHNOLOGIES, INC.
                                       TO
                              $13.50 NET PER SHARE
 
<TABLE>
<CAPTION>
<S>       <C>
THE OFFER HAS BEEN EXTENDED. THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 6:00 P.M.,
NEW YORK CITY TIME, ON MONDAY, APRIL 28, 1997, UNLESS THE OFFER IS FURTHER EXTENDED.
</TABLE>

                                                                   April 4, 1997
 
To Brokers, Dealers, Commercial Banks,
  Trust Companies and Other Nominees:
 
    We have been appointed by I.H.H. Corp., a Delaware corporation (the
"Purchaser") and a wholly owned subsidiary of Invacare Corporation, an Ohio
corporation (the "Parent"), to act as Dealer Manager in connection with the
Purchaser's offer to purchase all outstanding shares of Common Stock, par value
$0.01 per share (the "Shares"), of Healthdyne Technologies, Inc., a Georgia
corporation (the "Company"), and (unless and until the Purchaser declares that
the Rights Condition (as defined in the Offer to Purchase) is satisfied) the
associated Preferred Stock Purchase Rights (the "Rights") issued pursuant to the
Rights Agreement, dated as of May 22, 1995, as amended (the "Rights Agreement"),
between the Company and SunTrust Bank, Atlanta (formerly Trust Company Bank), as
Rights Agent, at an increased price of $13.50 per Share (and associated Right),
net to the seller in cash without interest thereon, upon the terms and subject
to the conditions set forth in the Offer to Purchase, dated January 27, 1997
(the "Offer to Purchase"), as amended and supplemented by the Supplement thereto
dated April 4, 1997 (the "Supplement"), and in the revised Letter of Transmittal
(which, as amended from time to time, together constitute the "Offer") enclosed
herewith. Unless and until the Purchaser declares that the Rights Condition is
satisfied, holders of Shares will be required to tender one Right for each Share
tendered in order to effect a valid tender of such Share. If the Distribution
Date (as defined in the Offer to Purchase) has not occurred prior to the time
Shares are tendered pursuant to the Offer, a tender of Shares will constitute a
tender of the associated Rights. If the Distribution Date has occurred and the
certificates representing such Rights ("Rights Certificates") have been
distributed by the Company to holders of Shares, such holders of Shares shall be
required to tender Rights Certificates representing a number of Rights equal to
the number of Shares being tendered in order to effect valid tender of such
Shares. Holders of Shares and Rights whose certificates for such Shares (the
"Share Certificates") and, if applicable, Rights Certificates are not
immediately available or who cannot deliver their Share Certificates or, if
applicable, their Rights Certificates, and all other required documents to the
Depositary (as defined below) prior to the Expiration Date (as defined in the
Supplement), or who cannot complete the
<PAGE>
procedures for book-entry transfer on a timely basis, must tender their Shares
and Rights according to the guaranteed delivery procedures set forth in Section
3 of the Offer to Purchase. Unless the context otherwise requires, all
references to Shares shall include the associated Rights, and all references to
Rights shall include all benefits that may inure to holders of Rights pursuant
to the Rights Agreement.
 
    Please furnish copies of the enclosed materials to those of your clients for
whose accounts you hold Shares registered in your name or in the name of your
nominee.
 
    The Offer is conditioned upon, among other things: (1) the Purchaser being
satisfied, in its sole discretion, that there have been validly tendered and not
properly withdrawn prior to the expiration of the Offer that number of Shares
which, when added to the 600,000 Shares beneficially owned by the Purchaser and
its affiliates, would constitute at least 51% of the voting power (determined on
a fully diluted basis) on the date of purchase of all securities of the Company
entitled to vote generally in the election of directors and in a merger; (2) the
Purchaser being satisfied, in its sole discretion, that the Rights have been
redeemed by the Company's Board of Directors or that such Rights have been
invalidated or are otherwise inapplicable to, or that the dilutive provisions
thereof would not be triggered by, the Offer or the proposed Merger (as defined
in the Offer to Purchase); (3) the Purchaser being satisfied, in its sole
discretion, that the restrictions on business combinations contained in Sections
14-2-1131 through 14-2-1133 of the Georgia Business Corporation Code (the
"GBCC") would not apply to the Purchaser or the Parent in connection with the
Offer or the proposed Merger (as a result of action by the Company's Board of
Directors, the ownership by the Purchaser and its affiliates upon consummation
of the Offer of at least 90% of the outstanding voting stock of the Company
(other than shares held by directors, officers and certain employee stock plans
of the Company) or otherwise); and (4) the Puchaser being satisfied, in its sole
discretion, that the restrictions on business combinations contained in Sections
14-2-1110 through 14-2-1113 of the GBCC would not apply to the Purchaser or the
Parent in connection with the Offer or the proposed Merger or are invalid (in
either case, as a result of action by the Company's Board of Directors, judicial
action or otherwise) or that the proposed Merger may be consummated without any
approval required under such Sections of the GBCC at a price per Share not in
excess of the price per Share to be paid in the Offer. The Offer is also subject
to other terms and conditions. See the Introduction and Sections 1 and 14 of the
Offer to Purchase and the Supplement. The Offer is not conditioned on the
receipt of financing.
 
    Enclosed herewith for your information and forwarding to your clients are
copies of the following documents:
 
        1.  A letter to Healthdyne shareholders from A. Malachi Mixon, III,
    Chairman and Chief Executive Officer of the Parent.
 
        2.  The Supplement dated April 4, 1997.
 
        3.  The GREEN revised Letter of Transmittal to tender Shares for your
    use and for the information of your clients. Facsimile copies of the Letter
    of Transmittal may be used to tender Shares.
 
        4.  The GOLD revised Notice of Guaranteed Delivery for Shares and Rights
    to be used to accept the Offer if Share Certificates or Rights Certificates
    are not immediately available or if such certificates and all other required
    documents cannot be delivered to IBJ Schroder Bank & Trust Company (the
    "Depositary") by the Expiration Date or if the procedure for book-entry
    transfer cannot be completed by the Expiration Date.
 
        5.  A GRAY printed form of letter which may be sent to your clients for
    whose accounts you hold Shares registered in your name or in the name of
    your nominee, with space provided for obtaining such clients' instructions
    with regard to the Offer.
 
        6.  Guidelines of the Internal Revenue Service for Certification of
    Taxpayer Identification Number on Substitute Form W-9.
 
                                       2
<PAGE>
        7.  A return envelope addressed to IBJ Schroder Bank & Trust Company,
    the Depositary.
 
    YOUR PROMPT ACTION IS REQUESTED. WE URGE YOU TO CONTACT YOUR CLIENTS AS
PROMPTLY AS POSSIBLE. PLEASE NOTE THAT THE OFFER AND WITHDRAWAL RIGHTS EXPIRE AT
6:00 P.M., NEW YORK CITY TIME, ON MONDAY, APRIL 28, 1997, UNLESS THE OFFER IS
FURTHER EXTENDED.
 
    In order to take advantage of the Offer, (i) a duly executed and properly
completed Letter of Transmittal and any required signature guarantees, or an
Agent's Message (as defined in the Offer to Purchase) in connection with a
book-entry delivery of Shares or Rights, and any other required documents should
be sent to the Depositary, and (ii) either Share Certificates, and if
applicable, Rights Certificates, representing the tendered Shares (and, if
applicable, tendered Rights) should be delivered to the Depositary, or such
Shares (and, if applicable, tendered Rights) should be tendered by book-entry
transfer into the Depositary's account maintained at one of the Book-Entry
Transfer Facilities (as described in the Offer to Purchase), all in accordance
with the instructions set forth in the Letter of Transmittal and the Offer to
Purchase.
 
    While the Letter of Transmittal previously circulated with the Offer to
Purchase refers only to the Offer to Purchase, shareholders using such document
to tender their Shares will nevertheless receive $13.50 per Share for each Share
validly tendered and not properly withdrawn and accepted for payment pursuant to
the Offer, subject to the conditions of the Offer.
 
    If holders of Shares wish to tender, but it is impracticable for them to
forward their Share Certificates or, if applicable, Rights Certificates, or
other required documents on or prior to the Expiration Date or to comply with
the book-entry transfer procedures on a timely basis, a tender may be effected
by following the guaranteed delivery procedures specified in Section 3 of the
Offer to Purchase.
 
    The Purchaser will not pay any fees or commissions to any broker, dealer or
any other person (other than the Dealer Manager and MacKenzie Partners, Inc.
(the "Information Agent") (as described in the Offer to Purchase)) for
soliciting tenders of Shares pursuant to the Offer. The Purchaser will, however,
upon request, reimburse you for customary mailing and handling expenses incurred
by you in forwarding any of the enclosed materials to your customers. The
Purchaser will pay or cause to be paid any stock transfer taxes payable on the
transfer of Shares to it, except as otherwise provided in Instruction 6 of the
Letter of Transmittal.
 
    Any inquiries you may have with respect to the Offer should be addressed to
Salomon Brothers Inc, the Dealer Manager, or the Information Agent, at their
respective addresses and telephone numbers set forth on the back cover page of
the Supplement. Additional copies of the enclosed materials and the Offer to
Purchase may be obtained from the Information Agent.
 
                                          Very truly yours,
 
                                          SALOMON BROTHERS INC
 
NOTHING CONTAINED HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL CONSTITUTE YOU OR
ANY OTHER PERSON THE AGENT OF THE PARENT, THE PURCHASER, THE COMPANY, THE
DEPOSITARY, THE INFORMATION AGENT OR THE DEALER MANAGER, OR ANY AFFILIATE OF
THEM, OR AUTHORIZE YOU OR ANY OTHER PERSON TO USE ANY DOCUMENTS OR MAKE ANY
STATEMENT ON BEHALF OF ANY OF THEM IN CONNECTION WITH THE OFFER OTHER THAN THE
ENCLOSED DOCUMENTS AND THE STATEMENTS CONTAINED THEREIN.
 
                                       3

<PAGE>
                                  I.H.H. CORP.
                          A WHOLLY OWNED SUBSIDIARY OF
                              INVACARE CORPORATION
                         HAS INCREASED THE PRICE OF ITS
                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
           (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS)
                                       OF
                         HEALTHDYNE TECHNOLOGIES, INC.
                                       TO
                              $13.50 NET PER SHARE

<TABLE>
<CAPTION>
<S>       <C> 
THE OFFER HAS BEEN EXTENTED. THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 6:00 P.M.,
NEW YORK CITY TIME, ON MONDAY, APRIL 28, 1997, UNLESS THE OFFER IS FURTHER EXTENDED.
</TABLE>
                                                                   April 4, 1997
 
TO OUR CLIENTS:
 
    Enclosed for your consideration is a Supplement dated April 4, 1997 (the
"Supplement") to the Offer to Purchase, dated January 27, 1997 (the "Offer to
Purchase"), and the revised Letter of Transmittal relating to an offer by I.H.H.
Corp., a Delaware corporation (the "Purchaser") and a wholly owned subsidiary of
Invacare Corporation, an Ohio corporation (the "Parent"), to purchase all of the
outstanding shares of Common Stock, par value $0.01 per share (the "Shares"), of
Healthdyne Technologies, Inc., a Georgia corporation (the "Company"), and
(unless and until the Purchaser declares that the Rights Condition (as defined
in the Offer to Purchase) is satisfied) the associated Preferred Stock Purchase
Rights (the "Rights") issued pursuant to the Rights Agreement, dated as of May
22, 1995, as amended (the "Rights Agreement"), between the Company and SunTrust
Bank, Atlanta (formerly Trust Company Bank), as Rights Agent, at an increased
price of $13.50 per Share (and associated Right), net to the seller in cash
without interest thereon, upon the terms and subject to the conditions set forth
in the Offer to Purchase, as amended and supplemented by the Supplement, and in
the revised Letter of Transmittal (which, as amended from time to time, together
constitute the "Offer"). Unless the context requires otherwise, all references
to "Shares" shall be deemed to refer also to the associated Rights, and all
references to Rights shall be deemed to include all benefits that may inure to
the shareholders of the Company or to the holders of the Rights pursuant to the
Rights Agreement. We are the holder of record of Shares held by us for your
account. A tender of such Shares can be made only by us as the holder of record
and pursuant to your instructions. The Letter of Transmittal is furnished to you
for your information only and cannot be used by you to tender Shares held by us
for your account.
 
    Unless and until the Purchaser declares that the Rights Condition is
satisfied, holders of Shares will be required to tender a number of Rights equal
the number of Shares being tendered in order to effect a valid tender of such
Shares. Based on the Company's filings with the Securities and Exchange
Commission (the "Commission"), until the Distribution Date (as defined in the
Supplement), the surrender for transfer of any of the certificates representing
Shares (the "Share Certificates") will also constitute the surrender for
transfer of the Rights associated with the Shares represented by such Share
Certificates. Based on the Company's filings with the Commission, as soon as
practicable following the Distribution Date, separate certificates representing
the Rights ("Rights Certificates") will be mailed to holders of record of Shares
as of the close of business on the Distribution Date; after the Distribution
Date, such separate Rights Certificates alone will evidence the Rights. See
Section 3 of the Offer to Purchase.
<PAGE>
    We request instructions as to whether you wish to have us tender on your
behalf any or all of such Shares held by us for your account, pursuant to the
terms and subject to the conditions set forth in the Offer to Purchase, as
amended and supplemented by the Supplement. Your instructions to tender Shares
held by us for your account will also constitute a direction to us to tender a
number of Rights held by us for your account equal to the number of Shares
tendered.
 
    Your attention is invited to the following:
 
        1.  The tender price is $13.50 per share, net to the seller in cash
    without interest thereon.
 
        2.  The Offer is made for all of the outstanding Shares.
 
        3.  The Offer and withdrawal rights will expire at 6:00 p.m., New York
    City time, on Monday, April 28, 1997, unless the Offer is extended.
 
        4.  The Offer is conditioned upon, among other things: (1) the Purchaser
    being satisfied, in its sole discretion, that there have been validly
    tendered and not properly withdrawn prior to the expiration of the Offer
    that number of Shares which, when added to the Shares beneficially owned by
    the Purchaser and its affiliates, would constitute at least 51% of the
    voting power (determined on a fully diluted basis) on the date of purchase
    of all securities of the Company entitled to vote generally in the election
    of directors and in a merger; (2) the Purchaser being satisfied, in its sole
    discretion, that the Rights have been redeemed by the Company's Board of
    Directors or that such Rights have been invalidated or are otherwise
    inapplicable to, or that the dilutive provisions thereof would not be
    triggered by, the Offer or the proposed Merger (as defined in the Offer to
    Purchase); (3) the Purchaser being satisfied, in its sole discretion, that
    the restrictions on business combinations contained in Sections 14-2-1131
    through 14-2-1133 of the Georgia Business Corporation Code (the "GBCC")
    would not apply to the Purchaser or the Parent in connection with the Offer
    or the proposed Merger (as a result of action by the Company's Board of
    Directors, the ownership by the Purchaser and its affiliates upon
    consummation of the Offer of at least 90% of the outstanding voting stock of
    the Company (other than Shares held by directors, officers and certain
    employee stock plans of the Company) or otherwise); and (4) the Purchaser
    being satisfied, in its sole discretion, that the restrictions on business
    combinations contained in Sections 14-2-1110 through 14-2-1113 of the GBCC
    would not apply to the Purchaser or the Parent in connection with the Offer
    or the proposed Merger or are invalid (in either case, as a result of action
    by the Company's Board of Directors, judicial action or otherwise) or that
    the proposed Merger may be consummated without any approval required under
    such Sections of the GBCC at a price per Share not in excess of the price
    per Share to be paid in the Offer. The Offer is also subject to other terms
    and conditions. See the Introduction and Sections 1 and 14 of the Offer to
    Purchase and the Supplement. The Offer is not conditioned on the receipt of
    financing.
 
        5.  Tendering shareholders will not be obligated to pay brokerage fees
    or commissions or, except as set forth in Instruction 6 of the Letter of
    Transmittal, stock transfer taxes on the purchase of Shares pursuant to the
    Offer.
 
    The Offer is being made solely by the Offer to Purchase, the Supplement and
the revised Letter of Transmittal and is being made to all holders of all
Shares. The Offer is not being made to (nor will tenders be accepted from or on
behalf of) holders of Shares in any jurisdiction in which the making of the
Offer or the acceptance thereof would not be in compliance with the securities,
blue sky or other laws of such jurisdiction or any administrative or judicial
action pursuant thereto. However, the Purchaser may in its discretion take such
actions as it may deem necessary to make the Offer in any jurisdiction and
extend the Offer to holders of Shares in such jurisdiction. In those
jurisdictions where securities, blue sky or other laws require the Offer to be
made by a licensed broker or dealer, the Offer shall be deemed to be made on
behalf of the Purchaser by Salomon Brothers Inc, the Dealer Manager, or one more
registered brokers or dealers that are licensed under the laws of such
jurisdiction.
 
                                       2
<PAGE>
    If you wish to have us tender any or all of the Shares held by us for your
account, please instruct us by completing, executing and returning to us the
instruction form contained in this letter. If you authorize a tender of your
Shares, all such Shares will be tendered unless otherwise specified in such
instruction form. Your instructions should be forwarded to us in ample time to
permit us to submit a tender on your behalf prior to the expiration of the
Offer.
 
    Shareholders who have previously validly tendered and not properly withdrawn
their Shares pursuant to the Offer are not required to take any further action
in order to receive the increased price of $13.50 net per Share pursuant to the
amended Offer, except as may be required by the guaranteed delivery procedure if
such procedure was utilized. If Shares are accepted for payment and paid for by
the Purchaser pursuant to the Offer, such shareholders will receive, subject to
the conditions of the Offer, the increased tender price of $13.50 per Share. See
Section 4 of the Offer to Purchase for the procedures for withdrawing Shares
tendered pursuant to the Offer.
 
                                       3
<PAGE>
          INSTRUCTIONS WITH RESPECT TO THE OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
           (INCLUDING THE ASSOCIATED PREFERRED STOCK PURCHASE RIGHTS)
                                       OF
                         HEALTHDYNE TECHNOLOGIES, INC.
 
    The undersigned acknowledge(s) receipt of your letter and the Offer to
Purchase, dated January 27, 1997 (the "Offer to Purchase"), the Supplement
thereto dated April 4, 1997 (the "Supplement") and the revised Letter of
Transmittal in connection with the offer by I.H.H. Corp., a Delaware corporation
(the "Purchaser") and a wholly owned subsidiary of Invacare Corporation, an Ohio
corporation, to purchase all outstanding shares of Common Stock, par value $0.01
per share (the "Shares"), of Healthdyne Technologies, Inc., a Georgia
corporation, and (unless and until the Purchaser declares that the Rights
Condition (as defined in the Offer to Purchase) is satisfied) the associated
Preferred Stock Purchase Rights (the "Rights").
 
    This will instruct you to tender the number of Shares and Rights indicated
below (or, if no number is indicated below, all Shares and Rights) held by you
for the account of the undersigned, upon the terms and subject to the conditions
set forth in the Offer to Purchase, as amended and supplemented by the
Supplement, and in the related Letter of Transmittal furnished to the
undersigned.
 
<TABLE>
<S>                                                   <C>
Number of Shares (and Rights) to be                   SIGN HERE
Tendered*                                             ....................................................
 ................................ Shares (and Rights)  ....................................................
Dated............................................. ,  Signature(s)
1997                                                  ....................................................
                                                      Please print names(s)
                                                      ....................................................
                                                      Address
                                                      ....................................................
                                                      Area Code and Telephone Number
                                                      ....................................................
                                                      Taxpayer Identification or Social Security Number
</TABLE>
 
- ------------------------
 
*   Unless otherwise indicated, it will be assumed that all of your Shares (and
    Rights) held by us for your account are to be tendered.
 
                                       4

<PAGE>
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
 
    GUIDELINES FOR DETERMINING THE PROPER IDENTIFICATION NUMBER TO GIVE THE
PAYER. -- Social Security numbers have nine digits separated by two hyphens:
i.e., 000-00-0000. Employer identification numbers have nine digits separated by
only one hyphen: i.e., 00-0000000. The table below will help determine the
number to give the payer.
<TABLE>
<CAPTION>
- -----------------------------------------------------
                                 GIVE THE
                                 SOCIAL SECURITY
FOR THIS TYPE OF ACCOUNT:        NUMBER OF --
- -----------------------------------------------------
<S>        <C>                   <C>
1.         An individual's       The individual
           account
2.         Two or more           The actual owner of
           individuals (joint    the account or, if
           account)              combined funds, any
                                 one of the
                                 individuals(1)
3.         Husband and wife      The actual owner of
           (joint account)       the account or, if
                                 joint funds, either
                                 person(1)
4.         Custodian account of  The minor(2)
           a minor (Uniform
           Gift to Minors Act)
5.         Adult and minor       The adult or, if the
           (joint account)       minor is the only
                                 contributor, the
                                 minor(1)
6.         Account in the name   The ward, minor, or
           of guardian or        incompetent
           committee for a       person(3)
           designated ward,
           minor, or
           incompetent person
7.         a. The usual          The
              revocable savings  grantor-trustee(1)
              trust account
              (grantor is also
              trustee)
           b. So-called trust
              account that is    The actual owner(1)
              not a legal or
              valid trust under
              State law
8.         Sole proprietorship   The owner(4)
           account
- -----------------------------------------------------
 
<CAPTION>
                                 GIVE THE EMPLOYER
                                 IDENTIFICATION
FOR THIS TYPE OF ACCOUNT:        NUMBER OF --
<S>        <C>                   <C>
- -----------------------------------------------------
9.         A valid trust,        The legal entity (Do
           estate, or pension    not furnish the
           trust                 identifying number
                                 of the personal
                                 representative or
                                 trustee unless the
                                 legal entity itself
                                 is not designated in
                                 the account
                                 title.)(5)
10.        Corporate account     The corporation
11.        Religious,            The organization
           charitable, or
           educational
           organization account
12.        Partnership account   The partnership
           held in the name of
           the business
13.        Association, club or  The organization
           other tax-exempt
           organization
14.        A broker or           The broker or
           registered nominee    nominee
15.        Account with the      The public entity
           Department of
           Agriculture in the
           name of a public
           entity (such as a
           State or local
           government, school
           district, or prison)
           that receives
           agricultural program
           payments
</TABLE>
 
- ---------------------------------------------
- ---------------------------------------------
 
(1) List first and circle the name of the person whose number you furnish.
(2) Circle the minor's name and furnish the minor's social security number.
(3) Circle the ward's, minor's or incompetent person's name and furnish such
    person's social security number.
(4) Show the name of the owner.
(5) List first and circle the name of the legal trust, estate, or pension trust.
 
NOTE: If no name is circled when there is more than one name, the number will be
      considered to be that of the first name listed.
<PAGE>
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
                                     PAGE 2
 
OBTAINING A NUMBER
 
If you don't have a taxpayer identification number or you don't know your
number, obtain Form SS-5, Application for a Social Security Number Card, or Form
SS-4, Application for Employer Identification Number, at the local office of the
Social Security Administration or the Internal Revenue Service and apply for a
number.
 
PAYEES EXEMPT FROM BACKUP WITHHOLDING
 
Payees specifically exempted from backup withholding on ALL payments include the
following:
 
    - A corporation.
 
    - A financial institution.
 
    - An organization exempt from tax under section 501(a), or an individual
      retirement plan.
 
    - The United States or any agency or instrumentality thereof.
 
    - A State, the District of Columbia, a possession of the United States, or
      any subdivision or instrumentality thereof.
 
    - A foreign government, a political subdivision of a foreign government, or
      any agency or instrumentality thereof.
 
    - An international organization or any agency or instrumentality thereof.
 
    - A registered dealer in securities or commodities registered in the U.S. or
      a possession of the U.S.
 
    - A real estate investment trust.
 
    - A common trust fund operated by a bank under section 584(a).
 
    - An exempt charitable remainder trust, or a non-exempt trust described in
      section 4947(a)(1).
 
    - An entity registered at all times under the Investment Company Act of
      1940.
 
    - A foreign central bank of issue.
 
    Payments of dividends and patronage dividends not generally subject to
backup withholding include the following:
 
    - Payments to nonresident aliens subject to withholding under section 1441.
 
    - Payments to partnerships not engaged in a trade or business in the U.S.
      and which have at least one nonresident partner.
 
    - Payments of patronage dividends where the amount renewed is not paid in
      money.
 
    - Payments made by certain foreign organizations.
 
    - Payments made to a nominee.
 
    Payments of interest not generally subject to backup withholding include the
following:
 
    - Payments of interest on obligations issued by individuals. NOTE: You may
      be subject to backup withholding if this interest is $600 or more and is
      paid in the course of the payer's trade or business and you have not
      provided your correct taxpayer identification number to the payer.
 
    - Payments of tax-exempt interest (including exempt-interest dividends under
      section 852).
 
    - Payments described in section 6049(b)(5) to non-resident aliens.
 
    - Payments on tax-free covenant bonds under section 1451.
 
    - Payments made by certain foreign organizations.
 
    - Payments made to a nominee.
 
    Exempt payees described above should file Form W-9 to avoid possible
erroneous backup withholding.
 
    FILE THIS FORM WITH THE PAYER, FURNISH YOUR TAXPAYER IDENTIFICATION NUMBER,
WRITE "EXEMPT" ON THE FACE OF THE FORM, AND RETURN IT TO THE PAYER. IF THE
PAYMENTS ARE INTEREST, DIVIDENDS, OR PATRONAGE DIVIDENDS, ALSO SIGN AND DATE THE
FORM.
 
    Certain payments other than interest, dividends and patronage dividends,
that are not subject to information reporting are also not subject to backup
withholding. For details, see the regulations under sections 6041, 6041A(a),
6045 and 6050A.
 
PRIVACY ACT NOTICE.--Section 6109 requires most recipients of dividend,
interest, or other payments to give taxpayer identification numbers to payers
who must report the payments to IRS. IRS uses the numbers for identification
purposes. Payers must be given the numbers whether or not recipients are
required to file tax returns. Payers must generally withhold 31% of taxable
interest, dividend, and certain other payments to a payee who does not furnish a
taxpayer identification number to a payer. Certain penalties may also apply.
 
PENALTIES.
 
(1) PENALTY FOR FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER.--If you fail
to furnish your taxpayer identification number to a payer, you are subject to a
penalty of $50 for each such failure due to reasonable cause and not to willful
neglect.
 
(2) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDING.--If you
make a false statement with no reasonable basis which results in no imposition
of backup withholding, you are subject to a penalty of $500.
 
(3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION.-- Falsifying certifications or
affirmations may subject you to criminal penalties including fines and/or
imprisonment.
 
FOR ADDITIONAL INFORMATION CONTACT YOUR TAX CONSULTANT OR THE INTERNAL REVENUE
SERVICE.

<PAGE>



                                                                  Execution Copy







                                INVACARE CORPORATION
                                          
                         AND CERTAIN BORROWING SUBSIDIARIES
                                          
                                          
                                          
                                          
                                          
                                   LOAN AGREEMENT
                                          
                           DATED AS OF FEBRUARY 27, 1997
                                          
                                          
                                          
                                          
                     __________________________________________
                                          
                                          
                                          
                                          
                               THE BANKS NAMED HEREIN
                                          
                                        AND
                                          
                                 NBD BANK, AS AGENT
                                          
                     KEYBANK NATIONAL ASSOCIATION, AS CO-AGENT

 

<PAGE>

                                  TABLE OF CONTENTS


ARTICLE                                                                    PAGE


1.  DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

    1.1  Certain Definitions . . . . . . . . . . . . . . . . . . . . . . 1
    1.2  Other Definitions; Rules of Construction. . . . . . . . . . . .12


2.  THE COMMITMENTS AND THE LOANS. . . . . . . . . . . . . . . . . . . .12

    2.1  Commitment of the Banks . . . . . . . . . . . . . . . . . . . .12
    2.2  Effect on Commitments . . . . . . . . . . . . . . . . . . . . .13
    2.3  Termination and Reduction of Commitments. . . . . . . . . . . .13
    2.4  Fees 14
    2.5  Disbursement of Loans . . . . . . . . . . . . . . . . . . . . .14
    2.6  Conditions for First Disbursement . . . . . . . . . . . . . . .16
    2.7  Further Conditions for Disbursement . . . . . . . . . . . . . .17
    2.8  Subsequent Elections as to Borrowings.. . . . . . . . . . . . .17
    2.9  Limitation of Requests and Elections. . . . . . . . . . . . . .18
    2.10 Minimum Amounts; Limitation on Number of Borrowings . . . . . .18
    2.11 Treasury Manager. . . . . . . . . . . . . . . . . . . . . . . .19


3.  PAYMENTS AND PREPAYMENTS OF LOANS. . . . . . . . . . . . . . . . . .19

    3.1  Principal Payments. . . . . . . . . . . . . . . . . . . . . . .19
    3.2  Interest Payments . . . . . . . . . . . . . . . . . . . . . . .20
    3.3  Payment Method. . . . . . . . . . . . . . . . . . . . . . . . .20
    3.4  No Setoff or Deduction. . . . . . . . . . . . . . . . . . . . .21
    3.5  Payment on Non-Business Day; Payment Computations . . . . . . .22
    3.6  Additional Costs. . . . . . . . . . . . . . . . . . . . . . . .22
    3.7  Illegality and Impossibility. . . . . . . . . . . . . . . . . .23
    3.8  Indemnification . . . . . . . . . . . . . . . . . . . . . . . .24
    3.9  Right of Banks to Fund Through Other Offices. . . . . . . . . .24 

                                          i
<PAGE>

ARTICLE                                                                 PAGE

4.  REPRESENTATIONS AND WARRANTIES . . . . . . . . . . . . . . . . . . . . .25

    4.1  Corporate Existence and Power . . . . . . . . . . . . . . . . .25
    4.2  Corporate Authority . . . . . . . . . . . . . . . . . . . . . .25
    4.3  Binding Effect. . . . . . . . . . . . . . . . . . . . . . . . .25
    4.4  Subsidiaries. . . . . . . . . . . . . . . . . . . . . . . . . .25
    4.5  Litigation. . . . . . . . . . . . . . . . . . . . . . . . . . .25
    4.6  Financial Condition . . . . . . . . . . . . . . . . . . . . . .26
    4.7  Use of Loans. . . . . . . . . . . . . . . . . . . . . . . . . .26
    4.8  Consents, Etc.. . . . . . . . . . . . . . . . . . . . . . . . .26
    4.9  Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
    4.10 Title to Properties . . . . . . . . . . . . . . . . . . . . . .27
    4.11 ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
    4.12 Environmental and Safety Matters. . . . . . . . . . . . . . . .27
    4.13 No Material Adverse Change. . . . . . . . . . . . . . . . . . .28
    4.14 Healthdyne Acquisition. . . . . . . . . . . . . . . . . . . . .28

5.  COVENANTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

    5.1  Affirmative Covenants . . . . . . . . . . . . . . . . . . . . .28

         (a)  Preservation of Corporate Existence, Etc.. . . . . . . . .28
         (b)  Compliance with Laws, Etc. . . . . . . . . . . . . . . . .29
         (c)  Maintenance of Properties; Insurance . . . . . . . . . . .29
         (d)  Reporting Requirements . . . . . . . . . . . . . . . . . .29
         (e)  Accounting; Access to Records, Books, Etc. . . . . . . . .31
         (f)  Stamp Taxes. . . . . . . . . . . . . . . . . . . . . . . .31
         (g)  Proceeds from Equity Offering. . . . . . . . . . . . . . .31
         (h)  Further Assurances . . . . . . . . . . . . . . . . . . . .31


    5.2  Negative Covenants. . . . . . . . . . . . . . . . . . . . . . .32

         (a)  Interest Coverage Ratio. . . . . . . . . . . . . . . . . .32
         (b)  Net Worth. . . . . . . . . . . . . . . . . . . . . . . . .32
         (c)  Funded Debt to Total Capitalization. . . . . . . . . . . .32
         (d)  Liens. . . . . . . . . . . . . . . . . . . . . . . . . . .32
         (e)  Merger; Etc. . . . . . . . . . . . . . . . . . . . . . . .33
         (f)  Disposition of Assets, Etc.. . . . . . . . . . . . . . . .33
         (g)  Nature of Business . . . . . . . . . . . . . . . . . . . .34
         (h)  Healthdyne Minority Interest . . . . . . . . . . . . . . .34 

                                          ii

<PAGE>


ARTICLE                                                                 PAGE

6.  DEFAULT    . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

    6.1  Events of Default . . . . . . . . . . . . . . . . . . . . . . .34
    6.2  Remedies. . . . . . . . . . . . . . . . . . . . . . . . . . . .37


7.  THE AGENT AND THE BANKS. . . . . . . . . . . . . . . . . . . . . . .38

    7.1  Appointment and Authorization . . . . . . . . . . . . . . . . .38
    7.2  Agent and Affiliates. . . . . . . . . . . . . . . . . . . . . .38
    7.3  Scope of Agent's Duties . . . . . . . . . . . . . . . . . . . .38
    7.4  Reliance by Agent . . . . . . . . . . . . . . . . . . . . . . .39
    7.5  Default . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
    7.6  Liability of Agent. . . . . . . . . . . . . . . . . . . . . . .39
    7.7  Nonreliance on Agent and Other Banks. . . . . . . . . . . . . .39
    7.8  Indemnification . . . . . . . . . . . . . . . . . . . . . . . .40
    7.9  Resignation of Agent. . . . . . . . . . . . . . . . . . . . . .40
    7.10 Sharing of Payments . . . . . . . . . . . . . . . . . . . . . .41
    7.11 Co-Agent. . . . . . . . . . . . . . . . . . . . . . . . . . . .41


8.  MISCELLANEOUS. . . . . . . . . . . . . . . . . . . . . . . . . . . .42

    8.1  Amendments, Etc.. . . . . . . . . . . . . . . . . . . . . . . .42
    8.2  Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
    8.3  No Waiver By conduct; Remedies Cumulative . . . . . . . . . . .43
    8.4  Reliance on and Survival of Various Provisions. . . . . . . . .43
    8.5  Expenses; Indemnification . . . . . . . . . . . . . . . . . . .44
    8.6  Successors and Assigns. . . . . . . . . . . . . . . . . . . . .44
    8.7  Counterparts. . . . . . . . . . . . . . . . . . . . . . . . . .47
    8.8  Governing Law; Consent to Jurisdiction. . . . . . . . . . . . .47
    8.9  Table of Contents and Headings. . . . . . . . . . . . . . . . .48
    8.10 Construction of Certain Provisions. . . . . . . . . . . . . . .48
    8.11 Integration and Severability. . . . . . . . . . . . . . . . . .48
    8.12 Independence of Covenants . . . . . . . . . . . . . . . . . . .48
    8.13 Interest Rate Limitation. . . . . . . . . . . . . . . . . . . .48
    8.14 Confidentiality . . . . . . . . . . . . . . . . . . . . . . . .48
    8.15 Waiver of Jury Trial. . . . . . . . . . . . . . . . . . . . . .49

                                         iii

<PAGE>


EXHIBITS

    Exhibit A  . . . . . . . . . .Designation of new Borrowing Subsidiary
    Exhibit B-1  . . . . . . . . .Guaranty Agreement of Invacare Corporation
    Exhibit B-2. . . . . . . . . .Subsidiary Guaranty Areement
    Exhibit C  . . . . . . . . . .Revolving Credit Note
    Exhibit D  . . . . . . . . . .Swing Line Note
    Exhibit E  . . . . . . . . . .Request for Loan
    Exhibit F  . . . . . . . . . .Form of Legal Opinion
    Exhibit G  . . . . . . . . . .Request for Continuation or Conversion
                                     Revolving Credit Loan
    Exhibit H  . . . . . . . . . .Assignment and Acceptance
    Exhibit I  . . . . . . . . . .Subrogation and Contribution Agreement
 
SCHEDULES

    Schedule 1.1(a). . . . . . . .Borrowing Subsidiaries
    Schedule 1.1(b)   .. . . . . .Subsidiary Guarantors
    Schedule 4.4 . . . . . . . . .Subsidiaries
    Schedule 4.5 . . . . . . . . .Litigation
    Schedule 4.12. . . . . . . . .Environmental Matters
    Schedule 5.2 . . . . . . . . .Liens



                                          iv



<PAGE>

                                                                Exhibit 11(b)(2)


    THIS LOAN AGREEMENT, dated as of February 27, 1997 (as amended or 
modified from time to time, this "Agreement"), is by and among INVACARE 
CORPORATION, an Ohio corporation (the "Company"), each of the Subsidiaries of 
the Company now or hereafter designated in Section 1.1 as a Borrowing 
Subsidiary (individually, a "Borrowing Subsidiary" and collectively, the 
"Borrowing Subsidiaries") (the Company and the Borrowing Subsidiaries may 
each be referred to as a "Borrower" and, collectively, as the "Borrowers"), 
Invacare Corporation, as treasury manager for the Borrowers (the "Treasury 
Manager"), the Banks set forth on the signature pages hereof (collectively, 
the "Banks" and individually, a "Bank"), NBD BANK, a Michigan banking 
corporation, as agent for the Banks (in such capacity, the "Agent") and 
Keybank National Association, a national banking association, as co-agent for 
the Banks (in such capacity, the "Co-Agent").

                                     INTRODUCTION

    The Borrowers desire to obtain a revolving credit facility in the 
aggregate principal amount of $200,000,000, in order to finance the 
acquisition of the capital stock of Healthdyne Technologies, Inc. and to 
provide funds for their other general corporate purposes, including other 
acquisitions, and the Banks are willing to establish such a credit facility 
in favor of the Borrowers on the terms and conditions herein set forth.

    In consideration of the premises and of the mutual agreements herein 
contained, the parties hereto agree as follows:

                                      ARTICLE 1.
                                     DEFINITIONS

    1.1   CERTAIN DEFINITIONS.  As used herein the following terms shall have 
the following respective meanings:

    "ACQUISITION" shall mean any transaction, or any series of related 
transactions, consummated on or after the date of this Agreement, by which 
the Company or any of its Subsidiaries (i) acquires any going business or all 
or substantially all of the assets of any firm, corporation or limited 
liability company, or division thereof, whether through purchase of assets, 
merger or otherwise or (ii) directly or indirectly acquires (in one 
transaction or as the most recent transaction in a series of transactions) at 
least a majority (in number of votes) of the securities of a corporation 
which have ordinary voting power for the election of directors (other than 
securities having such power only by reason of the happening of a 
contingency) or a majority (by percentage or voting power) of the outstanding 
ownership  interests of a partnership or limited liability company.

<PAGE>

    "ACQUISITION DOCUMENTS" shall mean, with respect to any Acquisition, all 
purchase agreements, agreements and plans of merger, acquisition agreements 
and other agreements, instruments or documents executed in connection with or 
relating to such Acquisition, including without limitation all required 
governmental, non-governmental (including without limitation shareholders) 
and other approvals and consents required in connection therewith and all 
other agreements and documents executed or delivered in connection therewith.

    "AFFILIATE" when used with respect to any person shall mean any other 
person which, directly or indirectly, controls or is controlled by or is 
under common control with such person.  For purposes of this definition 
"control" (including the correlative meanings of the terms "controlled by" 
and "under common control with"), with respect to any person, shall mean 
possession, directly or indirectly, of the power to direct or cause the 
direction of the management and policies of such person, whether through the 
ownership of voting securities or by contract or otherwise.

    "AGENT" shall mean NBD and its successors.

    "APPLICABLE LENDING OFFICE" shall mean, with respect to any Loan made by 
any Bank or with respect to such Bank's Commitment, the office of such Bank 
or of any Affiliate of such Bank located at the address specified as the 
applicable lending office for such Bank set  forth next to the name of such 
Bank in the signature pages hereof or any other office or Affiliate of such 
Bank or of any Affiliate of such Bank hereafter selected and notified to the 
Company and the Agent by such Bank. Unless the Agent shall notify the 
Treasury Manager otherwise, the Applicable Lending Office of the Agent shall 
be the principal office of the Agent in Detroit, Michigan.

    "APPLICABLE MARGIN" shall mean with respect to any Interbank Offered Rate 
Loan and the facility fees payable pursuant to Section 2.4(a), as the case 
may be, the applicable percentage set forth in the applicable table below as 
adjusted on the date on which the financial statements and compliance 
certificate required pursuant to Section 5.1(d) are delivered to the Banks 
and shall remain in effect until the next change to be effected pursuant to 
this definition, provided, that, if any financial statements referred to 
above are not delivered within the time period specified above, then, until 
the financial statements are delivered, the ratio of Funded Debt to Total 
Capitalization as of the end of the fiscal quarter that would have been 
covered thereby shall for the purposes of this definition be deemed to be 
greater than or equal to 0.58 to 1.0:

                                  APPLICABLE MARGIN
                                  -----------------


                                           Interbank Offered 
    Funded Debt to Total Capitalization    Rate Loan           Facility Fee
    -----------------------------------------------------------------------
    Less than 0.40:1.0                     0.185%              0.09% 
    -----------------------------------------------------------------------
    Greater than or equal to                                         
    0.40:1.0 but less than 0.50:1.0        0.25%               0.125%
    -----------------------------------------------------------------------
    Greater than or equal to                                         
    0.50:1.0 but less than 0.58:1.0        0.30%               0.15% 
    -----------------------------------------------------------------------


                                         -2-

<PAGE>

    Greater than or equal to 0.58:1.0      0.45%               0.20%
    -----------------------------------------------------------------------

    "ASSIGNMENT AND ACCEPTANCE" is defined in Section 8.6(d).

    "BANK OBLIGATIONS" shall mean all indebtedness, obligations and 
liabilities, whether now owing or hereafter arising, direct, indirect, 
contingent or otherwise, of the Borrowers to the Agent or any Bank pursuant 
to the Loan Documents.

    "BORROWING" shall mean the aggregation of Loans made to any Borrower, or 
continuations and conversions of such Loans, made pursuant to Article 2 on a 
single date and for a single Interest Period.  A Borrowing may be referred to 
for purposes of this Agreement by reference to the type of Loan comprising 
the relating Borrowing, e.g., a "Floating Rate Borrowing" if such Loans are 
Floating Rate Loan or an "Interbank Offered Rate Borrowing" if such Loans are 
Interbank Offered Rate Loans.

    "BORROWING SUBSIDIARY" shall mean each of the Subsidiaries of the Company 
set forth on Schedule 1.1(a) on the Effective Date together with any other 
Subsidiary of the Company upon request by the Company to the Agent for 
designation of such Subsidiary as a "Borrowing Subsidiary" hereunder so long 
as (a) the Company and the other Guarantors guarantee the obligations of such 
new Borrowing Subsidiary pursuant to the terms of the Guaranties, (b) such 
new Borrowing Subsidiary delivers Notes executed in favor of each Bank and 
(c) the Company and such new Borrowing Subsidiary execute an agreement in the 
form of Exhibit A hereto.

    "BUSINESS DAY" shall mean a day other than a Saturday, Sunday or other 
day on which (a) the Agent is not open to the public for carrying on 
substantially all of its banking functions or (b) if such reference relates 
to the date for payment or purchase of any amount denominated in any currency 
other than Dollars, banks are not generally open to the public for carrying 
on substantially all of their banking functions in the principal financial 
center of the country issuing such currency.

    "CAPITAL LEASE" of any person shall mean any lease which, in accordance 
with generally accepted accounting principles, is capitalized on the books of 
such person.

    "CODE" shall mean the Internal Revenue Code of 1986, as amended from time 
to time, and the regulations thereunder.

    "COMMITMENT" shall mean, with respect to each Bank, the commitment of 
each such Bank to make Loans, in amounts not exceeding in aggregate principal 
amount outstanding at any time the respective commitment amount for each such 
Bank set forth next to the name of each such Bank in the signature pages 
hereof or, as to any Bank becoming a party hereto after the Effective Date, 
as set forth in the applicable Assignment and Acceptance, as such amounts may 
be reduced or modified from time to time pursuant to this Agreement.

                                         -3-

<PAGE>

    "CONSOLIDATED" or "CONSOLIDATED" shall mean, when used with reference to 
any financial term in this Agreement, the aggregate for the Company and its 
consolidated Subsidiaries of the amounts signified by such term for all such 
persons determined on a consolidated basis in accordance with generally 
accepted accounting principles.  

    "CONSOLIDATED NET INCOME" of any person shall mean, for any period, the 
net income (after deduction for income and other taxes of such person 
determined by reference to income or profits of such person) for such period 
(but without reduction for any net loss incurred for any fiscal year during 
such period), all as determined in accordance with generally accepted 
accounting principles.

    "CONTINGENT LIABILITIES" of any person shall mean, as of any date, all 
obligations of such person or of others for which such person is contingently 
liable, as obligor, guarantor, surety  or in any other capacity, or in 
respect of which obligations such person assures a creditor against loss or 
agrees to take any action to prevent any such loss (other than endorsements 
of negotiable instruments for collection in the ordinary course of business), 
including without limitation all reimbursement obligations of such person in 
respect of any letters of credit, surety bonds or similar obligations and all 
obligations of such person to Loan funds to, or to purchase assets, property 
or services from, any other person in order to maintain the financial 
condition of such other person.

         "DEFAULT" shall mean any of the events or conditions described in 
Section 6.1 which might become an Event of Default with notice or lapse of 
time or both.

    "DESIGNATED BORROWER" shall mean, in relation to any Loan, the Borrower 
nominated by the Treasury Manager as the Designated Borrower in the request 
for such Loan.

    "DOLLARS" and "$" shall mean the lawful money of the United States of 
America.  

    "EBIT" shall mean, with respect to any person, for any period, the sum of 
(a) operating net income or loss plus (b) all amounts deducted in determining 
such operating net income or loss on account of (i) Interest Expense and (ii) 
taxes based on or measured by income, all as determined in accordance with 
generally accepted accounting principles.

    "EFFECTIVE DATE" shall mean the effective date specified in the final 
paragraph of this Agreement.  

    "ENVIRONMENTAL LAWS" at any date shall mean all provisions of law, 
statute, ordinances, rules, regulations, judgments, writs, injunctions, 
decrees, orders, awards and standards which are applicable to any Borrower or 
any Subsidiary and promulgated by the government of the United States of 
America or any foreign government or by any state, province, municipality or 
other political subdivision thereof or therein or by any court, agency, 
instrumentality, regulatory authority or commission of any of the foregoing 
concerning the protection of, or regulating the discharge of substances into, 
the environment.

                                         -4-

<PAGE>

    "ERISA" shall mean the Employee Retirement Income Security Act of 1974, 
as amended from time to time, and the regulations thereunder.

    "ERISA AFFILIATE" shall mean, with respect to any person, any trade or 
business (whether or not incorporated) which, together with such person or 
any Subsidiary of such person, would be treated as a single employer under 
Section 414 of the Code.

    "EVENT OF DEFAULT" shall mean any of the events or conditions described in
Section 6.1. 

    "FEDERAL FUNDS RATE" shall mean the per annum rate that is equal to the 
per annum rate established and announced by the Agent from time to time as 
the opening federal funds rate paid or payable by the Agent in its regional 
federal funds market for overnight borrowings from other banks; as 
conclusively determined by the Agent, absent manifest error, such rate to be 
rounded up, if necessary, to the nearest whole multiple of one one-hundredth 
of one percent (1/100 of 1%), which Federal Funds Rate shall change 
simultaneously with any change in such announced rates.

    "FNBC" shall mean The First National Bank of Chicago, an Affiliate of the 
Agent.

    "FIXED RATE LOAN" means any Negotiated Rate Loan or Interbank Offered 
Rate Loan.
 
    "FLOATING RATE" shall mean the per annum rate equal to the greater of (i) 
the Prime Rate in effect from time to time, or (ii) the sum of one-half of 
one percent (1/2 of 1%) per annum plus the Federal Funds Rate in effect from 
time to time; which Floating Rate shall change simultaneously with any change 
in such Prime Rate or Federal Funds Rate, as the case may be.

    "FLOATING RATE LOAN" shall mean any Loan which bears interest at the 
Floating Rate.

    "FUNDED DEBT" of any person shall mean all Indebtedness that would, in 
accordance with generally accepted accounting principles, constitute long 
term debt, including (a) any Indebtedness with a maturity of longer than one 
year after the creation of such Indebtedness, (b) any Indebtedness 
outstanding under a revolving credit or similar agreement (and any renewal or 
extension thereof) providing for borrowings which constitute long term debt; 
PROVIDED, HOWEVER, that all Indebtedness outstanding under this Agreement 
shall be deemed "Funded Debt" at all times regardless of the proper 
classification under generally accepted accounting principles, (c) any 
Capital Lease and (d) any guarantee with respect to Funded Debt of another 
person to the extent the indebtedness or obligations guaranteed are not 
included in the liabilities of the Company and its Subsidiaries determined on 
a consolidated basis as of the date of the last balance sheet required to be 
furnished to the Banks pursuant to Section 5.1(d)(ii) or 5.1(d)(iii) of this 
Agreement.  

    "GENERALLY ACCEPTED ACCOUNTING PRINCIPLES" shall mean generally accepted 
accounting principles in effect from time to time and applied on a basis 
consistent with that reflected in the financial statements referred to in 
Section 4.6, unless any change in generally 

                                         -5-

<PAGE>

accepted accounting principles from those in effect on the Effective Date 
materially impacts the calculation of the covenants set forth in Sections 
5.2(a), (b) and (c).  

    "GUARANTIES" shall mean each guaranty entered into by the Guarantors for 
the benefit of the Agent and the Banks pursuant to this Agreement in the form 
of Exhibit B-1 hereto with respect to the Company and Exhibit B-2 hereto with 
respect to all other Guarantors, as amended or modified from time to time.

    "GUARANTOR" shall mean the Company and each of the Subsidiaries listed on 
Schedule 1.1(b) and each person becoming a Subsidiary after the Effective 
Date and requested by the Agent to execute a Guaranty, or otherwise entering 
into a Guaranty from time to time; PROVIDED, HOWEVER, Healthdyne shall not be 
required to become a Guarantor and execute a Guaranty until after the Merger 
is completed.

    "HEALTHDYNE" shall mean Healthdyne Technologies, Inc., a Georgia 
corporation.

    "HEALTHDYNE ACQUISITION" shall mean the Acquisition of at least 51% of 
the capital stock of Healthdyne pursuant to the terms of the Healthdyne 
Acquisition Document, free and clear of any Liens.

    "HEALTHDYNE ACQUISITION DOCUMENT" shall mean all Acquisition Documents 
executed, delivered or obtained in connection with the Healthdyne 
Acquisition, including without limitation the Schedule 14D-1 filed by the 
Company under the Securities and Exchange Act of 1934 and dated January 27, 
1997, including all annexes and schedules thereto, and all agreements and 
documents executed in connection therewith, and all required governmental, 
shareholder and other approvals and consents required in connection therewith 
and all other agreements and documents executed or delivered in connection 
therewith.

    "INDEBTEDNESS" shall mean (i) indebtedness for borrowed money, (ii) 
obligations evidenced by bonds, debentures, notes or other similar 
instruments, (iii) obligations to pay the deferred purchase price of property 
or services, except for trade accounts payable arising in the ordinary course 
of business that are not more than 90 days past due or as are reasonably 
being contested, (iv) obligations as lessee under leases which have been in 
accordance with generally accepted accounting principles, recorded as Capital 
Leases, (v) obligations to purchase property or services if payment is 
required regardless of whether such property is delivered or services are 
performed (generally called "take or pay" contracts), but such obligations 
shall only be included in an amount equal to the difference between the 
amount of the required payment and the value to the Company or a Subsidiary 
of the Company of the goods or services required to be delivered in 
connection with such required payment, (vi) obligations in respect of 
currency or interest rate swaps or comparable transactions valued at the 
maximum termination payment payable by the obligor, other than any such 
contracts entered into as hedges against Indebtedness of the kinds referred 
to in clauses (i) and (ii) above, (vii) any obligation of any Person other 
than the Company or its Subsidiaries, if such obligation is secured by any 
lien on the property of the Company or any of its Subsidiaries, provided 
that, the amount of any such Indebtedness shall be limited to the greater of 
the then book value or fair market value of the property securing any such 
lien, (viii) guaranties in 

                                         -6-

<PAGE>

respect of indebtedness or obligations of other Persons of the kinds referred 
to in clauses (i) through (vii) above, to the extent the indebtedness or 
obligations guaranteed are not included in the liabilities of the Company and 
its Subsidiaries determined on a consolidated basis as of the date of the 
last balance sheet required to be furnished to the Banks pursuant to Section 
5.1(d)(ii) or 5.1(d)(iii) of this Agreement, and (ix) liabilities in respect 
of unfunded vested benefits under plans covered by Title IV of ERISA.

    "INTERBANK OFFERED RATE" applicable to any Interbank Interest Period 
means, the per annum rate that is equal to the sum of:

         (a)  the Applicable Margin, plus
    
         (b)  the rate per annum obtained by dividing (i) the per annum rate 
of interest at which deposits in Dollars for such Interbank Interest Period 
and in an aggregate amount comparable to the amount of the related Interbank 
Offered Rate Loan to be made by FNBC in its capacity as a Bank hereunder are 
offered to the Agent by other prime banks in the applicable interbank market 
selected by the Agent in its reasonable discretion, at approximately 11:00 
a.m. Detroit time, on the second Interbank Business Day prior to the first 
day of such Interbank Interest Period by (ii) an amount equal to one minus 
the stated maximum rate (expressed as a decimal) of all reserve requirements 
including, without limitation, any marginal, emergency, supplemental, special 
or other reserves, that is specified on the first day of such Interbank 
Interest Period by the Board of Governors of the Federal Reserve System (or 
any successor agency thereto) or the relevant fiscal or monetary authority 
for determining the maximum reserve requirement with respect to eurocurrency 
funding (currently referred to as "Eurocurrency liabilities" in Regulation D 
of such Board) maintained by a member bank of such System; all as 
conclusively determined by the Agent, absent manifest error, such sum to be 
rounded up, if necessary, to the nearest whole multiple of one one-hundredth 
of one percent (1/100 of 1%); which Interbank Offered Rate shall change 
simultaneously with any change in the Applicable Margin.

    "INTERBANK BUSINESS DAY" shall mean, with respect to any Interbank 
Offered Rate Loan, a day which is both a Business Day and a day on which 
dealings in Dollar deposits are carried out in the relevant interbank market.

    "INTERBANK INTEREST PERIOD" shall mean, with respect to any Interbank 
Offered Rate Loan, the period commencing on the day such Interbank Offered 
Rate Loan is made or converted to an Interbank Offered Rate Loan and ending 
on the date one, two, three or six months thereafter, as any Borrower may 
elect under Section 2.5 or 2.8, and each subsequent period commencing on the 
last day of the immediately preceding Interbank Interest Period and ending on 
the date one, two, three or six months thereafter, as any Borrower may elect 
under Section 2.5 or 2.8, PROVIDED, HOWEVER, that (a) any Interbank Interest 
Period which commences on the last Interbank Business Day of a calendar month 
(or on any day for which there is no numerically corresponding day in the 
appropriate subsequent calendar month) shall end on the last Interbank 
Business Day of the appropriate subsequent calendar month, (b) each Interbank 
Interest Period which would otherwise end on a day which is not an Interbank 
Business Day shall end on the next succeeding Interbank Business Day or, if 
such next succeeding Interbank Business Day falls in the next succeeding 

                                         -7-

<PAGE>

calendar month, on the next preceding Interbank Business Day, and (c) no 
Interbank Interest Period which would end after the Termination Date shall be 
permitted.  

    "INTERBANK OFFERED RATE LOAN" shall mean any Loan which bears interest at 
the Interbank Offered Rate.

    "INTEREST EXPENSE" of any person shall mean, for any period, all interest 
paid or payable by such person during such period.

    "INTEREST COVERAGE RATIO" shall mean, as of any date,  the ratio of (a) 
Consolidated EBIT as calculated for the four most recently ended consecutive 
fiscal quarters of the Company to (b) Consolidated Interest Expense as 
calculated for the same four fiscal quarters.

    "INTEREST PAYMENT DATE" shall mean (a) with respect to any Negotiated 
Rate Loan or Interbank Offered Rate Loan, the last day of each Interest 
Period with respect to such Negotiated Rate Loan or Interbank Offered Rate 
Loan and, in the case of any Interest Period exceeding three months, those 
days that occur during such Interest Period at intervals of three months 
after the first day of such Interest Period, and (b) in all other cases, 
within five (5) days of receipt of an invoice containing a computation of 
interest due, which invoice shall be prepared as of the last Business Day of 
each March, June, September and December occurring after the date hereof, 
commencing with the first such Business Day occurring after the date of this 
Agreement.

    "INTEREST PERIOD" shall mean any Negotiated Interest Period or Interbank 
Interest Period.

    "LIEN" shall mean any pledge, assignment, deed of trust, hypothecation, 
mortgage, security interest, conditional sale or title retaining contract, 
financing statement filing, or any other type of lien, charge, encumbrance or 
other similar claim or right.  

    "LOAN" shall mean any Revolving Credit Loan or any Swing Line Loan, as 
the context may require.  

    "LOAN DOCUMENTS" shall mean this Agreement, the Notes, the Guaranties, 
the Subrogation and Contribution Agreement and any other agreement, 
instrument or document executed at any time in connection with this Agreement.

    "MERGER"  shall mean the merger of Healthdyne into the Company or any 
wholly-owned Subsidiary of the Company.

    "MULTIEMPLOYER PLAN" shall mean any "multiemployer plan" as defined in 
Section 4001(a)(3) of ERISA or Section 414(f) of the Code.

    "NBD" shall mean NBD Bank, a Michigan banking corporation.

                                         -8-

<PAGE>

    "NEGOTIATED INTEREST PERIOD" shall mean, with respect to any Negotiated 
Rate Loan, the period commencing on the day such Negotiated Rate Loan is made 
or converted to a Negotiated Rate Loan and ending on the date agreed upon 
among the Borrowers and the Agent at the time such Negotiated Rate Loan is 
made, and each subsequent period commencing on the last day of the 
immediately preceding Negotiated Interest Period and ending on the date 
agreed upon among the Borrowers and the Agent at the time such Negotiated 
Rate Loan is elected to be continued as a Negotiated Rate Loan by the 
Borrowers under Section 2.8, provided no Negotiated Interest Period which 
would end after the Termination Date shall be permitted.

    "NEGOTIATED RATE" shall mean, with respect to any Negotiated Rate Loan, 
the rate per annum agreed upon between the Borrowers and the Agent at the 
time such Negotiated Rate Loan is made.

    "NEGOTIATED RATE LOAN" shall mean any Loan which bears interest at the 
Negotiated Rate.

         "NET CASH PROCEEDS" means, without duplication (a) in connection 
with any sale or other disposition of any asset or any settlement by, or 
receipt of payment in respect of, any property insurance claim or 
condemnation award, the cash proceeds (including any cash payments received 
by way of deferred payment of principal pursuant to a note or installment 
receivable or purchase price adjustment receivable or otherwise, but only as 
and when received) of such sale, settlement or payment, net of reasonable and 
documented attorneys' fees, accountants' fees, investment banking fees, 
amounts required to be applied to the repayment of Indebtedness secured by a 
Lien expressly permitted hereunder on any asset which is the subject of such 
sale, insurance claim or condemnation award (other than any Lien in favor of 
the Agent for the benefit of the Agent and the Banks) and other customary 
fees actually incurred in connection therewith and net of taxes paid or 
reasonably estimated to be payable as a result thereof and (b) in connection 
with any issuance or sale of any equity securities or debt securities or 
instruments or the incurrence of loans, the cash proceeds received from such 
issuance or incurrence, net of investment banking fees, reasonable and 
documented attorneys' fees, accountants' fees, underwriting discounts and 
commissions and other reasonable and customary fees and expenses actually 
incurred in connection therewith.

    "NET WORTH" of any person shall mean, as of any date, the amount of any 
preferred stock, paid in capital and similar equity accounts plus (or minus 
in the case of a deficit) the capital surplus and retained earnings of such 
person and the amount of any foreign currency translation adjustment account 
shown as a capital account of such person minus treasury stock.

    "1994 LOAN AGREEMENT" shall mean the loan agreement dated as of December 
20, 1994 among the Company, the Borrowing Subsidiaries party thereto, the 
banks party thereto, and NBA Bank, formerly known as NBA Bank, N.A., as 
agent, as amended, modified, refinanced or replaced from time to time.

    "NOTES" shall mean the Revolving Credit Notes and the Swing Line Note; 
"NOTE" shall mean any Revolving Credit Note or any Swing Line Note. 

                                         -9-

<PAGE>

    "OVERDUE RATE" shall mean (a) in respect of principal of Floating Rate 
Loans, a rate per annum that is equal to the sum of two percent (2%) per 
annum plus the Floating Rate, (b) in respect of principal of Fixed Rate 
Loans, a rate per annum that is equal to the sum of two percent (2%) per 
annum plus the per annum rate in effect thereon until the end of the then 
current Interest Period for such Loan and, thereafter, a rate per annum that 
is equal to the sum of two percent (2%) per annum plus the Floating Rate, and 
(c) in respect of other amounts payable by any Borrower hereunder (other than 
interest), a per annum rate that is equal to the sum of two percent (2%) per 
annum plus the Floating Rate.  

    "PBGC" shall mean the Pension Benefit Guaranty Corporation and any entity 
succeeding to any or all of its functions under ERISA.

    "PERMITTED LIENS" shall mean Liens permitted by Section 5.2(d) hereof.

    "PERSON" or "PERSON" shall include an individual, a corporation, a 
limited liability company, an association, a partnership, a trust or estate, 
a joint stock company, an unincorporated organization, a joint venture, a 
trade or business (whether or not incorporated), a government (foreign or 
domestic) and any agency or political subdivision thereof, or any other 
entity.  

    "PLAN" shall mean, with respect to any person,  any pension plan (other 
than a Multiemployer Plan) subject to Title IV of ERISA or to the minimum 
funding standards of Section 412 of the Code which has been established or 
maintained by such person, any Subsidiary of such person or any ERISA 
Affiliate, or by any other person if such person, any Subsidiary of such 
person or any ERISA Affiliate could have liability with respect to such 
pension plan.

    "PRIME RATE" shall mean the per annum rate announced by the Agent from 
time to time as its "prime rate" (it being acknowledged that such announced 
rate may not necessarily be the lowest rate charged by the Agent to any of 
its customers), which Prime Rate shall change simultaneously with any change 
in such announced rate.

    "PROHIBITED TRANSACTION" shall mean any non-exempt transaction involving 
any Plan which is proscribed by Section 406 of ERISA or Section 4975 of the 
Code.

    "REPORTABLE EVENT" shall mean a reportable event as described in Section 
4043(b) of ERISA including those events as to which the thirty (30) day 
notice period is waived under Part 2615 of the regulations promulgated by the 
PBGC under ERISA.

    "REQUIRED BANKS" shall mean Banks holding not less than sixty percent of 
the aggregate principal amount of the Revolving Credit Loans then outstanding 
(or sixty percent of the Commitments if no Revolving Credit Loans are then 
outstanding).

    "REVOLVING CREDIT LOAN" shall mean any Borrowing under Section 2.5 
evidenced by the Revolving Credit Notes and made pursuant to Section 2.1(a).

                                         -10-

<PAGE>

    "REVOLVING CREDIT NOTE" shall mean any promissory note of the Borrowers 
evidencing the Revolving Credit Loans in substantially the form annexed 
hereto as Exhibit C, as amended or modified from time to time and together 
with any promissory note or notes issued in exchange or replacement therefor.

    "SHORT TERM BORROWINGS" shall mean all Indebtedness for borrowed money 
with an original maturity less than one year, other than the Loans.

    "SUBSIDIARY" of any person shall mean any other person (whether now 
existing or hereafter organized or acquired) in which (other than directors' 
qualifying shares required by law) at least a majority of the securities or 
other ownership interests of each class having ordinary voting power or 
analogous right (other than securities or other ownership interests which 
have such power or right only by reason of the happening of a contingency), 
at the time as of which any determination is being made, are owned, 
beneficially and of record, by such person or by one or more of the other 
Subsidiaries of such person or by any combination thereof.  Unless otherwise 
specified, reference to "Subsidiary" shall mean a Subsidiary of the Company.

    "SUBORDINATED DEBT" of any person shall mean, as of any date, that 
Indebtedness of such person for borrowed money which is expressly subordinate 
and junior in the right of payment to the Loans of such person to the Banks 
in manner and by agreement satisfactory in form and substance to the Required 
Banks, which consent and agreement may not be unreasonably withheld.

    "SUBROGATION AND CONTRIBUTION AGREEMENT" shall mean the subrogation and 
contribution Agreement entered into by the Guarantors pursuant to this 
Agreement in the form of Exhibit I hereto, as amended or modified from time 
to time.

    "SWING LINE BANK"   shall  mean FNBC or any Affiliate of FNBC, or any 
other Bank designated as "Swing Line Bank" hereunder by the Company, such 
Bank and the Agent.

    "SWING LINE FACILITY" shall have the meaning specified in Section 2.1(b).

    "SWING LINE LOAN" shall mean any borrowing under Section 2.5 evidenced by 
a Swing Line Note and made pursuant to Section 2.1(b).

    "SWING LINE NOTE" shall mean the promissory note of the Company payable 
to the order of the Swing Line Bank, in substantially the form annexed hereto 
as Exhibit D, as amended or modified from time to time and together with any 
promissory note or notes issued in exchange or replacement therefor.

    "TERMINATION DATE" shall mean the earlier to occur of (a) the second 
anniversary of the initial Loan hereunder, (b) October 31, 1999 and (c) the 
date on which the Commitment shall be terminated pursuant to Section 2.3 or 
6.2.

    "TOTAL CAPITALIZATION" of any person shall mean the sum of Net Worth of 
such person and Funded Debt of such person.

                                         -11-

<PAGE>

    "TREASURY MANAGER" includes any Affiliate of the Company appointed in 
writing by the Company and the Borrowers as Treasury Manager under this 
Agreement in the place of the person named above, and which is accepted by 
the Agent for that purpose.

    "UNFUNDED BENEFIT LIABILITIES" shall mean, with respect to any Plan as of 
any date, the amount of the unfunded benefit liabilities determined in 
accordance with Section 4001(a)(18) of ERISA.

    1.2   OTHER DEFINITIONS; RULES OF CONSTRUCTION.  As used herein, the terms 
"Agent", "Banks", "Company", "Borrowing Subsidiary", "Borrowing Subsidiaries" 
and "this Agreement" shall have the respective meanings ascribed thereto in 
the introductory paragraph of this Agreement.  Such terms, together with the 
other terms defined in Section 1.1, shall include both the singular and the 
plural forms thereof and shall be construed accordingly.  All computations 
required hereunder and all financial terms used herein shall be made or 
construed in accordance with generally accepted accounting principles unless 
such principles are inconsistent with the express requirements of this 
Agreement.  Use of the terms "herein", "hereof", and "hereunder" shall be 
deemed references to this Agreement in its entirety and not to the Section or 
clause in which such term appears.  References to "Sections" and 
"subsections" shall be to Sections and subsections, respectively, of this 
Agreement unless otherwise specifically provided.

                                      ARTICLE 2

                            THE COMMITMENTS AND THE LOANS

    2.1   COMMITMENTS OF THE BANKS.

          (a) REVOLVING CREDIT LOANS.  Each Bank agrees, for itself only, 
subject to the terms and conditions of this Agreement, to make Revolving 
Credit Loans to the Borrowers pursuant to Section 2.5, from time to time from 
and including the Effective Date to but excluding the Termination Date, not 
to exceed in aggregate principal amount at any time outstanding the amount 
determined pursuant to Section 2.1(c).  On the date of each Loan, the 
aggregate amount of all Loans, including the Loans to be made or requested on 
such date, shall not exceed the aggregate Commitments.

          (b) SWING LINE LOAN.   (i) The Treasury Manager may request of the 
Agent that Swing Line Bank make, and the Swing Line Bank may, in its sole 
discretion provided that the requirements of Section 2.7 are complied with by 
the Borrowers at the time of such request, make, Swing Line Loans to the 
Borrowers from time to time on any Business Day during the period from the 
Effective Date until the Termination Date in an aggregate principal amount 
not to exceed at any date the lesser of (A) $10,000,000 (the "Swing Line 
Facility") and (B) the aggregate of the unused portions of the Commitments of 
the Banks as of such date.  Each Bank's Commitment shall be deemed utilized 
by an amount equal to such Bank's pro rata share (based on such Bank's 
Commitment) of each Swing Line Loan for purposes of determining the 

                                         -12-

<PAGE>

amount of Revolving Credit Loans required to be made by such Bank.  Swing 
Line Loans shall bear interest at the Interbank Offered Rate or the 
Negotiated Rate, as the Borrowers may elect hereunder.  Within the limits of 
the Swing Line Facility, so long as the Swing Line Bank, in its sole 
discretion, elects to make Swing Line Loans, the Borrowers may borrow and 
reborrow under this Section 2.1(b)(i).

              (ii)   The Swing Line Bank may at any time in its sole and 
absolute discretion require that any Swing Line Loan be refunded by a 
Revolving Credit Loan, and upon notice thereof by the Agent to the Company 
and the Banks, the Borrowers shall be deemed to have requested a Revolving 
Credit Loan bearing interest at the Floating Rate in an amount equal to the 
amount of any such Swing Line Loan and such Revolving Credit Loan shall be 
made to refund such Swing Line Loan.  Each Bank shall be absolutely and 
unconditionally obligated (except as set forth in Section 2.1(b)(i)) to fund 
its pro rata share (based on such Bank's Commitment) of such Revolving Credit 
Loan and such obligation shall not be affected by any circumstance, 
including, without limitation, (i) any set-off, counterclaim, recoupment, 
defense or other right which such Bank or the Company or any of its 
Subsidiaries may have against the Swing Line Bank, any Borrower or any of 
their respective Subsidiaries or anyone else for any reason whatsoever; (ii) 
the occurrence or continuance of a Default or an Event of Default; (iii) any 
adverse change in the condition (financial or otherwise) of any Borrower or 
any of its Subsidiaries; (iv) any breach of this Agreement by any Borrower or 
any of their respective Subsidiaries or any other Bank; or (v) any other 
circumstance, happening or event whatsoever, whether or not similar to any of 
the foregoing (including any Borrower's failure to satisfy any conditions 
contained in Article 2 or any other provision of this Agreement).

          (c) LIMITATION ON AMOUNT OF LOANS.  Notwithstanding anything in 
this Agreement to the contrary, (i) the aggregate principal amount of the 
Revolving Credit Loans made by any Bank at any time outstanding shall not 
exceed the amount of its respective Commitment as of the date any such Loan 
is made, (ii) the aggregate amount of Loans requested hereunder to finance 
the Healthdyne Acquisition shall not exceed the aggregate available amount of 
the Commitments, (iii) the aggregate amount of Loans requested hereunder for 
other Acquisitions shall not exceed $15,000,000, and (iv) the aggregate 
amount of Loans requested hereunder for general corporate purposes, other 
than the Healthdyne Acquisition or any other Acquisition, shall not exceed 
$15,000,000.

    2.2   EFFECT ON COMMITMENTS.  Notwithstanding anything in this Agreement 
to the contrary, the sum of the aggregate outstanding principal amount of all 
Revolving Credit Loans plus all Swing Line Loans shall not at any time exceed 
the aggregate amount of the  Commitments of all Banks.

    2.3   TERMINATION AND REDUCTION OF COMMITMENTS. The Company shall have 
the right to terminate or reduce the Commitments at any time and from time to 
time at its option, PROVIDED that (A) the Treasury Manager shall give five 
days' prior written notice of such termination or reduction to the Agent 
(with sufficient executed copies for each Bank) specifying the amount and 
effective date thereof, (B) each partial reduction of the Commitments shall 
be in a minimum amount of $5,000,000 and in integral multiples of $1,000,000 
and shall reduce the 

                                         -13-

<PAGE>

Commitments of all of the Banks proportionately in accordance with the 
respective Commitment amounts for each such Bank set forth in the signature 
pages hereof next to the name of each such Bank, (C) no such termination or 
reduction shall be permitted with respect to any portion of the Commitments 
as to which a request for a Borrowing pursuant to Section 2.5 is then pending 
and (D) the Commitments may not be terminated if any Loans are then 
outstanding and may not be reduced below the principal amount of Loans then 
outstanding.  The Commitments or any portion thereof terminated or reduced 
pursuant to this Section 2.3, whether optional or mandatory, may not be 
reinstated.  The Borrowers shall immediately prepay the Loans to the extent 
they exceed the reduced aggregate Commitments pursuant hereto, and any 
reduction hereunder shall reduce the  Commitment amount of each Bank 
proportionately in accordance with the respective Commitment amounts for each 
such Bank set forth on the signature pages hereof next to the name of each 
such Bank.

    2.4   FEES.

          (a) The Company agrees to pay to the Banks a facility fee on the 
daily average amount of the Commitments, whether used or unused, for the 
period from the Effective Date to but excluding the Termination Date, at a 
rate equal to the Applicable Margin for the facility fee.  Accrued facility 
fees shall be payable quarterly in arrears in Dollars within five (5) days of 
receipt of an invoice prepared by the Agent containing a computation of 
facility fees due computed on the basis of 360 days and assessed for the 
actual number of days elapsed, which invoice shall be prepared as of the last 
Business Day of each March, June, September and December, commencing on the 
first such Business Day occurring after the date of this Agreement, and on 
the Termination Date. 

          (b) The Borrowers agrees to pay to the Agent an agency fee for its 
services as Agent under this Agreement in such amounts as may from time to 
time be agreed upon by the Borrowers and the Agent.

    2.5   DISBURSEMENT OF LOANS.

          (a) Except with respect to Swing Line Loans, the Treasury Manager 
shall give the Agent notice of its request for each Loan in substantially the 
form of Exhibit E hereto at the principal office of the Agent not later than 
10:00 a.m. Detroit time (i) three Interbank Business Days prior to the date 
such Loan is requested to be made if such Borrowing is to be made as an 
Interbank Offered Rate Borrowing, and (ii) on the date such Loan is requested 
to be made if such Loan is to be made as a Floating Rate Borrowing, which 
notice shall specify the Designated Borrower for which such Loan is 
requested, whether an Interbank Offered Rate Loan or Floating Rate Loan is 
requested and, in the case of each requested Interbank Offered Rate Loan, the 
Interest Period to be initially applicable to such Loan.  With respect to 
Swing Line Loans, the Treasury Manager shall give the Agent notice of its 
request for each Swing Line Loan in substantially the form of Exhibit E 
hereto at the principal office of the Agent not later than 1:00 p.m. Detroit 
time on the same Business Day any Swing Line Loan is requested to be made 
which notice shall specify the Designated Borrower for which such Swing Line 
Loan is requested.  The Agent, on the same day any such notice is given, 
shall provide notice of such 

                                         -14-

<PAGE>

requested Revolving Credit Loan to each Bank (which notice shall be provided 
by 1:00 p.m. Detroit time).  Subject to the terms and conditions of this 
Agreement, the proceeds of each such requested Loan shall be made available 
to the Designated Borrower requesting such Loan by depositing the proceeds 
thereof, in immediately available, freely transferable cleared funds in an 
account maintained and designated by such Borrower.

          (b) Each Bank, on the date any Revolving Credit Loan is requested 
to be made, shall make its pro rata share of such Revolving Credit Loan 
available in immediately available, freely transferable cleared funds for 
disbursement to the Designated Borrower requesting such Loan pursuant to the 
terms and conditions of this Agreement, at the principal office of the Agent. 
 Unless the Agent shall have received notice from any Bank prior to the date 
such Revolving Credit Loan is requested to be made under this Section 2.5 
that such Bank will not make available to the Agent such Bank's pro rata 
portion of such Loan, the Agent may assume that such Bank has made such 
portion available to the Agent on the date such Loan is requested to be made 
in accordance with this Section 2.5. If and to the extent such Bank shall not 
have so made such pro rata portion available to the Agent, the Agent may (but 
shall not be obligated to) make such amount available to such Designated 
Borrower, and such Bank agrees to pay to the Agent forthwith on demand such 
amount together with interest thereon, for each day from the date such amount 
is made available to such Designated Borrower by the Agent until the date 
such amount is repaid to the Agent, at a rate per annum equal to the Federal 
Funds Rate.  If such Bank shall pay such amount to the Agent together with 
interest, such amount so paid shall constitute a Revolving Credit Loan by 
such Bank as part of the related Borrowing for purposes of this Agreement.  
The failure of any Bank to make its pro rata portion of any such Borrowing 
available to the Agent shall not relieve any other Bank of its obligation to 
make available its pro rata portion of such Loan on the date such Loan is 
requested to be made, but no Bank shall be responsible for failure of any 
other Bank to make such pro rata portion available to the Agent on the date 
of any such Loan.

          (c) All Revolving Credit Loans made under this Section 2.5 shall be 
evidenced by the Revolving Credit Notes and all Swing Line Loans made under 
this Section 2.5 shall be evidenced by the Swing Line Note, and all such 
Loans shall be due and payable and bear interest as provided in Article 3.  
Each Bank is hereby authorized by the Borrowers to record on the schedule 
attached to the Notes, or in its books and records, the date, amount and type 
of each Loan and the duration of the related Interest Period (if applicable), 
the amount of each payment or prepayment of principal thereon, and the other 
information provided for on such schedule, which schedule or books and 
records, as the case may be, shall constitute prima facie evidence of the 
information so recorded, PROVIDED, HOWEVER, that failure of any Bank to 
record, or any error in recording, any such information shall not relieve the 
Borrowers of their obligation to repay the outstanding principal amount of 
the Loans, all accrued interest thereon and other amounts payable with 
respect thereto in accordance with the terms of the Notes and this Agreement. 
 Subject to the terms and conditions of this Agreement, each Borrower may 
borrow Revolving Credit Loans under this Section 2.5, prepay Revolving Credit 
Loans pursuant to Section 3.1 and reborrow Revolving Credit Loans under this 
Section 2.5.

                                         -15-

<PAGE>

    2.6   CONDITIONS FOR FIRST DISBURSEMENT.  The obligation of each Bank to 
make its first Loan hereunder is subject to receipt by each Bank and the 
Agent of the following documents and completion of the following matters, in 
form and substance reasonably satisfactory to each Bank and the Agent:

          (a) CHARTER DOCUMENTS.  Certificates of recent date of the 
appropriate authority or official of the Company's state of incorporation 
listing all charter documents of the Company, on file in that office and 
certifying as to the good standing and corporate existence of the Company, 
together with copies of such charter documents of the Company, certified as 
of a recent date by such authority or official and certified as true and 
correct as of the Effective Date by a duly authorized officer of the Company;

          (b) BY-LAWS AND CORPORATE AUTHORIZATIONS.  Copies of the by-laws of 
the Company together with all authorizing resolutions and evidence of other 
corporate action taken by the Company to authorize the execution, delivery 
and performance by the Company of this Agreement, the Guaranty and the Notes 
and the consummation by the Company of the transactions contemplated hereby, 
certified as true and correct as of the Effective Date by a duly authorized 
officer of the Company;

          (c) INCUMBENCY CERTIFICATE.  Certificates of incumbency of each 
Borrower containing, and attesting to the genuineness of, the signatures of 
those officers authorized to act on behalf of such Borrower in connection 
with this Agreement and the Notes and the consummation by such Borrower of 
the transactions contemplated hereby, certified as true and correct as of the 
Effective Date by a duly authorized officer of each Borrower;

          (d) NOTES.  The Notes, duly executed on behalf of the Borrowers, 
for each Bank;

          (e) GUARANTIES AND SUBROGATION AND CONTRIBUTION AGREEMENT.  The 
Guaranties and the Subrogation and Contribution Agreement duly executed by 
the Guarantors for the Banks;

          (f) LEGAL OPINION.  The favorable written opinion of legal counsel 
for the Company and the domestic Guarantors in the form of Exhibit F attached 
hereto; 

          (g) CONSENTS, APPROVALS, ETC.  Copies of all governmental and 
nongovernmental consents, approvals, authorizations, declarations, 
registrations or filings, if any, required on the part of the Company in 
connection with the execution, delivery and performance of this Agreement, 
the Guaranty and the Notes or the transactions contemplated hereby or as a 
condition to the legality, validity or enforceability of this Agreement and 
the Notes, certified as true and correct and in full force and effect as of 
the Effective Date by a duly authorized officer of the Company, or, if none 
are required, a certificate of such officer to that effect; and

          (h) AMENDMENT TO 1994 LOAN AGREEMENT.  All parties to the 1994 Loan 
Agreement shall have entered into an amendment to the 1994 Loan Agreement 
conforming all 

                                         -16-

<PAGE>

interest rates, fees and covenants to those contained in this Agreement, and 
containing such other amendments required by the Agent, all in form and 
substance satisfactory to the Agent.

    2.7   FURTHER CONDITIONS FOR DISBURSEMENT.  The obligation of each Bank 
to make any Loan (including its first Loan), or any continuation or 
conversion under Section 2.8, is further subject to the satisfaction of the 
following conditions precedent:

          (a) The representations and warranties contained in Article 4 
hereof and in any other Loan Document shall be true and correct in all 
material respects on and as of the date such Loan is made, continued or 
converted (both before and after such Loan is made, continued or converted) 
as if such representations and warranties were made on and as of such date; 
and

          (b) No Event of Default and no Default shall exist or shall have 
occurred and be continuing on the date such Loan is made, continued or 
converted (whether before or after such Loan is made, continued or converted);

          (c) In the case of any Loan for the purpose of financing the 
Healthdyne Acquisition, each of the following conditions shall be satisfied: 
(i) copies of all governmental and non-governmental (including without 
limitation any shareholders) consents, approvals, authorizations, 
declarations, registrations or filings required on the part of the Company or 
any of its Subsidiaries in connection with the execution, delivery, 
performance and consummation of the Healthdyne Acquisition and the Healthdyne 
Acquisition Documents or the transactions contemplated thereby or as a 
condition to the legality, validity or enforceability of the Healthdyne 
Acquisition and the Healthdyne Acquisition Documents, certified as true and 
correct and in full force and effect by a duly authorized officer of the 
Company, shall have been delivered to, and be satisfactory to, the Agent, 
(ii) the Agent shall have completed its review of all Healthdyne Acquisition 
Documents, which review shall be satisfactory to the Agent, (iii) copies of 
all other Healthdyne Acquisition Documents, certified as true and correct and 
in full force and effect by a duly authorized officer of the Company shall 
have been delivered to, and be satisfactory to, the Agent.

Each Borrower shall be deemed to have made a representation and warranty to 
the Banks at the time of the making of, and the continuation or conversion 
of, each Loan to the effects set forth in clauses (a) and (b) of this Section 
2.7.  For purposes of this Section 2.7, the representations and warranties 
contained in Section 4.6 hereof shall be deemed made with respect to the most 
recent financial statements delivered pursuant to Section 5.1(d)(ii) and 
(iii).

    2.8   SUBSEQUENT ELECTIONS AS TO BORROWINGS.  The Treasury Manager may 
elect (a) to continue a Fixed Rate Borrowing of one type, or a portion 
thereof, as a Fixed Rate Borrowing of the then existing type, or (b) may 
elect to convert a Fixed Rate Borrowing, or a portion thereof, to a Borrowing 
of another type or (c) elect to convert a Floating Rate Borrowing, or a 
portion thereof, to a Fixed Rate Borrowing, in each case by giving notice 
thereof to the Agent in substantially the form of Exhibit G hereto at the 
principal office of the Agent not later than 10:00 a.m. Detroit time (i) 
three Interbank Business Days prior to the date any such 

                                         -17-

<PAGE>

continuation of or conversion to an Interbank Offered Rate Borrowing is to be 
effective and (ii) the date such continuation or conversion is to be 
effective in all other cases, PROVIDED that an outstanding Fixed Rate 
Borrowing may only be converted on the last day of the then current Interest 
Period with respect to such Borrowing, and PROVIDED, FURTHER, if a 
continuation of a Borrowing as, or a conversion of a Borrowing to, a Fixed 
Rate Borrowing is requested, such notice shall also specify the Interest 
Period to be applicable thereto upon such continuation or conversion.  The 
Agent, on the day any such notice is given, shall provide notice of such 
election to the Banks.  If the Treasury Manager shall not timely deliver such 
a notice with respect to any outstanding Fixed Rate Borrowing, the Borrower 
shall be deemed to have elected to convert such Fixed Rate Borrowing to a 
Floating Rate Borrowing on the last day of the then current Interest Period 
with respect to such Borrowing.

    2.9   LIMITATION OF REQUESTS AND ELECTIONS.  Notwithstanding any other 
provision of this Agreement to the contrary, if, upon receiving a request for 
a Fixed Rate Borrowing pursuant to Section 2.5, or a request for a 
continuation of a Fixed Rate Borrowing as a Fixed Rate Borrowing of the then 
existing type, or a request for conversion of a Fixed Rate Borrowing of one 
type to a Fixed Rate Borrowing of another type, or a request for a conversion 
of a Floating Rate Borrowing to a Fixed Rate Borrowing pursuant to Section 
2.8, (a) in the case of any Interbank Offered Rate Borrowing, deposits in 
Dollars for periods comparable to the Interest Period elected by the Borrower 
are not available to any Bank in the relevant Interbank or secondary market 
and such Bank has provided to the Agent and the Borrowers a certificate 
prepared in good faith to that effect, or (b) any Bank reasonably determines 
that the Interbank Offered Rate will not adequately and fairly reflect the 
cost to such Bank of making, funding or maintaining the related Interbank 
Offered Rate Loan and such Bank has provided to the Agent and the Borrowers a 
certificate prepared in good faith to that effect, or (c) by reason of 
national or international financial, political or economic conditions or by 
reason of any applicable law, treaty, rule or regulation (whether domestic or 
foreign) now or hereafter in effect, or the interpretation or administration 
thereof by any governmental authority charged with the interpretation or 
administration thereof, or compliance by any Bank with any directive of such 
authority (whether or not having the force of law), including without 
limitation exchange controls, it is impracticable, unlawful or impossible for 
any Bank (i) to make or fund the relevant Fixed Rate Borrowing or (ii) to 
continue such Fixed Rate Borrowing as a Fixed Rate Borrowing of the then 
existing type or (iii) to convert a Loan to such a Fixed Rate Loan, and such 
Bank has provided to the Agent and the Borrowers a certificate prepared in 
good faith to that effect, then the Borrowers shall not be entitled, so long 
as such circumstances continue, to request a Fixed Rate Borrowing of the 
affected type pursuant to Section 2.5 or a continuation of or conversion to a 
Fixed Rate Borrowing of the affected type pursuant to Section 2.8.  In the 
event that such circumstances no longer exist, the Banks shall again honor 
requests, subject to this Agreement, for Fixed Rate Borrowings of the 
affected type pursuant to Section 2.5, and requests for continuations of and 
conversions to Fixed Rate Borrowings of the affected type pursuant to Section 
2.8.

    2.10  MINIMUM AMOUNTS; LIMITATION ON NUMBER OF BORROWINGS.  Except for 
(a) Borrowings and conversions thereof which exhaust the entire remaining 
amount of the Commitments, and (b) conversions or payments required pursuant 
to Section 3.1(b) or Section 

                                         -18-

<PAGE>

3.7, each Loan and each continuation or conversion pursuant to Section 2.8 
and each prepayment thereof shall be in a minimum amount of, with respect to 
Interbank Officered Rate Loans $1,000,000 and in integral multiples thereof 
and, with respect to Floating Rate Loans or Negotiated Rate Loans, $500,000 
and in integral multiples of $100,000. 

    2.11  TREASURY MANAGER.  Each Borrower authorizes the Treasury Manager to 
act as its manager in making requests and in carrying out as its manager and 
on its behalf all other functions conferred on the Treasury Manager under 
this Agreement and all other ancillary functions.  Each Borrower further 
agrees that the Treasury Manager may nominate any Borrower as the Designated 
Borrower, and agrees that the Loans allocated to it, and all other acts 
carried out by the Treasury Manager falling within its authority, shall be 
conclusive and binding on it  and all parties.  Neither any Bank nor the 
Agent is or shall be deemed to be concerted as to the Treasury Manager's 
compliance or otherwise with instructions from any  Borrower.  The content of 
each request and every other notice delivered by the Treasury Manager shall 
be irrevocable, and the Agent and the Banks shall be entitled to rely fully 
on their content. 

                                      ARTICLE 3.
                               PAYMENTS AND PREPAYMENTS

    3.1   PRINCIPAL PAYMENTS.

          (a) Unless earlier payment is required under this Agreement, the 
Borrowers shall pay to the Banks on the Termination Date the entire 
outstanding principal amount of the Loans.

          (b) The Borrowers may at any time and from time to time prepay all 
or a portion of the Loans without premium or penalty, provided that (i) a 
Borrower may not prepay any portion of any Loan as to which an election for 
continuation of or conversion to a Fixed Rate Loan is pending pursuant to 
Section 2.8, and (ii) unless earlier payment is required under this Agreement 
(other than prepayments required pursuant to Section 5.1(g), 5.2(f)(i) and 
6.2) or unless Borrower pays all amounts required pursuant to Section 3.8, 
any Fixed Rate Loan may only be prepaid on the last day of the then current 
Interest Period with respect to such Loan and (iii) such prepayment shall 
only be permitted if the Treasury Manager shall have given notice thereof on 
the Business Day of such prepayment with respect to prepayment of Floating 
Rate Loans and Negotiated Rate Loans and not less than three Interbank 
Business Days' notice thereof with respect to prepayment of Interbank Offered 
Rate Loans, such notice specifying the Loan or portion thereof to be so 
prepaid and shall have paid to the Banks, together with such prepayment of 
principal, all accrued interest to the date of payment on such Loan or 
portion thereof so prepaid and all amounts owing to the Banks under Section 
3.8 in connection with such prepayment.  Upon the giving of such notice, the 
aggregate principal amount of such Loan or portion thereof so specified in 
such notice, together with such accrued interest and other amounts, shall 
become due and payable on the specified date.

                                         -19-

<PAGE>

    3.2   INTEREST PAYMENTS.  The Borrowers shall pay interest to the Banks 
on the unpaid principal amount of each Loan, for the period commencing on the 
date such Loan is made until such Loan is paid in full, on each Interest 
Payment Date and at maturity (whether at stated maturity, by acceleration or 
otherwise), and thereafter on demand, at the following rates per annum:

          (a) With respect to Revolving Credit Loans:

              (i)   During such periods that such Loan is a Floating Rate 
Loan, the Floating Rate.

              (ii)  During such periods that such Loan is an Interbank 
Offered Rate Loan, the Interbank Offered Rate applicable to such Loan for 
each related Interbank Interest Period.  

          (b) With respect to Swing Line Loans:

              (i)   During such periods that such Loan is an Interbank 
Offered Rate Loan, the Interbank Offered Rate.

              (ii)  During such periods that such Loan is a Negotiated Rate 
Loan, the Negotiated Rate.

Notwithstanding the foregoing paragraphs (a) and (b), the Borrowers shall pay 
interest on demand at the Overdue Rate on the outstanding principal amount of 
any Loan and any other amount payable by the Borrowers hereunder (other than 
interest) on and after an Event of Default.

    3.3   PAYMENT METHOD.

          (a) All payments to be made by the Borrowers hereunder will be made 
to the Agent for the account of the Banks in Dollars and in immediately 
available, freely transferable, cleared funds, not later than 2:00 p.m. 
Detroit time on the date on which such payment shall become due to the Agent 
at the address of its principal office specified in Section 8.2.  Payments to 
be made in Dollars received after 2:00 p.m. Detroit time shall be deemed to 
be payments made prior to 2:00 p.m. Detroit time on the next succeeding 
Business Day. Each Borrower hereby authorizes the Agent to charge its account 
with the Agent in order to cause timely payment of amounts due hereunder to 
be made (subject to sufficient funds being available in such account for that 
purpose).

          (b) At the time of making each such payment, a Borrower shall, 
subject to the other terms and conditions of this Agreement, specify to the 
Agent that Borrowing or other obligation of the Borrowers hereunder to which 
such payment is to be applied.  In the event that a Borrower fails to so 
specify the relevant obligation or if an Event of Default shall have occurred 
and be continuing, the Agent may apply such payments as it may determine in 
its sole discretion to obligations of the Borrowers to the Banks arising 
under this Agreement.  

                                         -20-

<PAGE>

          (c) On the day such payments are deemed received, the Agent shall 
promptly remit to the Banks their pro rata shares of such payments in 
immediately available funds to the Banks at their respective address 
specified for notices pursuant to Section 8.2.  Such pro rata shares shall be 
determined with respect to each such Bank, (i) in the case of payments of 
principal and interest on any Borrowing, by the ratio which the outstanding 
principal balance of its Loan included in such Borrowing bears to the 
outstanding principal balance of the Loans of all of the Banks included in 
such Borrowing  and (ii) in the case of fees paid pursuant to Section 2.4 and 
other amounts payable hereunder (other than the Agent's fees payable pursuant 
to Section 2.4(b) and amounts payable to any Bank under Section 3.6 or 3.8) 
by the ratio which the Commitment of such Bank bears to the Commitments of 
all the Banks.

    3.4   NO SETOFF OR DEDUCTION.

          (a) All such payments shall be made free and clear of any present 
or future taxes or withholdings and without any set-off or counter claim or 
any restriction or condition or deduction whatsoever.  The Borrowers shall 
indemnify the Agent and each Bank against any taxes or charges (other than on 
net overall income) which may be claimed from it in respect of the Loans or 
any of them or any sum payable by the Borrowers or any of them hereunder and 
against any costs, charges and expenses or liabilities in respect of such 
claim and such indemnity shall survive the termination of the Commitments.

          (b) If at any time any Borrower is required by law or by any 
directive or order of any court of competent jurisdiction to make any 
deduction or withholding of whatsoever nature from any payment due under this 
Agreement or any of the Loan Documents, such Borrower will ensure that the 
same does not exceed the minimum liability therefor and will (a) pay to any 
Bank on request such additional amount as such Bank certifies will result in 
the net amount received by it after all deductions being equal to the full 
amount which would have been receivable had there been no deduction or 
withholding and (b) pay forthwith to the relevant authorities the full amount 
of the deduction or withholding and deliver to the Agent such an official 
receipt, certificate or other proof evidencing the amount paid in respect of 
such deduction or withholding.  Any additional amount paid under this 
sub-clause shall not be treated as interest but as agreed compensation.

          (c) If any payment by any Borrower is made to or for the account of 
any Bank after deduction for or on account of tax, and additional payments 
are made by any Borrower then, if any Bank shall receive or be granted a 
credit against or remission for such tax, such Bank shall, to the extent that 
it can do so without prejudice to the retention of the amount of such credit 
or remission, reimburse to such Borrower such amount as such Bank shall, in 
its absolute opinion, have concluded to be attributable to the relevant tax 
or deduction or withholding.  Nothing herein contained shall interfere with 
the right of any Bank to arrange its affairs in whatever manner it thinks fit 
and, in particular, the Banks shall not be under any obligation to claim 
relief from its corporation profits or similar tax liability in respect of 
such tax in priority to any other claims, reliefs, credits or deductions 
available to it nor oblige any Bank to disclose any information relating to 
its tax affairs.  Such reimbursement shall be made as soon as 

                                         -21-

<PAGE>

reasonably practical upon such Bank certifying that the amount of such credit 
or remission has been received by it.

    3.5   PAYMENT ON NON-BUSINESS DAY; PAYMENT COMPUTATIONS.  Except as 
otherwise provided in this Agreement to the contrary, whenever any 
installment of principal of, or interest on, any Loan or any other amount due 
hereunder becomes due and payable on a day which is not a Business Day, the 
maturity thereof shall be extended to the next succeeding Business Day and, 
in the case of any installment of principal, interest shall be payable 
thereon at the rate per annum determined in accordance with this Agreement 
during such extension. Computations of interest and other amounts due under 
this Agreement shall be made on the basis of a year of 360 days (or 365 or 
366 days, as the case may be, when determining the Floating Rate) for the 
actual number of days elapsed, including the first day but excluding the last 
day of the relevant period.

    3.6   ADDITIONAL COSTS.

          (a) In the event that any applicable law, treaty, rule or 
regulation (whether domestic or foreign) now or hereafter in effect and 
whether or not presently applicable to any Bank or the Agent, or any 
interpretation or administration thereof by any governmental authority 
charged with the interpretation or administration thereof, or compliance by 
any Bank or the Agent with any directive of any such authority (whether or 
not having the force of law), shall (i) affect the basis of taxation of 
payments to any Bank or the Agent of any amounts payable by any Borrower 
under this Agreement (other than taxes imposed on the overall net income of 
the Bank or the Agent, by the jurisdiction, or by any political subdivision 
or taxing authority of any such jurisdiction, in which any Bank or the Agent, 
as the case may be, has its principal office), or (ii) shall impose, modify 
or deem applicable any reserve, special deposit or similar requirement 
against assets of, deposits with or for the account of, or credit extended by 
any Bank or the Agent, as the case may be, or (iii) shall impose any other 
condition with respect to this Agreement, the Commitments, the Notes or the 
Loans, and the result of any of the foregoing is to increase the cost to any 
Bank or the Agent, as the case may be, of making, funding or maintaining any 
Fixed Rate Loan or to reduce the amount of any sum receivable by any Bank or 
the Agent, thereon, then the Borrowers shall pay to such Bank or the Agent, 
as the case may be, from time to time, upon request by such Bank (with a copy 
of such request to be provided to the Agent) or the Agent, additional amounts 
sufficient to compensate such Bank or the Agent, as the case may be, for such 
increased cost or reduced sum receivable to the extent, in the case of any 
Fixed Rate Loan, such Bank or the Agent, as the case may be, is not 
compensated therefor in the computation of the interest rate applicable to 
such Fixed Rate Loan.  Each Bank or the Agent, as the case may be, seeking 
compensation hereunder shall deliver to the Borrowers a statement setting 
forth (i) such increased cost or reduced sum receivable as such Bank or the 
Agent, as the case may be, has calculated in good faith, (ii) a description 
of the event giving rise thereto, (iii) a calculation in reasonable detail of 
the amounts requested and (iv) a statement that such Bank or the Agent, as 
the case may be, has not allocated to its Commitment, Borrowings or 
outstanding Loans a proportionately greater amount than is attributable to 
each of its other credit extensions that are affected similarly by compliance 
by such Bank or the Agent, as the case may be, whether or not such Bank or 
the Agent, as the case may be, allocates any portion of such amount to such 

                                         -22-

<PAGE>

other commitments or credit extensions.  Such statement as to the amount of 
such increased cost or reduced sum receivable, prepared in good faith and in 
reasonable detail by such Bank or the Agent, as the case may be, and 
submitted by such Bank or the Agent, as the case may be, to the Borrowers, 
shall be conclusive and binding for all purposes absent manifest error in 
computation.

          (b) In the event that any applicable law, treaty, rule or 
regulation (whether domestic or foreign) now or hereafter in effect and 
whether or not presently applicable to any Bank or the Agent, but applicable 
to banks or financial institutions generally, or any interpretation or 
administration thereof by any governmental authority charged with the 
interpretation or administration thereof, or compliance by any Bank or the 
Agent with any directive of any such authority (whether or not having the 
force of law), including any risk-based capital guidelines, affects the 
amount of capital required or expected to be maintained by such Bank or the 
Agent (or any corporation controlling such Bank or the Agent) and such Bank 
or the Agent, as the case may be, determines that the amount of such capital 
is increased by or based upon the existence of such Bank's or the Agent's 
obligations hereunder and such increase has the effect of reducing the rate 
of return on such Bank's or the Agent's (or such controlling corporation's) 
capital as a consequence of such obligations hereunder to a level below that 
which such Bank or the Agent (or such controlling corporation) could have 
achieved but for such circumstances (taking into consideration its policies 
with respect to capital adequacy) by an amount deemed by such Bank or the 
Agent to be material, then the Borrowers shall pay to such Bank or the Agent, 
as the case may be, from time to time, upon request by such Bank (with a copy 
of such request to be provided to the Agent) or the Agent, additional amounts 
sufficient to compensate such Bank or the Agent (or such controlling 
corporation) for any reduced rate of return which such Bank or the Agent 
reasonably determines to be allocable to the existence of such Bank's or the 
Agent's obligations hereunder.  Each Bank or the Agent, as the case may be, 
seeking compensation hereunder shall deliver to the Borrowers a statement 
setting forth (i) such increased cost or reduced sum receivable as such Bank 
or the Agent, as the case may be, has calculated in good faith, (ii) a 
description of the event giving rise thereto, (iii) a calculation in 
reasonable detail of the amounts requested and (iv) a statement that such 
Bank or the Agent, as the case may be, has not allocated to its Commitment, 
Borrowings or outstanding Loans a proportionately greater amount than is 
attributable to each of its other credit extensions that are affected 
similarly by compliance by such Bank or the Agent, as the case may be, 
whether or not such Bank or the Agent, as the case may be, allocates any 
portion of such amount to such other commitments or credit extensions.  Such 
statement as to the amount of such compensation, prepared in good faith and 
in reasonable detail by such Bank or the Agent, as the case may be, and 
submitted by such Bank or the Agent to the Borrowers, shall be conclusive and 
binding for all purposes absent manifest error in computation.

    3.7   ILLEGALITY AND IMPOSSIBILITY.  In the event that any applicable 
law, treaty, rule or regulation (whether domestic or foreign) now or 
hereafter in effect and whether or not presently applicable to any Bank, or 
any interpretation or administration thereof by any governmental authority 
charged with the interpretation or administration thereof, or compliance by 
any Bank with any directive of such authority (whether or not having the 
force of law), including without limitation exchange controls, shall make it 
unlawful or impossible for any Bank to maintain any Fixed Rate Loan under 
this Agreement or shall make it impracticable, 

                                         -23-

<PAGE>

unlawful or impossible for, or shall in any way limit or impair the ability 
of, any Borrower to make or any Bank to receive any payment under this 
Agreement at the place specified for payment hereunder, or to freely convert 
any amount paid into Dollars at market rates of exchange or to transfer any 
amount paid or so converted to the address of its principal office specified 
in Section 8.2, the Borrowers shall upon receipt of notice thereof from such 
Bank, repay in full the then outstanding principal amount of each Fixed Rate 
Loan so affected, together with all accrued interest thereon to the date of 
payment and all amounts owing to such Bank under Section 3.8, (a) on the last 
day of the then current Interest Period applicable to such Loan if such Bank 
may lawfully continue to maintain such Loan to such day, or (b) immediately 
if such Bank may not continue to maintain such Loan to such day.  

    3.8   INDEMNIFICATION.  If any Borrower makes any payment of principal 
with respect to any Loan on any other date than the last day of an Interest 
Period applicable thereto, (whether pursuant to Section 3.7 or Section 6.2 or 
otherwise), or if any Borrower fails to borrow any Loan after notice has been 
given to the Banks in accordance with Section 2.5, the Borrowers shall 
reimburse each Bank on demand for any resulting net loss or expense incurred 
by each such Bank after giving credit for any earnings or other quantifiable 
financial benefit to such Bank from such Bank's investment or other amounts 
prepaid or not reborrowed, including without limitation any loss incurred in 
obtaining, liquidating or employing deposits from third parties, whether or 
not such Bank shall have funded or committed to fund such Loan.  A statement 
as to the amount of such loss or expense, prepared in good faith and in 
reasonable detail by such Bank and submitted by such Bank to the Borrowers, 
shall be conclusive and binding for all purposes absent manifest error in 
computation, provided that before delivery of such statement, each Bank shall 
use reasonable efforts in accordance with its normal practices and procedures 
to reduce amounts payable under this Section.  Calculation of all amounts 
payable to such Bank under this Section 3.8 shall be made as though such Bank 
shall have actually funded or committed to fund the relevant Loan through the 
purchase of an underlying deposit in an amount equal to the amount of such 
Loan and having a maturity comparable to the related Interest Period; 
PROVIDED, HOWEVER, that such Bank may fund any Loan in any manner it sees fit 
and the foregoing assumption shall be utilized only for the purpose of 
calculation of amounts payable under this Section 3.8.

    3.9   RIGHT OF BANKS TO FUND THROUGH OTHER OFFICES.  Each Bank may 
perform its Commitment to fund its PRO RATA share of any Loan or, with 
respect to the Swing Line Bank, any Swing Line Loan to the Borrowers by 
causing an affiliate of such Bank to provide such funds in accordance with 
the terms of this Agreement. For all purposes of this Agreement, any amounts 
so advanced shall be deemed to have been advanced by such Bank, and the 
obligation of the Borrowers to repay such amounts shall be as provided in 
this Agreement.

                                         -24-

<PAGE>

                                      ARTICLE 4.
                            REPRESENTATIONS AND WARRANTIES

    Each Borrower represents and warrants to the Agent and the Banks that:

    4.1   CORPORATE EXISTENCE AND POWER.  Each Borrower is a Person duly 
organized, validly existing and in good standing under the laws of the state 
or other political subdivision of its jurisdiction of incorporation or 
organization, as the case may be, and is duly qualified to do business, and 
is in good standing, in all additional jurisdictions where such qualification 
is necessary under applicable law, except where the failure to be so 
qualified would not have a material adverse effect on the business and 
financial condition of the Company and its Subsidiaries taken as a whole.  
Each Borrower has all requisite corporate power to own or lease the 
properties used in its business and to carry on its business as now being 
conducted and as proposed to be conducted, and to execute and deliver the 
Loan Documents to which it is a party and to engage in the transactions 
contemplated by the Loan Documents. 

    4.2   CORPORATE AUTHORITY.  The execution, delivery and performance by 
each Borrower of the Loan Documents to which it is a party have been duly 
authorized by all necessary corporate action and are not in contravention of 
any material law, rule or regulation, or any judgment, decree, writ, 
injunction, order or award of any arbitrator, court or governmental 
authority, or of the terms of such Borrower's charter or by-laws, or of any 
material contract or undertaking to which the Borrower is a party or by which 
the Borrower or its property is bound or affected and do not result in the 
imposition of any Lien except for Permitted Liens.

    4.3   BINDING EFFECT.  The Loan Documents when delivered hereunder will 
be, legal, valid and binding obligations of each Borrower party thereto 
enforceable against each Borrower in accordance with their respective terms; 
except as such enforceability may be limited by bankruptcy, insolvency, 
reorganization, moratorium or other similar laws relating to creditors' 
rights and except that the remedy of specific performance and injunctive and 
other forms of equitable relief are subject to equitable defenses and to the 
discretion of the court before which any proceedings may be brought.

    4.4   SUBSIDIARIES.  SCHEDULE 4.4 hereto correctly sets forth the 
corporate name, jurisdiction of incorporation and ownership of each 
Subsidiary of the Company. Each Subsidiary and each corporation becoming a 
Subsidiary of the Company after the date hereof is and will be a corporation 
duly organized, validly existing and in good standing under the laws of its 
jurisdiction of incorporation and is and will be duly qualified to do 
business in each additional jurisdiction where such qualification is or may 
be necessary under applicable law, except where the failure to be so 
qualified would not have a material adverse effect on the business or 
financial condition of the Company and its Subsidiaries taken as a whole.

    4.5   LITIGATION.  Except as set forth in SCHEDULE 4.5 hereto, there is 
no action, suit or proceeding pending or, to the best of each Borrower's 
knowledge, threatened against or affecting any Borrower or any of their 
respective Subsidiaries before or by any court, 

                                         -25-

<PAGE>

governmental authority or arbitrator, which if adversely decided would 
result, either individually or collectively, in any material adverse change 
in the business, properties, operations or financial condition of the Company 
and its Subsidiaries taken as a whole or in any material adverse effect on 
the legality, validity or enforceability of any Loan Document and, to the 
best of the Company's knowledge, there is no basis for any such action, suit 
or proceeding.

    4.6   FINANCIAL CONDITION.  The consolidated balance sheet of the Company 
and its Subsidiaries and the consolidated statements of income and cash flow 
of the Company and its Subsidiaries for the fiscal year ended December 31, 
1995 and reported on by Ernst & Young, independent certified public 
accountants, and the consolidated balance sheet of the Company and its 
Subsidiaries and the consolidated statements of income and cash flow of the 
Company and its Subsidiaries for the nine-month period ended September 30, 
1996, copies of which have been furnished to the Banks, fairly present, and 
the financial statements of the Company and its Subsidiaries delivered 
pursuant to Section 5.1(d) will fairly present the consolidated financial 
position of the Company and its Subsidiaries as at the respective dates 
thereof, and the consolidated results of operations of the Company and its 
Subsidiaries for the respective periods indicated, all in accordance with 
generally accepted accounting principles consistently applied (subject, in 
the case of said interim statements, to normal year-end adjustments).  There 
has been no material adverse change in the financial condition of the Company 
and its Subsidiaries taken as a whole since December 31, 1995.  There is no 
material Contingent Liability of the Company that is not reflected in such 
financial statements or in the notes thereto.

    4.7   USE OF LOANS.  Each Borrower will use the proceeds of the Loans for 
the Healthdyne Acquisition, including purchases of capital stock on the open 
market, for other Acquisitions and for its other general corporate purposes.  
No Borrower nor any of their respective Subsidiaries extends or maintains, in 
the ordinary course of business, credit for the purpose, whether immediate, 
incidental, or ultimate, of buying or carrying margin stock (within the 
meaning of Regulation U of the Board of Governors of the Federal Reserve 
System), and no part of the proceeds of any Loan will be used for the 
purpose, whether immediate, incidental, or ultimate, of buying or carrying 
any such margin stock or maintaining or extending credit to others for such 
purpose.  After applying the proceeds of each Loan, such margin stock will 
not constitute more than 25% of the value of the assets (either of any 
Borrower alone or of the Borrowers and their respective Subsidiaries on a 
consolidated basis) that are subject to any provisions of this Agreement that 
may cause the Loans to be deemed secured, directly or indirectly, by margin 
stock. 

    4.8   CONSENTS, ETC.  Except for such consents, approvals, 
authorizations, declarations, registrations or filings delivered by the 
Company pursuant to Section 2.6(g), if any, each of which is in full force 
and effect, no consent, approval or authorization of or declaration, 
registration or filing with any governmental authority or any nongovernmental 
person, including without limitation any creditor, lessor or stockholder of 
any Borrower, is required on the part of any Borrower in connection with the 
execution, delivery and performance of the Loan Documents or the transactions 
contemplated hereby or as a condition to the legality, validity or 
enforceability of the Loan Documents except where the failure to obtain such 
consents, approvals, authorizations, declarations, registrations or filings 
would not have a material adverse effect on the Company and its Subsidiaries, 
taken as a whole.

                                         -26-

<PAGE>

    4.9   TAXES.  The Company has filed all material tax returns (federal, 
state and local) required to be filed and have paid all taxes shown thereon 
to be due, including interest and penalties, or have established adequate 
financial reserves on their respective books and records for payment thereof 
except where the failure to file such returns, pay such taxes or establish 
such reserves would not have a material adverse effect on the Company and its 
Subsidiaries, taken as a whole.

    4.10  TITLE TO PROPERTIES.  Except as otherwise disclosed in the latest 
balance sheet delivered pursuant to this Agreement, the Company or one or 
more of its Subsidiaries have good and marketable fee simple title to all of 
the real property to the best of the Company's knowledge absent manifest 
error, and a valid and indefeasible ownership interest in all of the other 
properties and assets reflected in said balance sheet or subsequently 
acquired by the Company or any such Subsidiary material to the business or 
financial condition of the Company and its Subsidiaries taken as a whole, 
except for title defects that do not have a material adverse effect.  All of 
such properties and assets are free and clear of any Lien, except for 
Permitted Liens.

    4.11  ERISA.  The Borrowers, their respective Subsidiaries, their ERISA 
Affiliates and their respective Plans are in substantial compliance in all 
material respects with those provisions of ERISA and of the Code which are 
applicable with respect to any Plan.  No Prohibited Transaction and no 
Reportable Event has occurred with respect to any such Plan which would cause 
an Event of Default.  No Borrower, any of their respective Subsidiaries nor 
any of their ERISA Affiliates is an employer with respect to any 
Multiemployer Plan. The Borrowers, their respective Subsidiaries and their 
ERISA Affiliates have met the minimum funding requirements under ERISA and 
the Code with respect to each of their respective Plans, if any, and have not 
incurred any liability to the PBGC, other than premiums which are not yet due 
and payable.  The execution, delivery and performance of the Loan Documents 
does not constitute a Prohibited Transaction.  There is no material unfunded 
benefit liability, determined in accordance with Section 4001(a)(18) of 
ERISA, with respect to any Plan of any Borrower, their respective 
Subsidiaries or their ERISA Affiliates.

    4.12  ENVIRONMENTAL AND SAFETY MATTERS.  Except as disclosed on Schedule 
4.12, each Borrower and each Subsidiary of each Borrower is in substantial 
compliance with all material federal, state and local laws, ordinances and 
regulations relating to safety and industrial hygiene or to the environmental 
condition, including without limitation all material Environmental Laws in 
jurisdictions in which any Borrower or any such Subsidiary owns or operates, 
or has owned or operated, a facility or site, or arranges or has arranged for 
disposal or treatment of hazardous substances, solid waste, or other wastes, 
accepts or has accepted for transport any hazardous substances, solid wastes 
or other wastes or holds or has held any interest in real property or 
otherwise.  Except as disclosed on Schedule 4.12, no written demand, claim, 
notice, suit, suit in equity, action, administrative action, investigation or 
inquiry whether brought by any governmental authority, private person or 
otherwise, arising under, relating to or in connection with any Environmental 
Laws is pending or, to the best of each Borrower's knowledge, threatened 
against any Borrower or any such Subsidiary, any real property in which any 
Borrower or any such Subsidiary holds or has held an interest or any past or 
present operation of any Borrower or any such Subsidiary which would have a 
material adverse effect on 

                                         -27-

<PAGE>

the Company and its Subsidiaries, taken as a whole.  Neither any Borrower nor 
any Subsidiary of any Borrower (a) is the subject of any federal or state 
investigation evaluating whether any remedial action is needed to respond to 
a release of any toxic substances, radioactive materials, hazardous wastes or 
related materials into the environment, or (b) has received any notice of any 
toxic substances, radioactive materials, hazardous waste or related materials 
in, or upon any of its properties in violation of any Environmental Laws.  As 
to such matters disclosed on Schedule 4.12, none will have a material adverse 
effect on the financial condition or business of the Company and its 
Subsidiaries taken as a whole.  Except as set forth on Schedule 4.12, to the 
best of each Borrower's knowledge, no release, threatened release or disposal 
of hazardous waste, solid waste or other wastes is occurring or has occurred 
on, under or to any real property in which any Borrower or any of their 
respective Subsidiaries holds any interest or performs any of its operations, 
in violation of any Environmental Law.

    4.13  NO MATERIAL ADVERSE CHANGE.  Neither the Company nor any of its 
Subsidiaries has received any notice, citation or communication of the nature 
referred to in Section 5.1(d)(i), except in respect of such matters as have 
been or are being remediated in all material respects or are being contested 
or remediated in good faith, and, in the case of any such matter being so 
contested or remediated, and as of the date of this Agreement, adequate 
provision for all material costs of any remediation is reflected in the 
financial statements referred to in Section 4.6 of this Agreement, and in 
respect of any such notice, citation or communication received after the date 
of this Agreement, will be reflected in the subsequent financial statements 
furnished to the Agent and the Banks pursuant to Sections 5.1(d)(ii) and 
5.1(d)(iii).

    4.14  HEALTHDYNE ACQUISITION.  Simultaneously with any Loan for the 
Healthdyne Acquisition, all transactions contemplated pursuant to the 
Healthdyne Acquisition Document to consummate the Healthdyne Acquisition will 
be complete in accordance therewith and in accordance with all applicable 
laws and regulations.  All governmental and non-governmental consents, 
approvals, authorizations, declarations, registrations and filings required 
in connection with the Healthdyne Acquisition or otherwise in connection with 
the Healthdyne Acquisition Documents or the transactions contemplated thereby 
or as a condition to the legality, validity or enforceability of the 
Healthdyne Acquisition or the Healthdyne Acquisition Documents have been 
obtained and are in full force and effect.

                                      ARTICLE 5.
                                      COVENANTS

    5.1   AFFIRMATIVE COVENANTS.  Each Borrower covenants and agrees that, 
until the Termination Date and thereafter until irrevocable payment in full 
of the principal of and accrued interest on the Notes and the performance of 
all other obligations of the Borrowers under this Agreement, unless the 
Required Banks shall otherwise consent in writing, it shall, and shall cause 
each of its Subsidiaries to:  

          (a) PRESERVATION OF CORPORATE EXISTENCE, ETC.  Do or cause to be 
done all things necessary to preserve, renew and keep in full force and 
effect its legal existence, except to the extent permitted by Section 5.2(h), 
and its qualification as a foreign corporation in good 

                                         -28-

<PAGE>

standing in each jurisdiction in which such qualification is necessary under 
applicable law, other than where failure to so qualify will not have a 
material adverse effect on the Company and its Subsidiaries taken as a whole.

          (b) COMPLIANCE WITH LAWS, ETC.  Comply in all material respects 
with all applicable laws, rules, regulations and orders of any governmental 
authority, whether federal, state, local or foreign (including without 
limitation ERISA, the Code and Environmental Laws), in effect from time to 
time; and pay and discharge promptly when due all taxes, assessments and 
governmental charges or levies imposed upon it or upon its income, revenues 
or property, before the same shall become delinquent or in default, as well 
as all lawful claims for labor, materials and supplies or otherwise, which, 
if unpaid, might give rise to Liens upon such properties or any portion 
thereof, except to the extent that payment of any of the foregoing is then 
being contested in good faith by appropriate legal proceedings, and except 
where failure to comply would not have a material adverse effect on the 
Company and its Subsidiaries taken as a whole.

          (c) MAINTENANCE OF PROPERTIES; INSURANCE.  Maintain, preserve and 
protect all property that is material to the conduct of the business of any 
Borrower or any of their respective Subsidiaries and keep such property in 
good repair, working order and condition and from time to time make, or cause 
to be made all needful and proper repairs, renewals, additions, improvements 
and replacements thereto necessary in order that the business carried on in 
connection therewith may be properly conducted at all times in accordance 
with customary and prudent business practices for similar businesses; and, 
maintain in full force and effect insurance with responsible and reputable 
insurance companies or associations in such amounts, on such terms and 
covering such risks, as is usually carried by companies engaged in similar 
businesses and owning similar properties similarly situated and maintain in 
full force and effect public liability insurance, insurance against claims 
for personal injury or death or property damage occurring in connection with 
any of its activities or any properties owned, occupied or controlled by it, 
in such amount as it shall reasonably deem necessary.

          (d) REPORTING REQUIREMENTS.  Furnish to the Banks and the Agent the 
following:

              (i)    Promptly and in any event within five calendar days 
after becoming aware of the occurrence of (A) any Event of Default or 
Default, or (B) the commencement of any material litigation against, by or 
affecting any Borrower or any of their respective Subsidiaries which the 
Company would be required to report to the Securities and Exchange 
Commission, a statement of the chief financial officer of the Company setting 
forth details of such Event of Default or Default or such litigation and the 
action which such Borrower or such Subsidiary, as the case may be, has taken 
and proposes to take with respect thereto;

              (ii)   As soon as available and in any event within 50 days 
after the end of each of the first three fiscal quarters of each fiscal year 
of the Company, the consolidated balance sheet of the Company and its 
Subsidiaries as of the end of such quarter, and the related consolidated 
statements of income and cash flow for the period commencing at the end of 
the previous fiscal year and ending with the end of such quarter, setting 
forth in each case in comparative form the corresponding figures for the 
corresponding date or period of the 

                                         -29-

<PAGE>

preceding fiscal year, all in reasonable detail and duly certified (subject 
to normal year-end adjustments) by the chief financial officer of the Company 
as having been prepared in accordance with generally accepted accounting 
principles, together with a certificate of the chief financial officer of the 
Company stating (A) that no Event of Default or Default has occurred and is 
continuing or, if an Event of Default or Default has occurred and is 
continuing, a statement setting forth the details thereof and the action 
which the Company has taken and proposes to take with respect thereto, and 
(B) that a computation (which computation shall accompany such certificate 
and shall be in reasonable detail) showing compliance with Section 5.2(a), 
(b) and (c) hereof is in conformity with the terms of this Agreement; 

              (iii)  As soon as available and in any event within 90 days 
after the end of each fiscal year of the Company, a copy of the consolidated 
balance sheet of the Company and its Subsidiaries as of the end of such 
fiscal year and the related consolidated statements of income and cash flow 
of the Company and its Subsidiaries for such fiscal year, with a customary 
audit report of Ernst & Young, or other independent certified public 
accountants selected by the Company and acceptable to the Required Banks, 
without qualifications unacceptable to the Required Banks, together with (A) 
either (I) a written statement of the accountants that is making the 
examination necessary for their report or opinion they obtained no knowledge 
of the occurrence of any Default or Event of Default under this Agreement or 
(II) if they know of any Default or Event of Default, their written 
disclosure of its nature and status, provided that, the accountants shall not 
be liable directly or indirectly to anyone for any failure to obtain 
knowledge of any Default or Event of Default under this Agreement, and (B) a 
certificate of the chief financial officer of the Company stating (I) that no 
Event of Default or Default has occurred and is continuing or, if an Event of 
Default or Default has occurred and is continuing, a statement setting forth 
the details thereof and the action which the Company has taken and proposes 
to take with respect thereto, and (II) that a computation (which computation 
shall accompany such certificate and shall be in reasonable detail) showing 
compliance with Section 5.2(a), (b) and (c) hereof is in conformity with the 
terms of this Agreement; 

              (iv)   Promptly after the sending or filing thereof, copies of 
all reports, proxy statements and financial statements which the Company 
sends to or files with any of their respective security holders or any 
securities exchange or the Securities and Exchange Commission or any 
successor agency thereof;

              (v)    Promptly and in any event within 10 calendar days after 
receiving or becoming aware thereof (A) a copy of any notice of intent to 
terminate any Plan of any Borrower, their respective Subsidiaries or any 
ERISA Affiliate filed with the PBGC, (B) a statement of the chief financial 
officer of such Borrower setting forth the details of the occurrence of any 
Reportable Event with respect to any such Plan, (C) a copy of any notice that 
any Borrower, any of their respective Subsidiaries or any ERISA Affiliate may 
receive from the PBGC relating to the intention of the PBGC to terminate any 
such Plan or to appoint a trustee to administer any such Plan, or (D) a copy 
of any notice of failure to make a required installment or other payment 
within the meaning of Section 412(n) of the Code or Section 302(f) of ERISA 
with respect to any such Plan; 

                                         -30-

<PAGE>

              (vi)   Promptly and in any event within 14 days after the 
Merger, a schedule listing all Indebtedness of Healthdyne assumed by the 
Company or any Subsidiary in connection with the Merger;

              (vii)  Promptly, any amendment or modification to any 
Acquisition Document after the Effective Date, subject to the satisfactory 
review of the Agent; and

              (viii) Promptly, such other information respecting the 
business, properties, operations or condition, financial or otherwise, of any 
Borrower or any of their respective Subsidiaries as any Bank or the Agent may 
from time to time reasonably request. 

          (e) ACCOUNTING; ACCESS TO RECORDS, BOOKS, ETC.  Maintain a system 
of accounting established and administered in accordance with sound business 
practices to permit preparation of financial statements in accordance with 
generally accepted accounting principles and to comply with the requirements 
of this Agreement and, on and after an Event of Default, at any reasonable 
time and from time to time with prior notice to the Company, permit any Bank 
or the Agent or any agents or representatives thereof to examine and make 
copies of and abstracts from the records and books of account of, and visit 
the properties of, the Borrowers and their respective Subsidiaries, and to 
discuss the affairs, finances and accounts of the Borrowers and their 
respective Subsidiaries with their respective directors, officers, employees 
and independent auditors, provided that representatives of the Company 
selected by the Company are present during any such visit or discussion, and 
by this provision the Company does hereby authorize such persons to discuss 
such affairs, finances and accounts with any Bank or the Agent subject to the 
above terms and conditions.

          (f) STAMP TAXES.  The Company will pay all stamp taxes and similar 
taxes, if any, including interest and penalties, if any, payable in respect 
of the Notes.  The efficacy of this subsection shall survive the payment in 
full of the Notes.  

          (g) PROCEEDS FROM EQUITY OFFERING.  If the aggregate outstanding 
principal amount of Loans hereunder exceeds $100,000,000 at the time of any 
issuance or other sale of capital stock of the Company or any Subsidiary, the 
Company shall, or shall cause any such Subsidiary to, prepay the Loans by an 
amount equal to the lesser of (i) 50% of the Net Cash Proceeds from any such 
issuance or sale, or (ii) an amount equal to the amount by which the 
outstanding principal balance of the Loans at the time of such issuance or 
sale exceeds $100,000,000.

          (h) FURTHER ASSURANCES.  Will execute and deliver within 30 days 
after request therefor by the Required Banks or the Agent, all further 
instruments and documents and take all further action that may be necessary, 
in order to give effect to, and to aid in the exercise and enforcement of the 
rights and remedies of the Banks and the Agent under, this Agreement and the 
Notes.  In addition, the Company agrees to promptly notify the Agent of any 
person becoming a Subsidiary of the Company or any Guarantor after the 
Effective Date and, upon request of the Agent, cause such new Subsidiary to 
execute and deliver to the Banks and the 

                                         -31-

<PAGE>

Agent, a Guaranty together with other related documents described in Section 
2.6 and requested by the Agent.

    5.2   NEGATIVE COVENANTS.  Until the Termination Date and thereafter 
until irrevocable payment in full of the principal of and accrued interest on 
the Notes and the performance of all other obligations of each Borrower under 
this Agreement, the Company agrees that, unless the Required Banks shall 
otherwise consent in writing it shall not:

          (a) INTEREST COVERAGE RATIO.  Permit or suffer the Interest 
Coverage Ratio to be less than (i) during any quarter in which the ratio of 
Consolidated Funded Debt of the Company and its Subsidiaries to Consolidated 
Total Capitalization of the Company and its Subsidiaries is greater than 0.58 
to 1.00 but less than 0.68 to 1.00, 2.25 to 1.0 and (ii) at all other times, 
3.0 to 1.0; in each case calculated as of the end of each fiscal quarter for 
the four immediately preceding fiscal quarters.
         
          (b) NET WORTH.  Permit or suffer Consolidated Net Worth of the 
Company and its Subsidiaries at any time to be less than (i) $200,000,000 
plus (ii) 50% of the Consolidated Net Income of the Company and its 
Subsidiaries for each fiscal year of the Company, commencing on (A) if the 
Merger occurs or the aggregate amount of Loans outstanding hereunder exceed 
$100,000,000 on or before December 31, 1997, in either case, the fiscal year 
ending December 31, 1997; PROVIDED, that, the Company shall not be required 
to include any net income of the Company, its Subsidiaries or Healthdyne 
prior to the Merger or (B) in any other case, the fiscal year ending December 
31, 1998, provided that, if such Consolidated Net Income is negative for any 
fiscal year, then the amount added for such fiscal year shall be zero and 
shall not reduce the amount added for any other fiscal year.
         
          (c) FUNDED DEBT TO TOTAL CAPITALIZATION.  Permit or suffer the 
ratio of Consolidated Funded Debt of the Company and its Subsidiaries to 
Consolidated Total Capitalization of the Company and its Subsidiaries to 
exceed .68 to 1.0 at any time, decreasing to .65 to 1.0. on the earlier of 
(A) the date which is nine (9) months after the date of the Merger, or (B) 
the date which is nine (9) months after the date on which the aggregate 
amount of Loans outstanding hereunder exceed $100,000,000.

          (d) LIENS.  Create, incur or suffer to exist any Lien on any of the 
assets, rights, revenues or property, real, personal or mixed, tangible or 
intangible, whether now owned or hereafter acquired, of the Company or any of 
its Subsidiaries, other than:

              (i)    Liens for taxes not delinquent or for taxes being 
contested in good faith by appropriate proceedings and as to which adequate 
financial reserves have been established on its books and records; 

              (ii)   Liens (other than any Lien imposed by ERISA) created and 
maintained in the ordinary course of business which are not material in the 
aggregate, and which would not have a material adverse effect on the business 
or operations of the Company and its Subsidiaries taken as a whole and which 
constitute (A) pledges or deposits under worker's compensation laws, 
unemployment insurance laws or similar legislation, (B) good faith deposits 

                                         -32-

<PAGE>

in connection with bids, tenders, contracts or leases to which the Company or 
any of its Subsidiaries is a party for a purpose other than borrowing money 
or obtaining credit, including rent security deposits, (C) liens imposed by 
law, such as those of carriers, warehousemen and mechanics, if payment of the 
obligation secured thereby is not yet due, (D) Liens securing taxes, 
assessments or other governmental charges or levies not yet subject to 
penalties for nonpayment, and (E) pledges or deposits to secure public or 
statutory obligations of the Company or any of its Subsidiaries, or surety, 
customs or appeal bonds to which the Company or any of its Subsidiaries is a 
party;

              (iii)  Liens affecting real property which constitute minor 
survey exceptions or defects or irregularities in title, minor encumbrances, 
easements or reservations of, or rights of others for, rights of way, sewers, 
electric lines, telegraph and telephone lines and other similar purposes, or 
zoning or other restrictions as to the use of such real property, PROVIDED 
that all of the foregoing, in the aggregate, do not at any time materially 
detract from the value of said properties or materially impair their use in 
the operation of the businesses of the Company and its Subsidiaries taken as 
a whole;

              (iv)   Liens existing on the date hereof upon the same terms as 
the date hereof, but no extensions, renewals and replacements thereof shall 
be permitted, with each existing Lien securing Indebtedness in excess of 
$5,000,000 described in SCHEDULE 5.2 hereto;

              (v)    Liens granted by any Subsidiary in favor of the Company 
or any other Subsidiary;

              (vi)   The interest or title of a lessor under any lease 
otherwise permitted under this Agreement with respect to the property subject 
to such lease to the extent performance of the obligations of the Company or 
its Subsidiary thereunder is not delinquent; 

              (vii)  Liens assumed by the Company or any Subsidiary on the 
assets of Healthdyne in connection with the Healthdyne Acquisition; and

              (viii) Liens, other than Liens described in clauses (i) through 
(vii) above, securing Indebtedness in an aggregate amount not to exceed 10% 
of Consolidated Net Worth.

          (e) MERGER; ETC.  Merge or consolidate or amalgamate with any other 
person or take any other action having a similar effect, provided, however, 
(i) a Subsidiary of the Company may merge with the Company, provided that the 
Company shall be the surviving corporation, (ii) a Subsidiary of the Company 
may merge or consolidate with another Subsidiary of the Company and (iii) 
this Section 5.2(e) shall not prohibit any merger if the Company shall be the 
surviving or continuing corporation and, immediately after such merger, no 
Default or Event of Default shall exist or shall have occurred and be 
continuing. 

          (f) DISPOSITION OF ASSETS; ETC.  Sell, lease, license, transfer, 
assign or otherwise dispose of all or a substantial portion of its business, 
assets, rights, revenues or 

                                         -33-

<PAGE>

property, real, personal or mixed, tangible or intangible, whether in one or 
a series of transactions, other than inventory sold in the ordinary course of 
business upon customary credit terms and sales of scrap or obsolete material 
or equipment, PROVIDED, HOWEVER, that this Section 5.2(f) shall not prohibit 
(i) any sale of the receivable portfolio of Invacare Credit Corporation, a 
wholly-owned Subsidiary of the Company; PROVIDED, HOWEVER, if the aggregate 
outstanding principal amount of the Loans hereunder exceeds $100,000,000 at 
the time of any such sale, the Company shall prepay the Loans by an amount 
equal to the lesser of (A) 50% of the Net Cash Proceeds from such sale, or 
(B) an amount equal to the amount by which the outstanding principal balance 
of the Loans at the time of such issuance or sale exceeds $100,000,000; or 
(ii) any such sale, lease, license, transfer, assignment or other disposition 
if the aggregate book value (disregarding any write-downs of such book value 
other than ordinary depreciation and amortization) of all of the business, 
assets, rights, revenues and property disposed of after the date of this 
Agreement shall be less than 33% of the Consolidated Net Worth of the Company 
and its Subsidiaries, and if immediately after such transaction, no Default 
or Event of Default shall exist or shall have occurred and be continuing.  

          (g) NATURE OF BUSINESS.  Engage in any business if, as a result, 
the general nature of the business, taken on a consolidated basis, which 
would then be engaged in by the Company and its Subsidiaries would be 
substantially changed from the general nature of the business engaged in by 
the Company and its Subsidiaries on the date of this Agreement which is the 
manufacture, sale or lease of home medical and extended care equipment and 
related products.

          (h) HEALTHDYNE MINORITY INTEREST.  Maintain an equity interest in 
Healthdyne in an amount greater than 10% but less than 51% after the Company 
has ceased and abandoned plans to acquire a majority equity interest in 
Healthdyne.

          (i) NEGATIVE PLEDGE LIMITATION.  Enter into any agreement, with any 
person, other than the Banks pursuant hereto and under the 1994 Loan 
Agrement, which prohibits or limits the ability of any Borrower or any 
Guarantor to create, incur, assume or suffer to exist any Lien upon any of 
its assets, rights, revenues or property, real, personal or mixed, tangible 
or intangible, whether now owned or hereafter acquired, other than agreements 
evidencing Indebtedness in an aggregate amount less than $5,000,000 or any 
Indebtedness assumed in connection with any Acquisition, but no extension or 
renewal of such assumed Indebtedness containing such restriction shall be 
permitted.

                                      ARTICLE 6.
                                       DEFAULT

    6.1   EVENTS OF DEFAULT.  The occurrence of any one of the following 
events or conditions shall be deemed an "Event of Default" hereunder unless 
waived by the Required Banks or the Banks, as required pursuant to Section 
8.1:

                                         -34-

<PAGE>

          (a) NONPAYMENT OF PRINCIPAL.  Any Borrower shall fail to pay when 
due any principal of the Notes and such failure shall remain unremedied for 
five days; or

          (b) NONPAYMENT OF INTEREST.  Any Borrower shall fail to pay when 
due any interest or any fees or any other amount payable hereunder and such 
failure shall remain unremedied for five days; or 

          (c) MISREPRESENTATION.  Any representation or warranty made by any 
Borrower in Article 4 hereof, or by any Borrower or any Guarantor in any 
other Loan Document or any other certificate, report, financial statement or 
other document furnished by or on behalf of any Borrower or any Guarantor in 
connection with this Agreement shall prove to have been incorrect in any 
material respect when made or deemed made; or

          (d) CERTAIN COVENANTS.  Any Borrower shall fail to perform or 
observe any term, covenant or agreement contained in Section 5.2(a), (e) or 
(f) hereof; or

          (e) OTHER DEFAULTS.  Any Borrower shall fail to perform or observe 
any other term, covenant or agreement contained in this Agreement or any 
other Loan Document, and any such failure shall remain unremedied for 30 
calendar days; or

          (f) CROSS DEFAULT.  Any Borrower or any of their respective 
Subsidiaries shall fail to pay any part of the principal of, the premium, if 
any, or the interest on, or any other payment of money due under any of its 
Indebtedness (other than Indebtedness hereunder), beyond any period of grace 
provided with respect thereto, which individually or together with other such 
Indebtedness as to which any such failure exists has an aggregate outstanding 
principal amount in excess of $5,000,000; or any Borrower or any of their 
respective Subsidiaries shall fail to perform or observe any other term, 
covenant or agreement contained in any agreement, document or instrument 
evidencing or securing any such Indebtedness having such aggregate 
outstanding principal amount, or under which any such Indebtedness was issued 
or created, beyond any period of grace, if any, provided with respect thereto 
and such Borrower or such Subsidiary has been notified by the creditor of 
such default; and the effect of any such failure is either (i) to cause, or 
permit the holders of such Indebtedness (or a trustee on behalf of such 
holders) to cause, any payment of such Indebtedness to become due prior to 
its due date or (ii) to permit the holders of such Indebtedness (or a trustee 
on behalf of such holders) to elect a majority of the board of directors of 
the Company; or

          (g) JUDGMENTS.  One or more judgments or orders shall be rendered 
against or shall affect any Borrower or any of their respective Subsidiaries 
which causes or could cause a material adverse change in the financial 
condition of the Company and its Subsidiaries taken as a whole or which does 
or could have a material adverse effect on the legality, validity or 
enforceability of any Loan Document, and either (i) such judgment or order 
shall have remained unsatisfied or uninsured for a period of 21 days and such 
Borrower or such Subsidiary shall not have taken action necessary to stay 
enforcement thereof by reason of pending appeal or otherwise, prior to the 
expiration of the applicable period of limitations for taking such action or, 
if such action shall have been taken, a final order denying such stay shall 
have been rendered, or 

                                         -35-

<PAGE>

(ii) enforcement proceedings shall have been commenced by any creditor upon 
any such judgment or order; or 

          (h) ERISA.  The occurrence of a Reportable Event that results in or 
could result in material liability of any Borrower, any Subsidiary of any 
Borrower or their ERISA Affiliates to the PBGC or to any Plan and such 
Reportable Event is not corrected within thirty (30) days after the 
occurrence thereof; or the occurrence of any Reportable Event which could 
constitute grounds for termination of any Plan of any Borrower, their 
respective Subsidiaries or their ERISA Affiliates by the PBGC or for the 
appointment by the appropriate United States District Court of a trustee to 
administer any such Plan and such Reportable Event is not corrected within 
thirty (30) days after the occurrence thereof; or the filing by any Borrower, 
any Subsidiary of any Borrower or any of their ERISA Affiliates of a notice 
of intent to terminate a Plan or the institution of other proceedings to 
terminate a Plan; or any Borrower, any Subsidiary of any Borrower or any of 
their ERISA Affiliates shall fail to pay when due any material liability to 
the PBGC or to a Plan; or the PBGC shall have instituted proceedings to 
terminate, or to cause a trustee to be appointed to administer, any Plan of 
any Borrower, their respective Subsidiaries or their ERISA Affiliates; or any 
person engages in a Prohibited Transaction with respect to any Plan which 
results in or could result in material liability of the any Borrower, any 
Subsidiary of any Borrower, any of their ERISA Affiliates, any Plan of any 
Borrower, their respective Subsidiaries or their ERISA Affiliates or 
fiduciary of any such Plan; or failure by any Borrower, any Subsidiary of any 
Borrower or any of their ERISA Affiliates to make a required installment or 
other payment to any Plan within the meaning of Section 302(f) of ERISA or 
Section 412(n) of the Code that results in or could result in liability of 
any Borrower, any Subsidiary of any Borrower or any of their ERISA Affiliates 
to the PBGC or any Plan; or the withdrawal of any Borrower, any of their 
respective Subsidiaries or any of their ERISA Affiliates from a Plan during a 
plan year in which it was a "substantial employer" as defined in Section 
4001(9a)(2) of ERISA; or any Borrower, any of their respective Subsidiaries 
or any of their ERISA Affiliates becomes an employer with respect to any 
Multiemployer Plan without the prior written consent of the Required Banks; or

          (i) INSOLVENCY, ETC.  Any Borrower shall be dissolved or liquidated 
(or any judgment, order or decree therefor shall be entered), except as 
otherwise provided pursuant to Section 5.2(e), or any Borrower or any 
Guarantor shall generally not pay its debts as they become due, or shall 
admit in writing its inability to pay its debts generally, or shall make a 
general assignment for the benefit of creditors, or shall institute, or there 
shall be instituted against any Borrower or any Guarantor, any proceeding or 
case seeking to adjudicate it a bankrupt or insolvent or seeking liquidation, 
winding up, reorganization, arrangement, adjustment, protection, relief or 
composition of it or its debts under any law relating to bankruptcy, 
insolvency or reorganization or relief or protection of debtors or seeking 
the entry of an order for relief, or the appointment of a receiver, trustee, 
custodian or other similar official for it or for any substantial part of its 
assets, rights, revenues or property, and, if such proceeding is instituted 
against any Borrower or any Guarantor and is being contested by such Borrower 
or such Guarantor in good faith by appropriate proceedings, such proceeding 
shall remain undismissed or unstayed for a period of 60 days; or any Borrower 
or any Guarantor shall take any action (corporate or other) to authorize or 
further any of the actions described above in this 

                                         -36-

<PAGE>

subsection; PROVIDED, HOWEVER, that none of the foregoing acts or occurrences 
in this Section 6.1(i) with respect to any Borrowing Subsidiary shall 
constitute an Event of Default so long as there are no Loans outstanding to 
such Borrowing Subsidiary at the time of such act or occurrence, PROVIDED, 
THAT, the Commitment of the Banks to such Borrowing Subsidiary shall 
automatically terminate without notice; or

          (j) CHANGE OF CONTROL.  The Company shall experience a Change of 
Control.  For purposes of this Section 6.1(j), a "Change of Control" shall 
occur if during any twelve-month period (i) any person or group of persons 
(within the meaning of Section 13 or 14 of the Securities Exchange Act of 
1934, as amended) shall have acquired beneficial ownership (within the 
meaning of Rule 13D-3 promulgated by the Securities and Exchange Commission 
under said Act) of 50% or more in voting power of the voting shares of the 
Company that were outstanding as of the date of this Agreement and (ii) a 
majority of the board of directors of the Company shall cease for any reason 
to consist of individuals who as of a date twelve months prior to any date 
compliance herewith is determined were directors of the Company; or 

          (k) 1994 LOAN AGREEMENT.  The occurrence of any Event of Default 
(as defined in the 1994 Loan Agreement) under the 1994 Loan Agreement.

    6.2   REMEDIES.  

          (a) Upon the occurrence and during the continuance of  any Event of 
Default, the Agent may and, upon being directed to do so by the Required 
Banks, shall by notice to the Company (i) terminate the Commitments or (ii) 
declare the outstanding principal of, and accrued interest on, the Notes and 
all other amounts owing under this Agreement to be immediately due and 
payable, or any one or more of the foregoing, whereupon the Commitments shall 
terminate forthwith and all such amounts, including cash collateral, shall 
become immediately due and payable, PROVIDED that in the case of any event or 
condition described in Section 6.1(i) with respect to any Borrower, the 
Commitments shall automatically terminate forthwith and all such amounts 
shall automatically become immediately due and payable without notice; in all 
cases without demand, presentment, protest, diligence, notice of dishonor or 
other formality, all of which are hereby expressly waived.

          (b) The Agent may and, upon being directed to do so by the Required 
Banks, shall, in addition to the remedies provided in Section 6.2(a), 
exercise and enforce any and all other rights and remedies available to it or 
the Banks, whether arising under this Agreement, the Notes or under 
applicable law, in any manner deemed appropriate by the Agent, including suit 
in equity, action at law, or other appropriate proceedings, whether for the 
specific performance (to the extent permitted by law) of any covenant or 
agreement contained in this Agreement or in the Notes or in aid of the 
exercise of any power granted in this Agreement or the Notes. 

          (c) Upon the occurrence and during the continuance of any Event of 
Default, each Bank may at any time and from time to time exercise any of its 
rights of set off or bankers lien that it may possess by common law or 
statute without prior notice to the Borrowers, 

                                         -37-

<PAGE>

provided that each Bank may also set off against any deposit whether or not 
it is then matured.  Each Bank agrees to promptly notify the Company after 
any such setoff and application, provided that the failure to give such 
notice shall not effect the validity of such setoff and application.  The 
rights of such Bank under this Section 6.2(c) are in addition to other rights 
and remedies which such Bank may have.  

                                      ARTICLE 7.
                               THE AGENT AND THE BANKS

    7.1   APPOINTMENT AND AUTHORIZATION.  Each Bank hereby irrevocably 
appoints and authorizes the Agent to take such action as agent on its behalf 
and to exercise such powers under this Agreement and the Notes as are 
delegated to the Agent by the terms hereof or thereof, together with all such 
powers as are reasonably incidental thereto.  The provisions of this Article 
7 are solely for the benefit of the Agent and the Banks, and the Borrowers 
shall not have any rights as a third party beneficiary of any of the 
provisions hereof.  In performing its functions and duties under this 
Agreement, the Agent shall act solely as agent of the Banks and does not 
assume and shall not be deemed to have assumed any obligation towards or 
relationship of agency or trust with or for the Borrowers.

    7.2   AGENT AND AFFILIATES.  FNBC, an Affiliate of NBD Bank, in its 
capacity as a Bank hereunder shall have the same rights and powers hereunder 
as any other Bank and  may exercise or refrain from exercising the same as 
though its' Affiliate were not the Agent.  FNBC and its affiliates, including 
NBD Bank, may (without having to account therefor to any Bank) accept 
deposits from, lend money to, and generally engage in any kind of banking, 
trust, financial advisory or other business with any Borrower or any 
Subsidiary of any Borrower as if its Affiliate were not acting as Agent 
hereunder, and may accept fees and other consideration therefor without 
having to account for the same to the Banks.

    7.3   SCOPE OF AGENT'S DUTIES.  The Agent shall have no duties or 
responsibilities except those expressly set forth herein, and shall not, by 
reason of this Agreement, have a fiduciary relationship with any Bank, and no 
implied covenants, responsibilities, duties, obligations or liabilities shall 
be read into this Agreement or shall otherwise exist against the Agent.  As 
to any matters not expressly provided for by this Agreement (including, 
without limitation, collection and enforcement actions under the Notes), the 
Agent shall not be required to exercise any discretion or take any action, 
but the Agent shall take such action or omit to take any action pursuant to 
the written instructions of the Required Banks and may request instructions 
from the Required Banks.  The Agent shall in all cases be fully protected in 
acting, or in refraining from acting, pursuant to the written instructions of 
the Required Banks, which instructions and any action or omission pursuant 
thereto shall be binding upon all of the Banks; PROVIDED, HOWEVER, that the 
Agent shall not be required to act or omit to act if, in the judgment of the 
Agent, such action or omission  may expose the Agent to personal liability or 
is contrary to this Agreement, the Notes or applicable law.  

                                         -38-

<PAGE>

    7.4   RELIANCE BY AGENT.  The Agent shall be entitled to rely upon any 
certificate, notice, document or other communication (including any cable, 
telegram, telex, facsimile transmission or oral communication) believed by it 
to be genuine and correct and to have been sent or given by or on behalf of a 
proper person.  The Agent may treat the payee of any Note as the holder 
thereof unless and until the Agent receives written notice of the assignment 
thereof pursuant to the terms of this Agreement signed by such payee and the 
Agent receives the written agreement of the assignee that such assignee is 
bound hereby to the same extent as if it had been an original party hereto.  
The Agent may employ agents (including without limitation collateral agents)  
and may consult with legal counsel (who may be counsel for the Borrowers), 
independent public accountants and other experts selected by it and shall not 
be liable to the Banks, except as to money or property received by it or its 
authorized agents, for the negligence or misconduct of any such agent 
selected by it with reasonable care or for any action taken or omitted to be 
taken by it in good faith in accordance with the advice of such counsel, 
accountants or experts.

    7.5   DEFAULT.  The Agent shall not be deemed to have knowledge of the 
occurrence of any Default or Event of Default, unless the Agent has received 
written notice from a Bank or a Borrower specifying such Default or Event of 
Default and stating that such notice is a "Notice of Default".  In the event 
that the Agent receives such a notice, the Agent shall give written notice 
thereof to the Banks.  

    7.6   LIABILITY OF AGENT.  Neither the Agent nor any of its directors, 
officers, agents, or employees shall be liable to the Banks for any action 
taken or not taken by it or them in connection herewith with the consent or 
at the request of the Required Banks or in the absence of its or their own 
gross negligence or willful misconduct.  Except for duties expressly accepted 
by the Agent hereunder, neither the Agent nor any of its directors, officers, 
agents or employees shall be responsible for or have any duty to ascertain, 
inquire into or verify (i) any recital, statement, warranty or representation 
contained in this Agreement or any Note or any Guaranty, or in any 
certificate, report, financial statement or other document furnished in 
connection with this Agreement, (ii) the performance or observance of any of 
the covenants or agreements of any Borrower or any Guarantor, (iii) the 
satisfaction of any condition specified in Article 2 hereof, or (iv) the 
validity, effectiveness, legal enforceability, value or genuineness of this 
Agreement or the Notes or any collateral subject thereto or any other 
instrument or document furnished in connection herewith.  

    7.7   NONRELIANCE ON AGENT AND OTHER BANKS.  Each Bank acknowledges and 
agrees that it has, independently and without reliance on the Agent or any 
other Bank, and based on such documents and information as it has deemed 
appropriate, made its own credit analysis of the Borrowers and decision to 
enter into this Agreement and that it will, independently and without 
reliance upon the Agent or any other Bank, and based on such documents and 
information as it shall deem appropriate at the time, continue to make its 
own analysis and decision in taking or not taking action under this 
Agreement.  The Agent shall not be required to keep itself informed as to the 
performance or observance by any Borrower or any Guarantor of this Agreement, 
the Notes or any other documents referred to or provided for herein or to 
inspect the properties or books of any Borrower or any Guarantor and, except 
for notices, reports and 

                                         -39-

<PAGE>

other documents and information expressly required to be furnished to the 
Banks by the Agent hereunder, the Agent shall not have any duty or 
responsibility to provide any Bank with any information concerning the 
affairs, financial condition or business of the Borrowers or any of their 
respective Subsidiaries which may come into the possession of the Agent or 
any of its affiliates. 

    7.8   INDEMNIFICATION.  The Banks agree to indemnify the Agent (to the 
extent not reimbursed by the Borrowers, but without limiting any obligation 
of the Borrowers to make such reimbursement), ratably according to the 
respective principal amounts of the Loans then outstanding made by each of 
them (or if no Loans are at the time outstanding, ratably according to the 
respective amounts of their Commitments), from and against any and all 
claims, damages, losses, liabilities, costs or expenses of any kind or nature 
whatsoever (including, without limitation, fees and disbursements of counsel) 
which may be imposed on, incurred by, or asserted against the Agent in any 
way relating to or arising out of this Agreement or the transactions 
contemplated hereby or any action taken or omitted by the Agent under this 
Agreement, PROVIDED, HOWEVER,  that no Bank shall be liable for any portion 
of such claims, damages, losses, liabilities, costs or expenses resulting 
from the Agent's gross negligence or willful misconduct.  Without limitation 
of the foregoing, each Bank agrees to reimburse the Agent promptly upon 
demand for its ratable share of any out-of-pocket expenses (including without 
limitation fees and expenses of counsel) incurred by the Agent in connection 
with the preparation, execution, delivery, administration, modification, 
amendment or enforcement (whether through negotiations, legal proceedings or 
otherwise) of, or legal advice in respect of rights or responsibilities 
under, this Agreement, to the extent that the Agent is not reimbursed for 
such expenses by the Borrowers, but without limiting the obligation of the 
Borrowers to make such reimbursement.  Each Bank agrees to reimburse the 
Agent promptly upon demand for its ratable share of any amounts owing to the 
Agent by the Banks pursuant to this Section.  If the indemnity furnished to 
the Agent under this Section shall, in the judgment of the Agent, be 
insufficient or become impaired, the Agent may call for additional indemnity 
from the Banks and cease, or not commence, to take any action until such 
additional indemnity is furnished.  

    7.9   RESIGNATION OF AGENT.  The Agent may resign as such at any time 
upon thirty days' prior written notice to the Borrowers and the Banks.  In 
the event of any such resignation, the Company shall, by an instrument in 
writing delivered to the Banks and the Agent, appoint a successor, which 
shall be a Bank or any other commercial bank organized under the laws of the 
United States or any State thereof and having a combined capital and surplus 
of at least $500,000,000.  If a successor is not so appointed or does not 
accept such appointment before the Agent's resignation becomes effective, the 
resigning Agent may appoint a temporary successor to act until such 
appointment by the Company is made and accepted.  Any successor to the Agent 
shall execute and deliver to the Borrowers and the Banks an instrument 
accepting such appointment and thereupon such successor Agent, without 
further act, deed, conveyance or transfer shall become vested with all of the 
properties, rights, interests, powers, authorities and obligations of its 
predecessor hereunder with like effect as if originally named as Agent 
hereunder.  Upon request of such successor Agent, the Borrowers and the 
resigning Agent shall execute and deliver such instruments of conveyance, 
assignment and further assurance and do such other things as may reasonably 
be required for more fully and certainly vesting and 

                                         -40-

<PAGE>

confirming in such successor Agent all such properties, rights, interests, 
powers, authorities and obligations.  The provisions of this Article 7 shall 
thereafter remain effective for such resigning Agent with respect to any 
actions taken or omitted to be taken by such Agent while acting as the Agent 
hereunder.

    7.10  SHARING OF PAYMENTS.  The Banks agree among themselves that, in the 
event that any Bank shall obtain payment in respect of any Loan or any other 
obligation owing to the Banks under this Agreement through the exercise of a 
right of set-off, banker's lien, counterclaim or otherwise in excess of its 
ratable share of payments received by all of the Banks on account of the 
Loans and other obligations (or if no Loans are outstanding, ratably 
according to the respective amounts of the Commitments), such Bank shall 
promptly purchase from the other Banks participations in such Loans and other 
obligations in such amounts, and make such other adjustments from time to 
time, as shall be equitable to the end that all of the Banks share such 
payment in accordance with such  ratable shares.  The Banks further agree 
among themselves that if payment to a Bank obtained by such Bank through the 
exercise of a right of set-off, banker's lien, counterclaim or otherwise as 
aforesaid shall be rescinded or must otherwise be restored, each Bank which 
shall have shared the benefit of such payment shall, by repurchase of 
participations theretofore sold, return its share of that benefit to each 
Bank whose payment shall have been rescinded or otherwise restored.  The 
Borrowers agree that any Bank so purchasing such a participation may, to the 
fullest extent permitted by law, exercise all rights of payment, including 
set-off, banker's lien or counterclaim, with respect to such participation as 
fully as if such Bank were a holder of such Loan or other obligation in the 
amount of such participation. The Banks further agree among themselves that, 
in the event that amounts received by the Banks and the Agent hereunder are 
insufficient to pay all such obligations or insufficient to pay all such 
obligations when due, the fees and other amounts owing to the Agent in such 
capacity shall be paid therefrom before payment of obligations owing to the 
Banks under this Agreement, other than agency fees payable pursuant to 
Section 2.4(b) of this Agreement which shall be paid on a pro rata basis with 
amounts owing to the Banks.  Except as otherwise expressly provided in this 
Agreement, if any Bank or the Agent shall fail to remit to the Agent or any 
other Bank an amount payable by such Bank or the Agent to the Agent or such 
other Bank pursuant to this Agreement on the date when such amount is due, 
such payments shall be made together with interest thereon for each date from 
the date such amount is due until the date such amount is paid to the Agent 
or such other Bank at a rate per annum equal to the rate at which borrowings 
are available to the payee in its overnight federal funds market.  It is 
further understood and agreed among the Banks and the Agent that if the Agent 
or any Bank shall engage in any other transactions with any Borrower and 
shall have the benefit of any collateral or security therefor which does not 
expressly secure the obligations arising under this Agreement except by 
virtue of a so-called dragnet clause or comparable provision, the Agent or 
such Bank shall be entitled to apply any proceeds of such collateral or 
security first in respect of the obligations arising in connection with such 
other transaction before application to the obligations arising under this 
Agreement.

    7.11  CO-AGENT. The Co-Agent shall have all of the duties which may be 
agreed upon or assigned to it from time to time by the Agent.  In the event 
any such duties are 

                                         -41-

<PAGE>

assigned to the Co-Agent, the Co-Agent shall be entitled to the same 
indemnifications and other protections and held to the same standard of care 
as provided in this Article 7 for the Agent.

                                      ARTICLE 8.
                                    MISCELLANEOUS

    8.1   AMENDMENTS, ETC.

          (a) No amendment, modification, termination or waiver of any 
provision of this Agreement nor any consent to any departure therefrom shall 
be effective unless the same shall be in writing and signed by the Borrowers 
and the Required Banks and, to the extent any rights or duties of the Agent 
may be affected thereby, the Agent, PROVIDED, HOWEVER, that no such 
amendment, modification, termination, waiver or consent shall, without the 
consent of the Agent and all of the Banks, (i) authorize or permit the 
extension of time for, or any reduction of the amount of, any payment of the 
principal of, or interest on, the Notes, or any fees or other amount payable 
hereunder, (ii) amend or terminate the respective Commitment of any Bank set 
forth on the signature pages hereof or modify the provisions of this Section 
regarding the taking of any action under this Section or the provisions of 
Section 7.10 or the definition of Required Banks or (iii) amend or modify the 
Guaranty (other than any amendment solely for the purpose of adding or 
deleting a Borrowing Subsidiary) or provide for the release or discharge of 
the Company's obligations under the Guaranty.

          (b) Any such amendment, waiver or consent shall be effective only 
in the specific instance and for the specific purpose for which given.
  
          (c) Notwithstanding anything herein to the contrary, no Bank that 
is in default of any of its obligations, covenants or agreements under this 
Agreement shall be entitled to vote (whether to consent or to withhold its 
consent) with respect to any amendment, modification, termination or waiver 
of any provision of this Agreement or any departure therefrom or any 
direction from the Banks to the Agent, and, for purposes of determining the 
Required Banks at any time when any Bank is in default under this Agreement, 
the Commitments and Loans of such defaulting Banks shall be disregarded.

    8.2   NOTICES.

          (a) Except as otherwise provided in Section 8.2(c) hereof, all 
notices and other communications hereunder shall be in writing and shall be 
delivered or sent to the Borrowers in care of the Treasury Manager at 899 
Cleveland Street, P.O. Box 4028, Elyria, Ohio 44036, Attention: Chief 
Financial Officer, Facsimile No. (216) 366-9672, and to the Agent and the 
Banks at the respective addresses and numbers for notices set forth on the 
signatures pages hereof, or to such other address as may be designated by any 
Borrower, the Agent or any Bank by notice to the other parties hereto.  All 
notices and other communications shall be deemed to have been given at the 
time of actual delivery thereof to such address, or if sent by certified or 
registered mail, postage prepaid, to such address, on the third day after the 
date of mailing, or if deposited prepaid with Federal Express or other 
nationally recognized overnight delivery service 

                                         -42-

<PAGE>

prior to the deadline for next day delivery, on the Business Day next 
following such deposit, PROVIDED, HOWEVER, that notices to the Agent shall 
not be effective until received.

          (b) Notices by the Treasury Manager or a Borrower to the Agent with 
respect to terminations or reductions of the Commitments pursuant to Section 
2.3, requests for Loans pursuant to Section 2.5, requests for continuations 
or conversions of Loans pursuant to Section 2.8 and notices of prepayment 
pursuant to Section 3.1 shall be irrevocable and binding on the Borrowers. 

          (c) Any notice to be given by the Treasury Manager or a Borrower to 
the Agent pursuant to Sections 2.5 or 2.8 and any notice to be given by the 
Agent or any Bank hereunder, may be given by telephone, and all such notices 
given by the Treasury Manager or a Borrower must be immediately confirmed in 
writing in the manner provided in Section 8.2(a).  Any such notice given by 
telephone shall be deemed effective upon receipt thereof by the party to whom 
such notice is to be given.

    8.3   NO WAIVER BY CONDUCT; REMEDIES CUMULATIVE.  No course of dealing on 
the part of the Agent or any Bank, nor any delay or failure on the part of 
the Agent or any Bank in exercising any right, power or privilege hereunder 
shall operate as a waiver of such right, power or privilege or otherwise 
prejudice the Agent's or such Bank's rights and remedies hereunder; nor shall 
any single or partial exercise thereof preclude any further exercise thereof 
or the exercise of any other right, power or privilege.  No right or remedy 
conferred upon or reserved to the Agent or any Bank under this Agreement or 
the Notes or any Guaranty is intended to be exclusive of any other right or 
remedy, and every right and remedy shall be cumulative, except as limited by 
this Agreement, and in addition to every other right or remedy granted 
thereunder or now or hereafter existing under any applicable law.  Every 
right and remedy granted by this Agreement or the Notes or any Guaranty or by 
applicable law to the Agent or any Bank may be exercised from time to time 
and as often as may be deemed expedient by the Agent or any Bank and, unless 
contrary to the express provisions of this Agreement or the Notes or such 
Guaranty, irrespective of the occurrence or continuance of any Default or 
Event of Default.  

    8.4   RELIANCE ON AND SURVIVAL OF VARIOUS PROVISIONS.  All terms, 
covenants, agreements, representations and warranties of any Borrower or any 
Guarantor made herein, in any Guaranty or in any certificate, report, 
financial statement or other document furnished by or on behalf of any 
Borrower or any Guarantor in connection with this Agreement shall be deemed 
to be material and to have been relied upon by the Banks, notwithstanding any 
investigation heretofore or hereafter made by any Bank or on such Bank's 
behalf, and those covenants and agreements of the Borrowers set forth in 
Sections 3.6, 3.8 and 8.5 hereof shall survive the repayment in full of the 
Loans and the termination of the Commitments for a period of one year from 
such repayment or termination.  

                                         -43-

<PAGE>

    8.5   EXPENSES; INDEMNIFICATION. 

          (a) The Company agrees to pay, or reimburse the Agent for the 
payment of, on demand, (i) the reasonable fees, without premium, and expenses 
of counsel to the Agent, including without limitation the reasonable fees and 
expenses of Dickinson, Wright, Moon, Van Dusen & Freeman as agreed upon with 
the Company in connection with the preparation, execution, delivery and 
administration of the Loan Documents and the consummation of the transactions 
contemplated hereby, and in connection with advising the Agent as to its 
rights and responsibilities with respect thereto, and in connection with any 
amendments, waivers or consents in connection therewith, and (ii) all stamp 
and other taxes and fees payable or determined to be payable in connection 
with the execution, delivery, filing or recording of this Agreement, the 
Notes and the consummation of the transactions contemplated hereby, and any 
and all liabilities with respect to or resulting from any delay in paying or 
omitting to pay such taxes or fees, and (iii) all reasonable costs and 
expenses of the Agent (including without limitation reasonable fees and 
expenses of counsel, which counsel shall be acceptable to the Required Banks, 
including without limitation counsel who are employees of the Agent, and 
whether incurred through negotiations, legal proceedings or otherwise) in 
connection with any Default or Event of Default or the enforcement of, or the 
exercise or preservation of any rights under the Loan Documents or in 
connection with any refinancing or restructuring of the credit arrangements 
provided under this Agreement.

          (b) Each Borrower hereby indemnifies and agrees to hold harmless 
the Banks and the Agent, and their respective officers, directors, employees 
and agents, from and against any and all claims, damages, losses, 
liabilities, costs or expenses of any kind or nature whatsoever which the 
Banks or the Agent or any such person may incur or which may be claimed 
against any of them by reason of or in connection with entering into this 
Agreement or the transactions contemplated hereby; PROVIDED, HOWEVER, that no 
Borrower shall be required to indemnify any such Bank and the Agent or such 
other person, to the extent, but only to the extent, that such claim, damage, 
loss, liability, cost or expense is attributable to the gross negligence or 
willful misconduct of such Bank or the Agent, as the case may be.

    8.6   SUCCESSORS AND ASSIGNS.  

          (a) This Agreement shall be binding upon and inure to the benefit 
of the parties hereto and their respective successors and assigns, PROVIDED 
that no Borrower may, without the prior consent of the Banks, assign its 
rights or obligations hereunder or under the Notes and the Banks shall not be 
obligated to make any Loan hereunder to any entity other than the Borrowers.

          (b) Any Bank may, without the prior consent of the Company sell to 
any financial institution or institutions, and such financial institution or 
institutions may further sell, a participation interest (undivided or 
divided) in, the Loans and such Bank's rights and benefits under this 
Agreement and the Notes, and to the extent of that participation interest 
such participant or participants shall have the same rights and benefits 
against the Borrowers under

                                         -44-

<PAGE>

Section 3.6, 3.8 and 6.2(c) as it or they would have had if such participant 
or participants were the Bank making the Loans to the Borrowers hereunder, 
PROVIDED, HOWEVER, that (i) such Bank's obligations under this Agreement 
shall remain unmodified and fully effective and enforceable against such 
Bank, (ii) such Bank shall remain solely responsible to the other parties 
hereto for the performance of such obligations, (iii) such Bank shall remain 
the holder of its Notes for all purposes of this Agreement, (iv) the 
Borrowers, the Agent and the other Banks shall continue to deal solely and 
directly with such Bank in connection with such Bank's rights and obligations 
under this Agreement, and (v) such Bank shall not grant to its participant 
any rights to consent or withhold consent to any action taken by such Bank or 
the Agent under this Agreement other than action requiring the consent of all 
of the Banks hereunder.

          (c) The Agent from time to time in its sole discretion may appoint 
agents for the purpose of servicing and administering this Agreement and the 
transactions  contemplated hereby and enforcing or exercising any rights or 
remedies of the Agent provided under this Agreement, the Notes or otherwise.  
In furtherance of such agency, the Agent may from time to time direct that 
the Borrowers provide notices, reports and other documents contemplated by 
this Agreement (or duplicates thereof) to such agent.  Each Borrower hereby 
consents to the appointment of such agent and agrees to provide all such 
notices, reports and other documents and to otherwise deal with such agent 
acting on behalf of the Agent in the same manner as would be required if 
dealing with the Agent itself.  

          (d) Each Bank may, with the prior consent of the Company and the 
Agent (which consent, in each case, will not be unreasonably withheld), 
assign to one or more banks or other entities all or a portion of its rights 
and obligations under this Agreement (including, without limitation, all or a 
portion of its Commitment, the Loans owing to it and the Note or Notes held 
by it); PROVIDED, HOWEVER, that (i) each such assignment shall be of a 
uniform, and not a varying, percentage of all rights and obligations, (ii) 
except in the case of an assignment of all of a Bank's rights and obligations 
under this Agreement, (A) the amount of the Commitment of the assigning Bank 
being assigned pursuant to each such assignment (determined as of the date of 
the Assignment and Acceptance with respect to such assignment) shall in no 
event be less than $5,000,000, and in integral multiples of $1,000,000 
thereafter, or such lesser amount as the Company and the Agent may consent to 
and (B) after giving effect to each such assignment, the amount of the 
Commitment of the assigning Bank shall in no event be less than $3,000,000, 
(iii) the parties to each such assignment shall execute and deliver to the 
Agent, for its acceptance and recording in the Register, an Assignment and 
Acceptance in the form of Exhibit G hereto (an "ASSIGNMENT AND ACCEPTANCE"), 
together with any Note or Notes subject to such assignment and a processing 
and recordation fee of $4,000, and (iv) any Bank may without the consent of 
the Company or the Agent, and without paying any fee, assign or sell a 
participation interest to any Affiliate of such Bank that is a bank or 
financial institution all or a portion of its rights and obligations under 
this Agreement.  Upon such execution, delivery, acceptance and recording, 
from and after the effective date specified in such Assignment and 
Acceptance, (x) the assignee thereunder shall be a party hereto and, to the 
extent that rights and obligations hereunder have been assigned to it 
pursuant to such Assignment and Acceptance, have the rights and obligations 
of a Bank hereunder and (y) the Bank assignor thereunder shall, to the extent 
that rights and obligations hereunder have been assigned by it pursuant to 
such 

                                         -45-

<PAGE>

Assignment and Acceptance, relinquish its rights and be released from its 
obligations under this Agreement (and, in the case of an Assignment and 
Acceptance covering all of the remaining portion of an assigning Bank's 
rights and obligations under this Agreement, such Bank shall cease to be a 
party hereto).

          (e) By executing and delivering an Assignment and Acceptance, the 
Bank assignor thereunder and the assignee thereunder confirm to and agree 
with each other and the other parties hereto as follows:  (i) other than as 
provided in such Assignment and Acceptance, such assigning Bank makes no 
representation or warranty and assumes no responsibility with respect to any 
statements, warranties or representations made in or in connection with this 
Agreement or the execution, legality, validity, enforceability, genuineness, 
sufficiency or value of this Agreement or any other instrument or document 
furnished pursuant hereto; (ii) such assigning Bank makes no representation 
or warranty and assumes no responsibility with respect to the financial 
condition of any Borrower or the performance or observance by any Borrower of 
any of its obligations under this Agreement or any other instrument or 
document furnished pursuant hereto; (iii) such assignee confirms that it has 
received a copy of this Agreement, together with copies of the financial 
statements referred to in Section 4.6 and such other documents and 
information as it has deemed appropriate to make its own credit analysis and 
decision to enter into such Assignment and Acceptance; (iv) such assignee 
will, independently and without reliance upon the Agent, such assigning Bank 
or any other Bank and based on such documents and information as it shall 
deem appropriate at the time, continue to make its own credit decisions in 
taking or not taking action under this Agreement; (v) such assignee appoints 
and authorizes the Agent to take such action as agent on its behalf and to 
exercise such powers and discretion under this Agreement as are delegated to 
the Agent by the terms hereof, together with such powers and discretion as 
are reasonably incidental thereto; and (vi) such assignee agrees that it will 
perform in accordance with their terms all of the obligations that by the 
terms of this Agreement are required to be performed by it as a Bank.

          (f) The Agent shall maintain at its address designated on the 
signature pages hereof a copy of each Assignment and Acceptance delivered to 
and accepted by it and a register for the recordation of the names and 
addresses of the Banks and the Commitment of, and principal amount of the 
Loans owing to, each Bank from time to time (the "REGISTER").  The entries in 
the Register shall be conclusive and binding for all purposes, absent 
manifest error, and the Company, the Borrowing Subsidiaries, the Agent and 
the Banks may treat each person whose name is recorded in the Register as a 
Bank hereunder for all purposes of this Agreement.  The Register shall be 
available for inspection by the Company or any Bank at any reasonable time 
and from time to time upon reasonable prior notice.

          (g) Upon its receipt of an Assignment and Acceptance executed by an 
assigning Bank and an assignee, together with any Note or Notes subject to 
such assignment, the Agent shall, if such Assignment and Acceptance has been 
completed, (i) accept such Assignment and Acceptance, (ii) record the 
information contained therein in the Register and (iii) give prompt notice 
thereof to the Company.  Within five Business Days after its receipt of such 
notice, the Borrowers, at their own expense, shall execute and deliver to the 
Agent in exchange 

                                         -46-

<PAGE>

for the surrendered Note or Notes a new Note to the order of such assignee in 
an amount equal to the Commitment assumed by it pursuant to such Assignment 
and Acceptance and, if the assigning Bank has retained a Commitment 
hereunder, a new Note to the order of the assigning Bank in an amount equal 
to the Commitment retained by it hereunder.  Such new Note or Notes shall be 
in an aggregate principal amount equal to the aggregate principal amount of 
such surrendered Note or Notes, shall be dated the effective date of such 
Assignment and Acceptance and shall otherwise be in substantially the form of 
Exhibit G hereto.

          (h) No Borrower shall be liable for any costs or expenses of any 
Bank in effectuating any participation or assignment under this Section 8.6.

          (i) The Banks may, in connection with any assignment or 
participation or proposed assignment or participation pursuant to this 
Section 8.6, disclose to the assignee or participant or proposed assignee or 
participant any information relating to the Borrowers.

          (j) Notwithstanding any other provision set forth in this 
Agreement, any Bank may at any time create a security interest in, or assign, 
all or any portion of its rights under this Agreement (including, without 
limitation, the Loans owing to it and the Note or Notes held by it) in favor 
of any Federal Reserve Bank in accordance with Regulation A of the Board of 
Governors of the Federal Reserve System; PROVIDED that such creation of a 
security interest or assignment shall not release such Bank from its 
obligations under this Agreement.

    8.7   COUNTERPARTS.  This Agreement may be executed in any number of 
counterparts, all of which taken together shall constitute one and the same 
instrument and any of the parties hereto may execute this Agreement by 
signing any such counterpart.  

    8.8   GOVERNING LAW; CONSENT TO JURISDICTION.  This Agreement is a 
contract made under, and shall be governed by and construed in accordance 
with, the law of the State of Michigan applicable to contracts made and to be 
performed entirely within such State and without giving effect to choice of 
law principles of such State.  Each Borrower further agrees that any legal 
action or proceeding with respect to this Agreement or the Notes or the 
transactions contemplated hereby shall be brought in any court of the State 
of Michigan, or in any court of the United States of America sitting in 
Michigan, and each Borrower hereby irrevocably submits to and accepts 
generally and unconditionally the jurisdiction of those courts with respect 
to its person and property, and irrevocably appoints Thomas R. Miklich, whose 
address is set forth in Section 8.2, as its agent for service of process and 
irrevocably consents to the service of process in connection with any such 
action or proceeding by personal delivery to such agent or to the Borrowers 
or by the mailing thereof by registered or certified mail, postage prepaid to 
the Borrowers at the address set forth in Section 8.2. Nothing in this 
paragraph shall affect the right of the Banks and the Agent to serve process 
in any other manner permitted by law or limit the right of the Banks or the 
Agent to bring any such action or proceeding against the Borrowers or 
property in the courts of any other jurisdiction.  Each Borrower hereby 
irrevocably waives any objection to the laying of venue of any such suit or 
proceeding in the above described courts.

                                         -47-

<PAGE>

    8.9   TABLE OF CONTENTS AND HEADINGS.  The table of contents and the 
headings of the various subdivisions hereof are for the convenience of 
reference only and shall in no way modify any of the terms or provisions 
hereof.  

    8.10  CONSTRUCTION OF CERTAIN PROVISIONS.  If any provision of this 
Agreement refers to any action to be taken by any person, or which such 
person is prohibited from taking, such provision shall be applicable whether 
such action is taken directly or indirectly by such person, whether or not 
expressly specified in such provision.  

    8.11  INTEGRATION AND SEVERABILITY.  This Agreement and the Notes embody 
the entire agreement and understanding between the Borrowers and the Agent 
and the Banks, and supersede all prior agreements and understandings, 
relating to the subject matter hereof.  In case any one or more of the 
obligations of any Borrower under this Agreement or the Notes shall be 
invalid, illegal or unenforceable in any jurisdiction, the validity, legality 
and enforceability of the remaining obligations of such Borrower and the 
other Borrowers shall not in any way be affected or impaired thereby, and 
such invalidity, illegality or unenforceability in one jurisdiction shall not 
affect the validity, legality or enforceability of the obligations of the 
Borrowers under this Agreement or the Notes in any other jurisdiction.  

    8.12  INDEPENDENCE OF COVENANTS.  All covenants hereunder shall be given 
independent effect so that if a particular action or condition is not 
permitted by any such covenant, the fact that it would be permitted by an 
exception to, or would be otherwise within the limitations of, another 
covenant shall not avoid the occurrence of a Default or an Event of Default 
if such action is taken or such condition exists.

    8.13  INTEREST RATE LIMITATION.  Notwithstanding any provisions of this 
Agreement or the Notes, in no event shall the amount of interest paid or 
agreed to be paid by any Borrower exceed an amount computed at the highest 
rate of interest permissible under applicable law.  If, from any 
circumstances whatsoever, fulfillment of any provision of this Agreement or 
the Notes at the time performance of such provision shall be due, shall 
involve exceeding the interest rate limitation validly prescribed by law 
which a court of competent jurisdiction may deem applicable hereto, then, 
IPSO FACTO, the obligations to be fulfilled shall be reduced to an amount 
computed at the highest rate of interest permissible under applicable law, 
and if for any reason whatsoever any Bank shall ever receive as interest an 
amount which would be deemed unlawful under such applicable law such interest 
shall be automatically applied to the payment of principal of such Bank's 
Loans outstanding hereunder (whether or not then due and payable) and not to 
the payment of interest, or shall be refunded to the Borrowers if such 
principal and all other obligations of the Borrowers to such Bank have been 
paid in full.

    8.14  CONFIDENTIALITY.  The Banks and the Agent shall hold all 
confidential information obtained pursuant to the requirements of this 
Agreement which has been identified as such by the Company in accordance with 
their customary procedures for handling confidential information of this 
nature and in accordance with safe and sound banking practices and in any 
event may make disclosure to its examiners, affiliates, outside auditors, 
counsel and other professional advisors in connection with this Agreement or 
as reasonably required by any bona 

                                         -48-

<PAGE>

fide transferee or participant in connection with the contemplated transfer 
of any Note or participation therein or as required or requested by any 
governmental agency or representative thereof or pursuant to legal process. 
Without limiting the foregoing, it is expressly understood that such 
confidential information shall not include information which, at the time of 
disclosure is in the public domain or, which after disclosure, becomes part 
of the public domain or information which is obtained by any Bank or the 
Agent prior to the time of disclosure and identification by the Company under 
this Section, or information received by any Bank or the Agent from a third 
party. Nothing in this Section or otherwise shall prohibit any Bank or the 
Agent from disclosing any confidential information to the other Banks or the 
Agent or render any of them liable in connection with any such disclosure.

    8.15  WAIVER OF JURY TRIAL.  The Borrowers, the Banks and the Agent, 
after consulting or having had the opportunity to consult with counsel, 
knowingly, voluntarily and intentionally waive any right either of them may 
have to a trial by jury in any litigation based upon or arising out of this 
Agreement or any other Loan Document or any of the transactions contemplated 
by this Agreement or any course of conduct, dealing, statements (whether oral 
or written) or actions of any of them.  Neither any Borrower, any Bank nor 
the Agent shall seek to consolidate, by counterclaim or otherwise, any such 
action in which a jury trial has been waived with any other action in which a 
jury trial cannot be or has not been waived.  These provisions shall not be 
deemed to have been modified in any respect or relinquished by any party 
hereto except by a written instrument executed by such party.

    IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
duly executed and delivered on the 27th day of February, 1997, which shall be 
the Effective Date of this Agreement, notwithstanding the day and year first 
above written.

                                       INVACARE CORPORATION


                                       By: /s/ Thomas R. Miklich
                                          -------------------------------------
                                          Its  Chief Financial Officer
                                               --------------------------------


                                         -49-

<PAGE>

Address for Notices:                   NBD BANK, as Agent


                                       By: /s/ Winifred S. Pinet
611 Woodward Avenue                        ------------------------------------
Detroit, Michigan 48226
Attention: Midwest Banking Division       Its: First Vice President
                                              ---------------------------------
Facsimile No.: (313) 225-1671
Telephone No.: (313) 225-2259


Address for Notices:                   THE FIRST NATIONAL BANK OF CHICAGO

                                       By: /s/ Winifred S. Pinet
One First National Plaza                  -------------------------------------
Chicago, Illinois 60670 
Attention: Ernie Misiora                  Its:  First Vice President
                                              ---------------------------------

Facsimile No.: (312) 732-1158
Telephone No.: (312) 732-7659

Commitment Amount: $30,000,000

Initial Percentage of
  Total Commitments: 15%


Address for Notices:                   KEYBANK NATIONAL ASSOCIATION, as 
                                        Co-Agent and as a Bank

                                       By: /s/ Thomas J. Purcell
127 Public Square, 6th Floor              -------------------------------------
Cleveland, Ohio 44114-1306   
Attention:  Thomas Purcell                Its: Vice President
                                              ---------------------------------

Facsimile No.: (216) 689-4981
Telephone No.: (216) 689-4439

Commitment Amount: $30,000,000

Initial Percentage of
  Total Commitments: 15%


                                         -50-

<PAGE>

Address for Notices:                   SUN TRUST BANK, CENTRAL FLORIDA, NA

                                       By: /s/ Janet P. Sammons
200 S. Orange Avenue                      -------------------------------------
Orlando, Florida 32801  
Attention: Steve Leister                  Its: Vice President
                                              ---------------------------------

Facsimile No.: (407) 237-6894
Telephone No.: (407) 237-4705

Commitment Amount: $20,000,000

Initial Percentage of
  Total Commitments: 10%



Address for Notices:                   NATIONAL CITY BANK

                                       By: /s/ Michael P. McCuen
1900 E. 9th, 10th Floor                   -------------------------------------
Cleveland, Ohio 44114   
Attention:  Michael McCuen                Its: Vice President
                                               --------------------------------
Facsimile No.: (216) 575-9396
Telephone No.: (216) 575-9401

Commitment Amount: $17,500,000

Initial Percentage of
  Total Commitments: 8.75%


                                         -51-



<PAGE>

Address for Notices:                   SOCIETE GENERALE, CHICAGO BRANCH

                                       By: /s/ Joseph Philbin
181 W. Madison, Suite 3400                -------------------------------------
Chicago, Illinois 60602 
Attention: Joseph Philbin                 Its: Vice President
                                              ---------------------------------

Facsimile No.: (312) 578-5099
Telephone No.: (312) 578-5005

Commitment Amount: $17,500,000

Initial Percentage of
  Total Commitments: 8.75%


Address for Notices:                   WACHOVIA BANK OF GEORGIA, NA

                                       By: /s/ James B. Gburek
191 Peachtree Street, NE                   ------------------------------------
Atlanta, GA 30303  
Attention:  Eero Maki                     Its: SVP/Group Executive
                                              ---------------------------------

Facsimile No.: (404) 332-6898
Telephone No.: (404) 332-5275

Commitment Amount: $17,000,000

Initial Percentage of
  Total Commitments: 8.5%


                                         -52-

<PAGE>

Address for Notices:                   PNC BANK, NA

                                       By: /s/ Bryan S. Pike
1375 E. Ninth Street, #1250               -------------------------------------
Cleveland, OH 44114     
Attention:  Bryon Pike                    Its: Vice President
                                              ---------------------------------

Facsimile No.: (216) 348-8594
Telephone No.: (216) 348-8560

Commitment Amount: $17,000,000

Initial Percentage of
  Total Commitments: 8.5%


Address for Notices:                   COMMERZBANK, AKTIENGESELLSCHAFT,
                                       CHICAGO BRANCH

                                       By: /s/ Dr. Helmut P. Tollner
311 S. Wacker Drive                       -------------------------------------
Chicago, IL 60606  
Attention:  William Binder                Its: Executive Vice President
                                              ---------------------------------

Facsimile No.: (312) 435-1486          By: /s/ William J. Binder
Telephone No.: (312) 408-6920              ------------------------------------

Commitment Amount: $17,000,000             Its:  Assistant Vice President
                                                -------------------------------
Initial Percentage of
  Total Commitments: 8.5%


                                         -53-

<PAGE>

Address for Notices:                   THE SANWA BANK, LIMITED, CHICAGO 
                                       BRANCH

                                       By: /s/ James P. Byrnes
10 S. Wacker Drive, 31st Floor            -------------------------------------
Chicago, IL  60606
Attention:  Lisa Dean Jeszke              Its: First Vice President
                                              ---------------------------------

Facsimile No.: (312) 346-6677
Telephone No.: (312) 368-3016

Commitment Amount: $17,000,000

Initial Percentage of
  Total Commitments: 8.5%


Address for Notices:                   THE BANK OF NEW YORK

                                       By: /s/ Edward J. Dougherty
One Wall Street, 22ND Floor               -------------------------------------
New York, New York 10286
Attention:   Ed Dougherty                 Its: Vice President
                                              ---------------------------------

Facsimile No.: (212) 635-6434
Telephone No.: (212) 635-1066

Commitment Amount: $17,000,000

Initial Percentage of
  Total Commitments: 8.5%


                                         -54-


<PAGE>

                                     EXHIBIT A
                                          
                                     AGREEMENT



    Reference is made to the Loan Agreement dated as of February 27, 1997 (as
now or hereafter amended or modified from time to time, the "Loan Agreement")
among INVACARE CORPORATION, an Ohio corporation (the "Company"), certain
borrowing subsidiaries designated therein from time to time (the "Borrowing
Subsidiaries, and collectively with the Company, the "Borrowing Subsidiaries"),
the Guarantors defined therein (the "Guarantors"), the banks named therein (the
"Banks") and NBD BANK, as agent for the Banks (the "Agent").  Terms defined in
the Loan Agreement are used herein with the same meaning.


    1.   __________________, a ___________ corporation (the "New Borrowing
Subsidiary") has decided to become a Borrowing Subsidiary under the Loan
Agreement, with its address for notice as described next to its signature
below.  The New Borrowing Subsidiary (i) confirms that it has received a copy
of the Loan Agreement, together with copies of documents and information as it
has deemed appropriate to make its own decision to enter into this Agreement;
(ii) agrees that it will perform in accordance with all of the obligations and
comply with all of the covenants that by the terms of the Loan Agreement and
the other Loan Documents are required to be performed by or complied with by it
as a Borrowing Subsidiary; (iii) confirms that the representations and
warranties contained in Article IV of the Loan Agreement and in any other Loan
Agreement applicable to a Borrowing Subsidiary are true and correct as of the
date hereof as to the New Borrowing Subsidiary and (iv) authorizes Invacare
Corporation, as Treasury Manager, to act as its manager under the Loan
Agreement pursuant to Section 2.11 of the Loan Agreement.
 
    2.   Upon execution and delivery of this Agreement to the Agent together
with all other items required pursuant to paragraph 3, the New Borrowing
Subsidiary shall be a party to the Loan Agreement and have the rights and
obligations of a Borrowing Subsidiary thereunder.

    3.   This Agreement shall not become effective and the New Borrowing
Subsidiary shall not become a Borrowing Subsidiary under the Loan Agreement
until receipt by the Agent of the following documents and completion of the
following matters, in form and substance reasonably satisfactory to the Agent:

         (a)  A certificate of incumbency of the Company, each Guarantor and
the New Borrowing Subsidiary containing, and attesting to the genuineness of,
the signatures of those officers authorized to act on behalf of the New
Borrowing Subsidiary in connection with this Agreement, the Loan Agreement and
the Notes and on behalf of the Company and each Guarantor in connection with
this Agreement and the consummation by the New Borrowing Subsidiary, the Company
and the Guarantors of the transactions contemplated herein, certified as true
and correct as of the effective date of this Agreement by a duly authorized
officer of the New Borrowing Subsidiary, the Company and each Guarantor,
respectively; and

<PAGE>

         (b)  The Notes, duly executed on behalf of the New Borrowing
Subsidiary, for each Bank;

    4.   Each of the Company and each other Guarantor (a) fully consents to the
New Borrowing Subsidiary becoming a Borrowing Subsidiary; (b) agrees that the
Guaranty executed by it with respect to the indebtedness, obligations and
liabilities of the Borrowing Subsidiaries dated as of February 27, 1997 in favor
of the Agent and the Banks is ratified and confirmed and shall remain in full
force and effect; and (c) confirms that all indebtedness, obligations and
liabilities of the Borrowing Subsidiaries, including the New Borrowing
Subsidiary, are guaranteed by the Guaranty.

    5.   This Agreement shall be governed by, and construed in accordance with,
the laws of the State of Michigan.

    6.   This Agreement may be executed in any number of counterparts and by
different parties hereto in separate counterparts, each of which when so
executed shall be deemed to be an original and all of which taken together shall
constitute one and the same agreement.  

    7.   Upon delivery of this executed Agreement to the Agent, the Agent shall
deliver a copy of this Agreement to each Bank, together with the original Notes
payable to each such Bank.

    IN WITNESS WHEREOF, the parties hereto have caused this Agreement  to be
executed by their duly authorized officer thereunto duly authorized as of the
day and year first above written.


- -----------------------------          [NEW BORROWING SUBSIDIARY]
- -----------------------------          
- -----------------------------          
Attention:                        By:
         --------------------         ------------------------

Facsimile No. (   )     -
               ---  ---   -----
                      Its:
                          ------------------------------------

CANYON PRODUCTS CORPORATION       INVACARE CREDIT CORPORATION

By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------

INVACARE INTERNATIONAL 
CORPORATION                       INVACARE HOLDINGS CORPORATION



                                         -2-
<PAGE>

By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------

MOBILITE CORPORATION              INVATECTION INSURANCE
                                  COMPANY, INC.

By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------

INVACARE TRADING COMPANY, INC.         INVACARE (DEUTSCHLAND) GMBH

By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------

POIRIER GROUPE INVACARE           INVACARE CANADA INC.

By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------

QUANTRIX CONSULTANTS LIMITED      FROHOCK-STEWART INC.

By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------

MEDICAL EQUIPMENT REPAIR               PRODUCTION RESEARCH
SERVICES INC.                     CORPORATION

By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------

I.H.H. CORP.                           INVACARE CORPORATION


By:                                    By:
   -----------------------------          ----------------------------
   Its:                                   Its: 
        ----------------------                   -----------------------


                                         -3-
<PAGE>

                   NBD BANK, as Agent


                   By: 
                       --------------------------------------

                       Its:
                           ----------------------------------


                                         -4-


<PAGE>

                                     EXHIBIT B-1
                                          
                                          
                                 GUARANTY AGREEMENT


    THIS GUARANTY AGREEMENT, dated as of February 27, 1997 (this "Guaranty")
made by INVACARE CORPORATION, an Ohio corporation (the "Guarantor"), in favor of
the banks which are now, or may at any time hereafter become, parties to the
Loan Agreement hereinafter defined (the "Banks") and NBD BANK, a Michigan
banking corporation, as agent (in such capacity, the "Agent") for such Banks
under the Loan Agreement.  


    W I T N E S S E T H:


    A.   The Guarantor and certain subsidiaries of the Guarantor set forth on
Schedule A hereto (the "Subsidiaries") have entered into a Loan Agreement dated
as of even date herewith (as amended or modified from time to time, together
with any agreement executed in exchange or replacement therefor, the "Loan
Agreement", and all agreements, instruments and other documents executed in
connection therewith, collectively with the Loan Agreement referred to as the
"Loan Agreements") with the Agent and the Banks, pursuant to which the Banks
have agreed to make Loans to the Subsidiaries and, in their sole discretion,
other Subsidiaries of the Guarantor (such subsidiaries and the Subsidiaries
being collectively referred to herein as the "Borrowing Subsidiaries") subject
to the terms and conditions of the Loan Agreement; and

    B.   As a condition to the obligation of the Banks under the Loan
Agreement, the Guarantor is required to fully and unconditionally guarantee,
among other things, the Loans and all other obligations of the Borrowing
Subsidiaries described herein;  

    NOW, THEREFORE, as an inducement to the Banks to enter into the
transactions contemplated by the Loan Agreement, the Guarantor agrees with the
Banks and the Agent as follows:  

    A.   GUARANTEE OF OBLIGATIONS.  (a) The Guarantor hereby (i) guarantees, as
principal obligor and not as surety only, to the Banks and the Agent the prompt
payment of the principal of and any and all accrued and unpaid interest
(including interest which otherwise may cease to accrue by operation of any
insolvency law, rule, regulation or interpretation thereof) on the Loans made to
any of the Borrowing Subsidiaries and all other loans or advances by any Bank to
any of the Borrowing Subsidiaries, or other obligations of any of the Borrowing
Subsidiaries to the Agent and the Banks, including without limitation foreign
exchange loans and advances which are not made pursuant to the terms of the Loan
Agreement, all when due, whether by scheduled maturity, acceleration or
otherwise, all in accordance with the terms of the Loan Agreements and any and
all other present or future amounts which may be payable by any of the Borrowing
Subsidiaries to any Bank or the Agent at any time in connection with or pursuant
to the Loan 

<PAGE>

Documents, including, without limitation, default interest, indemnification
payments and all reasonable costs and expenses incurred by the Banks and the
Agent in connection with enforcing any obligations of the Borrowing Subsidiaries
thereunder, including without limitation the reasonable fees and disbursements
of counsel, (ii) guarantees the prompt and punctual performance and observance
of each and every term, covenant or agreement contained in each Loan Document to
be performed or observed on the part of any of the Borrowing Subsidiaries, and
(iii) agrees to make prompt payment, on demand, of any and all reasonable costs
and expenses incurred by the Banks or the Agent in connection with enforcing the
obligations of the Guarantor hereunder, including, without limitation, the
reasonable fees and disbursements of counsel (all of the foregoing described in
(i), (ii) and (iii) whether now existing or hereafter arising, being
collectively referred to as the "Guaranteed Obligations"). 

         (a)  If for any reason any duty, agreement or obligation of any of the
Borrowing Subsidiaries contained in the Loan Agreements shall not be performed
or observed by the relevant Borrowing Subsidiary as provided therein, or if any
amount payable under or in connection with the Loan Agreements shall not be paid
in full when the same becomes due and payable, the Guarantor undertakes to
perform or cause to be performed promptly each of such duties, agreements and
obligations and to pay forthwith each such amount to the Agent for the account
of the Banks regardless of any defense or setoff or counterclaim which any of
the Borrowing Subsidiaries  may have or assert, and regardless of any other
condition or contingency.  

         (b)  The date and amount of the Guaranteed Obligations shown upon the
books and records of each respective Bank and in any certificate delivered by
any Bank to the Guarantor in respect thereof shall be prima facie evidence of
the amount owing and unpaid the Guaranteed Obligations.  The failure to record
any such information on such books and records shall not, however, limit or
otherwise affect the obligations of any of the Borrowing Subsidiaries to repay
the Guaranteed Obligations or the obligations of the Guarantor hereunder with
respect thereto.  

    2.   NATURE OF GUARANTY.  This Guaranty is an absolute and unconditional
and irrevocable guaranty of payment and not a guaranty of collection and is
wholly independent of and in addition to other rights and remedies of the Banks
and the Agent and is not contingent upon the pursuit by the Banks and the Agent
of any such rights and remedies, such pursuit being hereby waived by the
Guarantor.  

    3.   WAIVERS AND OTHER AGREEMENTS.  The Guarantor hereby unconditionally
(a) waives any requirement that the Banks or the Agent, upon the occurrence of
an "Event of Default" (as defined in the Loan Agreement) or an event of default
under any of the other Loan Agreements by any of the Borrowing Subsidiaries,
first make demand upon, or seek to enforce remedies against, any or all of the
Borrowing Subsidiaries before demanding payment under or seeking to enforce this
Guaranty, (b) covenants that this Guaranty will not be discharged except by
complete performance of all obligations of the Borrowing Subsidiaries contained
in the Loan Agreements, (c) agrees that this Guaranty shall remain in full force
and effect without regard to, and shall not be affected or impaired, without
limitation, by any invalidity, irregularity or unenforceability in whole or in
part of the Loan Agreements, or any limitation on the liability of any of the
Borrowing Subsidiaries thereunder, or any limitation on the method or terms of
payment thereunder which may now or hereafter be caused or imposed in any manner
whatsoever, (d) waives diligence, presentment and protest with respect to, and
any notice of default or dishonor in the payment of any amount at any time
payable by any of the Borrowing 

                                         -2-
<PAGE>

Subsidiaries under or in connection with the Loan Agreements, and further waives
any requirement of notice of acceptance of, or other formality relating to, this
Guaranty and (e) agrees that the Guaranteed Obligations shall include any
amounts paid by any of the Borrowing Subsidiaries to any Bank or the Agent which
may be required to be returned to any of the Borrowing Subsidiaries, or to its
representative or to a trustee, custodian or receiver for any of the Borrowing
Subsidiaries, and this Guaranty shall continue to be effective, or be
reinstated, as the case may be, with the respect to any amounts which may be
required to be so returned. 

    4.   OBLIGATIONS ABSOLUTE.  The obligations, covenants, agreements and
duties of the Guarantor under this Guaranty shall not be released, affected or
impaired by any of the following whether or not undertaken with notice to or
consent of the Guarantor:  (a) any assignment or transfer, in whole or in part,
of the Loans made to the Borrowing Subsidiaries or the Loan Agreements although
made without notice to or consent of the Guarantor, or (b) any waiver by any
Bank or the Agent, or by any other person, of the performance or observance by
any of the Borrowing Subsidiaries of any of the agreements, covenants, terms or
conditions contained in the Loan Agreements, or (c) any indulgence in or the
extension of the time for payment by any of the Borrowing Subsidiaries of any
amounts payable under or in connection with the Loan Agreements, or of the time
for performance by any of the Borrowing Subsidiaries of any other obligations
under or arising out of the Loan Agreements, or the extension or renewal
thereof, or (d) the modification, amendment or waiver (whether material or
otherwise) of any duty, agreement or obligation of any of the Borrowing
Subsidiaries set forth in the Loan Agreements (the modification, amendment or
waiver from time to time of the Loan Agreements being expressly authorized
without further notice to or consent of the Guarantor), or (e) the voluntary or
involuntary liquidation, sale or other disposition of all or substantially all
of the assets of any of the Borrowing Subsidiaries, or any receivership,
insolvency, bankruptcy, reorganization, or other similar proceedings, affecting
any of the Borrowing Subsidiaries or any of their assets, or (f) the merger or
consolidation of any of the Borrowing Subsidiaries or the Guarantor with any
other person, or (g) the release or discharge of any of the Borrowing
Subsidiaries or the Guarantor from the performance or observance of any
agreement, covenant, term or condition contained in the Loan Agreements, by
operation of law, or (h) any other cause whether similar or dissimilar to the
foregoing which would release, affect or impair the obligations, covenants,
agreements or duties of the Guarantor hereunder.  

    5.   FOREIGN CURRENCY.  This Guaranty arises in the context of an
international transaction, and the specification of payment in foreign currency
to the Agent and the Banks pursuant to the Loan Agreement is of the essence. 
The foreign currency shall be the currency of account and payment under the Loan
Agreements.  The obligation of the Guarantor shall not be discharged by an
amount paid in any other currency or at another place, whether pursuant to a
judgment or otherwise, to the extent that the amount so paid, on prompt
conversion into the foreign currency and transfer to the Agent and the Banks
under normal banking procedure, does not yield the amount of foreign currency
due under this Guaranty.  In the event that any payment, whether pursuant to a
judgment or otherwise, upon conversion and transfer, does not result in payment
of 

                                         -3-
<PAGE>

the amount of foreign currency due under this Guaranty, the Agent and the Banks
shall have an independent cause of action against the Guarantor for the foreign
currency deficiency.

    6.   EVENTS OF DEFAULT.  The occurrence of any "Event of Default" (as
defined in the Loan Agreement) shall be deemed an "event of default" hereunder
unless waived by the Banks pursuant to paragraph 8.

    7.   REMEDIES.  Upon the occurrence and during the continuance of such
event of default, the Agent may, and upon being directed to do so by the
Required Banks, shall enforce its rights either by suit in equity, or by action
at law, or by other appropriate proceedings, whether for the specific
performance (to the extent permitted by law) of any covenant or agreement
contained in this Guaranty or in aid of the exercise of any power granted in
this Guaranty and may enforce payment under this Guaranty and any of its other
rights available at law or in equity.  

    8.   AMENDMENTS, ETC.  This Guaranty may be amended from time to time and
any provision hereof may be waived in accordance with the requirements of
Section 8.1 of the Loan Agreement.  No amendment or waiver of any provision of
this Guaranty nor consent to any departure by the Guarantor therefrom shall be
effective unless the same shall be in writing and signed by the Required Banks
or all of the Banks, as the case may be, and, to the extent any rights or duties
of the Agent may be affected, the Agent, and then such amendment, waiver or
consent shall be effective only in the specific instance and for the specific
purpose for which given.  

    9.   NOTICES.  All notices and other communications hereunder shall be in
writing and made in accordance with Section 8.2 of the Loan Agreement.

    10.  CONDUCT NO WAIVER; REMEDIES CUMULATIVE.  The obligations of the
Guarantor under this Guaranty are continuing obligations and a fresh cause of
action shall arise in respect of each event of default hereunder.  No course of
dealing on the part of any Bank or the Agent, nor any delay or failure on the
part of any Bank or the Agent in exercising any right, power or privilege
hereunder shall operate as a waiver of such right, power or privilege or
otherwise prejudice any Bank or the Agent's rights and remedies hereunder; nor
shall any single or partial exercise thereof preclude any further exercise
thereof or the exercise of any other right, power or privilege.  No right or
remedy conferred upon or reserved to the Banks or the Agent under this Guaranty
is intended to be exclusive of any other right or remedy, and every right and
remedy shall be cumulative and in addition to every other right or remedy given
hereunder or now or hereafter existing under any applicable law.  Every right 
and remedy given by this Guaranty or by applicable law to the Banks or the Agent
may be exercised from time to time and as often as may be deemed expedient by
them.  

    11.  RELIANCE ON AND SURVIVAL OF VARIOUS PROVISIONS.  All terms, covenants,
agreements, representations and warranties of the Guarantor made herein or in
any certificate or other document delivered pursuant hereto shall be deemed to
be material and to have been relied upon by the Banks or the Agent,
notwithstanding any investigation heretofore or hereafter made by the Banks or
the Agent or on their behalf.  


                                         -4-
<PAGE>

    12.  NO INVESTIGATION BY THE BANKS OR THE AGENT.  The Guarantor hereby
waives unconditionally any obligation which, in the absence of such provision,
the Banks or the Agent might otherwise have to investigate or to assure that
there has been compliance with the law of any jurisdiction with respect to the
Guaranteed Obligations recognizing that, to save both time and expense, the
Guarantor has requested that the Banks and the Agent not undertake such
investigation.  The Guarantor hereby expressly confirms that the obligations of
the Guarantor hereunder shall remain in full force and effect without regard to
compliance or noncompliance with any such law and irrespective of any
investigation or knowledge of any Bank or the Agent of any such law.

    13.  GOVERNING LAW.  This Guaranty is a contract made under, and the rights
and obligations of the parties hereunder, shall be governed by and construed in
accordance with, the laws of the State of Michigan applicable to contracts to be
made and to be performed entirely with such State without regard to the choice
of law principles of such State.  

    14.  HEADINGS.  The headings of the various subdivisions hereof are for
convenience of reference only and shall in no way modify any of its terms or
provisions hereof.  

    15.  CONSTRUCTION OF CERTAIN PROVISIONS.  If any provision of this Guaranty
refers to any action to be taken by any person, or which such person is
prohibited from taking, such provision shall be applicable whether such action
is taken directly or indirectly by such person, whether or not expressly
specified in such provision.  

    16.  INTEGRATION AND SEVERABILITY.  This Guaranty embodies the entire
agreement and understanding between the Guarantor, the Banks and the Agent, and
supersedes all prior all agreements and understandings, relating to the subject
matter hereof.  In any case one or more of the obligations of the Guarantor
under this Guaranty shall be invalid, illegal or unenforceable in any
jurisdiction, the validity, legality and enforceability of the remaining
obligations of the Guarantor shall not in any way be affected or impaired
thereby, and such invalidity, illegality or unenforceability in one jurisdiction
shall not affect the validity, legality or enforceability of the obligations of
the Guarantor under this Guaranty in any other jurisdiction.  

    17.  INDEMNITY.  As a separate, additional and continuing obligation, the
Guarantor unconditionally and irrevocably undertakes and agrees with the Banks
and the Agent that, should the Guaranteed Obligations not be recoverable from
the Guarantor under paragraph 1 for any reason whatsoever (including, without
limitation, by reason of any provision of the Loan Agreement or any other
agreement or instrument executed in connection therewith being or becoming void,
unenforceable, or otherwise invalid under any applicable law) then,
notwithstanding any knowledge thereof by any Bank or the Agent at any time, the
Guarantor as sole, original and independent obligor, upon demand by the Agent,
will make payment to the Agent for the account of the Banks and the Agent of the
Guaranteed Obligations by way of a full indemnity in such currency and otherwise
in such manner as is provided in the Loan Agreement or such other agreement or
instrument, as the case may be.


                                         -5-
<PAGE>

    18.  SUBORDINATION, SUBROGATION, ETC.  The Guarantor agrees that any
present or future indebtedness, obligations or liabilities of any Borrowing
Subsidiary to the Guarantor shall be fully subordinate and junior in right and
priority of payment to any present or future indebtedness, obligations or
liabilities of any Borrowing Subsidiary to the Banks and the Agent, and the
Guarantor shall not exercise any right of subrogation, reimbursement or
indemnity whatsoever nor any right of recourse to security for the debts and
obligations of any Borrowing Subsidiary, until the Loan Agreement shall expire
or be terminated and all of the Guaranteed Obligations have been paid in full
and are not subject to any right of revocation or rescission.

    19.  JURISDICTION AND VENUE.  The Guarantor agrees that any legal action or
proceeding with respect to this Guaranty or the Loan Agreement or the
transactions contemplated thereby may be brought only in any court in the State
of Michigan, or any court of the United States of America sitting in the State
of Michigan, and the Guarantor hereby submits to and accepts generally and
unconditionally the jurisdiction of those courts with respect to its person and
property, and irrevocably consents to the service of process in connection with
any such action or proceeding by personal delivery to the Guarantor or by
mailing thereof by registered or certified mail, postage prepaid, to the
Guarantor at its address as provided by it from time to time under the Loan
Agreements.  Nothing in this paragraph shall affect the right of the Agent or
any Bank to serve process in any other manner permitted by law or limit the
right of the Agent or any Bank to bring any such action or proceeding against
the Guarantor or its property in the courts of any other jurisdiction.  The
Guarantor hereby irrevocably waives any objection to the laying of venue of any
such suit or proceeding in the above-described courts.

    20.  WAIVER OF JURY TRIAL.  THE AGENT, THE BANKS AND THE GUARANTOR, AFTER
CONSULTING OR HAVING HAD THE OPPORTUNITY TO CONSULT WITH COUNSEL, KNOWINGLY,
VOLUNTARILY AND INTENTIONALLY WAIVE ANY RIGHT ANY OF THEM MAY HAVE TO A TRIAL BY
JURY IN ANY LITIGATION BASED UPON OR ARISING OUT OF THIS GUARANTY OR ANY RELATED
INSTRUMENT OR AGREEMENT OR ANY OF THE TRANSACTIONS CONTEMPLATED BY THIS
GUARANTY.  NEITHER THE AGENT, ANY BANK NOR THE GUARANTOR SHALL SEEK TO
CONSOLIDATE, BY COUNTERCLAIM OR OTHERWISE, ANY SUCH ACTION IN WHICH A JURY TRIAL
HAS BEEN WAIVED WITH ANY OTHER ACTION IN WHICH A JURY TRIAL CANNOT BE OR HAS NOT
BEEN WAIVED. THESE PROVISIONS SHALL NOT BE DEEMED TO HAVE BEEN MODIFIED IN ANY
RESPECT OR RELINQUISHED BY THE AGENT, ANY Bank OR THE GUARANTOR EXCEPT BY A
WRITTEN INSTRUMENT EXECUTED BY ALL OF THEM.  

    21.  INAPPLICABILITY OF SURETY PROVISIONS.  The parties hereby agree that
the Guarantor is not a surety within the meaning of Section 1341.03 of the Ohio
Revised Code.
 

                                         -6-
<PAGE>

    IN WITNESS WHEREOF, the Guarantor has caused this Guaranty to be duly
executed and delivered as of this 27th day of February, 1997


INVACARE CORPORATION


By:
    -----------------------------------

    Its:
         -----------------------------


                                         -7-

<PAGE>

                                          
                                    EXHIBIT B-2
                                          
                                          
                           SUBSIDIARY GUARANTY AGREEMENT


    THIS SUBSIDIARY GUARANTY AGREEMENT, dated as of February 27, 1997 (this
"Guaranty") made by ___________________, a _________ corporation (the
"Guarantor"), in favor of the banks which are now, or may at any time hereafter
become, parties to the Loan Agreement hereinafter defined (the "Banks") and NBD
BANK, a Michigan banking corporation, as agent (in such capacity, the "Agent")
for such Banks under the Loan Agreement.  


                                 W I T N E S S E T H:


    A.   Invacare Corporation, an Ohio corporation (the "Company") has entered
into a Loan Agreement dated as of even date herewith (as amended or modified
from time to time, together with any agreement executed in exchange or
replacement therefor, the "Loan Agreement", and all agreements, instruments and
other documents executed in connection therewith, collectively with the Loan
Agreement referred to as the "Loan Agreements") with the Agent and the Banks,
pursuant to which the Banks have agreed to make Loans to the Company and,
subject to certain terms and conditions in the Loan Agreement, Subsidiaries of
the Company (the Company and such Subsidiaries being collectively referred to
herein as the "Borrowers") subject to the terms and conditions of the Loan
Agreement; and

    B.   As a condition to the obligation of the Banks under the Loan
Agreement, the Guarantor is required to fully and unconditionally guarantee,
among other things, the Loans and all other obligations of the Borrowers
described herein;  

         C.   In consideration of the financial and other support that the
Company has provided, and such financial and other support as the Company may in
the future provide, to the Guarantor, and in order to induce the Banks and the
Agent to enter into the Loan Agreement, the Guarantor is willing to guarantee
the obligations of the Borrowers under the Loan Agreement, the Notes, and the
other Loan Documents;
         
    NOW, THEREFORE, as an inducement to the Banks to enter into the
transactions contemplated by the Loan Agreement, the Guarantor agrees with the
Banks and the Agent as follows:  

    1.   GUARANTEE OF OBLIGATIONS.  (a) The Guarantor hereby (i) guarantees, as
principal obligor and not as surety only, to the Banks and the Agent the prompt
payment of the principal of and any and all accrued and unpaid interest
(including interest which otherwise may 

<PAGE>

cease to accrue by operation of any insolvency law, rule, regulation or
interpretation thereof) on the Loans made to any of the Borrowers and all other
loans or advances by any Bank to any of the Borrowers, or other obligations of
any of the Borrowers to the Agent and the Banks, including without limitation
foreign exchange loans and advances which are not made pursuant to the terms of
the Loan Agreement, all when due, whether by scheduled maturity, acceleration or
otherwise, all in accordance with the terms of the Loan Agreements and any and
all other present or future amounts which may be payable by any of the Borrowers
to any Bank or the Agent at any time in connection with or pursuant to the Loan
Documents, including, without limitation, default interest, indemnification
payments and all reasonable costs and expenses incurred by the Banks and the
Agent in connection with enforcing any obligations of the Borrowers thereunder,
including without limitation the reasonable fees and disbursements of counsel,
(ii) guarantees the prompt and punctual performance and observance of each and
every term, covenant or agreement contained in each Loan Document to be
performed or observed on the part of any of the Borrowers, and (iii) agrees to
make prompt payment, on demand, of any and all reasonable costs and expenses
incurred by the Banks or the Agent in connection with enforcing the obligations
of the Guarantor hereunder, including, without limitation, the reasonable fees
and disbursements of counsel (all of the foregoing described in (i), (ii) and
(iii) whether now existing or hereafter arising, being collectively referred to
as the "Guaranteed Obligations"). 

         (b)  If for any reason any duty, agreement or obligation of any of the
Borrowers contained in the Loan Agreements shall not be performed or observed by
the relevant Borrower as provided therein, or if any amount payable under or in
connection with the Loan Agreements shall not be paid in full when the same
becomes due and payable, the Guarantor undertakes to perform or cause to be
performed promptly each of such duties, agreements and obligations and to pay
forthwith each such amount to the Agent for the account of the Banks regardless
of any defense or setoff or counterclaim which any of the Borrowers may have or
assert, and regardless of any other condition or contingency.  

         (c)  The date and amount of the Guaranteed Obligations shown upon the
books and records of each respective Bank and in any certificate delivered by
any Bank to the Guarantor in respect thereof shall be prima facie evidence of
the amount owing and unpaid the Guaranteed Obligations.  The failure to record
any such information on such books and records shall not, however, limit or
otherwise affect the obligations of any of the Borrowers to repay the Guaranteed
Obligations or the obligations of the Guarantor hereunder with respect 
thereto.  

    2.   NATURE OF GUARANTY.  This Guaranty is an absolute and unconditional
and irrevocable guaranty of payment and not a guaranty of collection and is
wholly independent of and in addition to other rights and remedies of the Banks
and the Agent and is not contingent upon the pursuit by the Banks and the Agent
of any such rights and remedies, such pursuit being hereby waived by the
Guarantor.  

    3.   WAIVERS AND OTHER AGREEMENTS.  The Guarantor hereby unconditionally
(a) waives any requirement that the Banks or the Agent, upon the occurrence of
an "Event of Default" (as defined in the Loan Agreement) or an event of default
under any of the other Loan Agreements by any of the Borrowers, first make
demand upon, or seek to enforce remedies against, any or all of 

                                         -2-
<PAGE>

the Borrowers before demanding payment under or seeking to enforce this
Guaranty, (b) covenants that this Guaranty will not be discharged except by
complete performance of all obligations of the Borrowers contained in the Loan
Agreements, (c) agrees that this Guaranty shall remain in full force and effect
without regard to, and shall not be affected or impaired, without limitation, by
any invalidity, irregularity or unenforceability in whole or in part of the Loan
Agreements, or any limitation on the liability of any of the Borrowers
thereunder, or any limitation on the method or terms of payment thereunder which
may now or hereafter be caused or imposed in any manner whatsoever, (d) waives
diligence, presentment and protest with respect to, and any notice of default or
dishonor in the payment of any amount at any time payable by any of the
Borrowers under or in connection with the Loan Agreements, and further waives
any requirement of notice of acceptance of, or other formality relating to, this
Guaranty and (e) agrees that the Guaranteed Obligations shall include any
amounts paid by any of the Borrowers to any Bank or the Agent which may be
required to be returned to any of the Borrowers, or to its representative or to
a trustee, custodian or receiver for any of the Borrowers, and this Guaranty
shall continue to be effective, or be reinstated, as the case may be, with the
respect to any amounts which may be required to be so returned. 

    4.   OBLIGATIONS ABSOLUTE.  The obligations, covenants, agreements and
duties of the Guarantor under this Guaranty shall not be released, affected or
impaired by any of the following whether or not undertaken with notice to or
consent of the Guarantor:  (a) any assignment or transfer, in whole or in part,
of the Loans made to the Borrowers or the Loan Agreements although made without
notice to or consent of the Guarantor, or (b) any waiver by any Bank or the
Agent, or by any other person, of the performance or observance by any of the
Borrowers of any of the agreements, covenants, terms or conditions contained in
the Loan Agreements, or (c) any indulgence in or the extension of the time for
payment by any of the Borrowers of any amounts payable under or in connection
with the Loan Agreements, or of the time for performance by any of the Borrowers
of any other obligations under or arising out of the Loan Agreements, or the
extension or renewal thereof, or (d) the modification, amendment or waiver
(whether material or otherwise) of any duty, agreement or obligation of any of
the Borrowers set forth in the Loan Agreements (the modification, amendment or
waiver from time to time of the Loan Agreements being expressly authorized
without further notice to or consent of the Guarantor), or (e) the voluntary or
involuntary liquidation, sale or other disposition of all or substantially all
of the assets of any of the Borrowers, or any receivership, insolvency,
bankruptcy, reorganization, or other similar proceedings, affecting any of the
Borrowers or any of their assets, or (f) the merger or consolidation of any of
the Borrowers or the Guarantor with any other person, or (g) the release or
discharge of any of the Borrowers or the Guarantor from the performance or
observance of any agreement, covenant, term or condition contained in the Loan
Agreements, by operation of law, or (h) any other cause whether similar or
dissimilar to the foregoing which would release, affect or impair the
obligations, covenants, agreements or duties of the Guarantor hereunder.  

    5.   FOREIGN CURRENCY.  This Guaranty arises in the context of an
international transaction, and the specification of payment in foreign currency
to the Agent and the Banks pursuant to the Loan Agreement is of the essence. 
The foreign currency shall be the currency of account and payment under the Loan
Agreements.  The obligation of the Guarantor shall not be discharged by an
amount paid in any other currency or at another place, whether pursuant to a
judgment or otherwise, to the extent that the amount so paid, on prompt
conversion into the foreign 

                                         -3-
<PAGE>

currency and transfer to the Agent and the Banks under normal banking procedure,
does not yield the amount of foreign currency due under this Guaranty.  In the
event that any payment, whether pursuant to a judgment or otherwise, upon
conversion and transfer, does not result in payment of the amount of foreign
currency due under this Guaranty, the Agent and the Banks shall have an
independent cause of action against the Guarantor for the foreign currency
deficiency.

    6.   EVENTS OF DEFAULT.  The occurrence of any "Event of Default" (as
defined in the Loan Agreement) shall be deemed an "event of default" hereunder
unless waived by the Banks pursuant to paragraph 8.

    7.   REMEDIES.  Upon the occurrence and during the continuance of such
event of default, the Agent may, and upon being directed to do so by the
Required Banks, shall enforce its rights either by suit in equity, or by action
at law, or by other appropriate proceedings, whether for the specific
performance (to the extent permitted by law) of any covenant or agreement
contained in this Guaranty or in aid of the exercise of any power granted in
this Guaranty and may enforce payment under this Guaranty and any of its other
rights available at law or in equity.  

    8.   AMENDMENTS, ETC.  This Guaranty may be amended from time to time and
any provision hereof may be waived in accordance with the requirements of
Section 8.1 of the Loan Agreement.  No amendment or waiver of any provision of
this Guaranty nor consent to any departure by the Guarantor therefrom shall be
effective unless the same shall be in writing and signed by the Required Banks
or all of the Banks, as the case may be, and, to the extent any rights or duties
of the Agent may be affected, the Agent, and then such amendment, waiver or
consent shall be effective only in the specific instance and for the specific
purpose for which given.  

    9.   NOTICES.  All notices and other communications hereunder shall be in
writing and made in accordance with Section 8.2 of the Loan Agreement.

    10.  CONDUCT NO WAIVER; REMEDIES CUMULATIVE.  The obligations of the
Guarantor under this Guaranty are continuing obligations and a fresh cause of
action shall arise in respect of each event of default hereunder.  No course of
dealing on the part of any Bank or the Agent, nor any delay or failure on the
part of any Bank or the Agent in exercising any right, power or privilege
hereunder shall operate as a waiver of such right, power or privilege or
otherwise prejudice any Bank or the Agent's rights and remedies hereunder; nor
shall any single or partial exercise thereof preclude any further exercise
thereof or the exercise of any other right, power or privilege.  No right or
remedy conferred upon or reserved to the Banks or the Agent under this Guaranty
is intended to be exclusive of any other right or remedy, and every right and
remedy shall be cumulative and in addition to every other right or remedy given
hereunder or now or hereafter existing under any applicable law.  Every right 
and remedy given by this Guaranty or by applicable law to the Banks or the Agent
may be exercised from time to time and as often as may be deemed expedient by
them.  

    11.  RELIANCE ON AND SURVIVAL OF VARIOUS PROVISIONS.  All terms, covenants,
agreements, representations and warranties of the Guarantor made herein or in
any certificate or other document delivered pursuant hereto shall be deemed to
be material and to have been relied 

                                         -4-
<PAGE>

upon by the Banks or the Agent, notwithstanding any investigation heretofore or
hereafter made by the Banks or the Agent or on their behalf.  

    12.  NO INVESTIGATION BY THE BANKS OR THE AGENT.  The Guarantor hereby
waives unconditionally any obligation which, in the absence of such provision,
the Banks or the Agent might otherwise have to investigate or to assure that
there has been compliance with the law of any jurisdiction with respect to the
Guaranteed Obligations recognizing that, to save both time and expense, the
Guarantor has requested that the Banks and the Agent not undertake such
investigation.  The Guarantor hereby expressly confirms that the obligations of
the Guarantor hereunder shall remain in full force and effect without regard to
compliance or noncompliance with any such law and irrespective of any
investigation or knowledge of any Bank or the Agent of any such law.

    13.  GOVERNING LAW.  This Guaranty is a contract made under, and the rights
and obligations of the parties hereunder, shall be governed by and construed in
accordance with, the laws of the State of Michigan applicable to contracts to be
made and to be performed entirely with such State without regard to the choice
of law principles of such State.  

    14.  HEADINGS.  The headings of the various subdivisions hereof are for
convenience of reference only and shall in no way modify any of its terms or
provisions hereof.  

    15.  CONSTRUCTION OF CERTAIN PROVISIONS.  If any provision of this Guaranty
refers to any action to be taken by any person, or which such person is
prohibited from taking, such provision shall be applicable whether such action
is taken directly or indirectly by such person, whether or not expressly
specified in such provision.  

    16.  INTEGRATION AND SEVERABILITY.  This Guaranty embodies the entire
agreement and understanding between the Guarantor, the Banks and the Agent, and
supersedes all prior all agreements and understandings, relating to the subject
matter hereof.  In any case one or more of the obligations of the Guarantor
under this Guaranty shall be invalid, illegal or unenforceable in any
jurisdiction, the validity, legality and enforceability of the remaining
obligations of the Guarantor shall not in any way be affected or impaired
thereby, and such invalidity, illegality or unenforceability in one jurisdiction
shall not affect the validity, legality or enforceability of the obligations of
the Guarantor under this Guaranty in any other jurisdiction.  

    17.  INDEMNITY.  As a separate, additional and continuing obligation, the
Guarantor unconditionally and irrevocably undertakes and agrees with the Banks
and the Agent that, should the Guaranteed Obligations not be recoverable from
the Guarantor under paragraph 1 for any reason whatsoever (including, without
limitation, by reason of any provision of the Loan Agreement or any other
agreement or instrument executed in connection therewith being or becoming void,
unenforceable, or otherwise invalid under any applicable law) then,
notwithstanding any knowledge thereof by any Bank or the Agent at any time, the
Guarantor as sole, original and independent obligor, upon demand by the Agent,
will make payment to the Agent for the account of the Banks and the Agent of the
Guaranteed Obligations by way of a full 

                                         -5-
<PAGE>

indemnity in such currency and otherwise in such manner as is provided in the
Loan Agreement or such other agreement or instrument, as the case may be.

    18.  SUBORDINATION, SUBROGATION, ETC.  The Guarantor agrees that any
present or future indebtedness, obligations or liabilities of any Borrower to
the Guarantor shall be fully subordinate and junior in right and priority of
payment to any present or future indebtedness, obligations or liabilities of any
Borrower to the Banks and the Agent, and the Guarantor shall not exercise any
right of subrogation, reimbursement or indemnity whatsoever nor any right of
recourse to security for the debts and obligations of any Borrower, until the
Loan Agreement shall expire or be terminated and all of the Guaranteed
Obligations have been paid in full and are not subject to any right of
revocation or rescission, all as more fully set forth in the Subrogation and
Contribution Agreement of even date herewith (as the same shall be amended or
modified from time to time) among the Guarantors and the Company.

    19.  LIMITATION ON OBLIGATIONS.  (a) It is the intention of each of the
Guarantor, the other Guarantors and the Banks that each of the Guarantor's
obligations hereunder shall be equal to, but not in excess of, as of any date,
the greater of the following (such greater amount determined hereunder being the
relevant Guarantor's "Maximum Liability"): (i) the aggregate amount of all
monies received by the Guarantor from the Company after the date hereof (whether
by loan, capital infusion or other means), or (ii) the maximum amount (such
amount being the  Guarantor's "Alternative Limitation") not subject to avoidance
under Title 11 of the United States Code, as same may be amended from time to
time, or any applicable state law (collectively, the "Bankruptcy Code"). To that
end, but as to the Alternative Limitation of the Guarantor, only to the extent
such obligations would otherwise be subject to avoidance under the Bankruptcy
Code if the Guarantor is not deemed to have received valuable consideration,
fair value or reasonably equivalent value for its obligations hereunder, any
Guarantor's obligations hereunder shall be reduced to that amount which, after
giving effect thereto, would not render the Guarantor insolvent, or leave the
Guarantor with an unreasonably small capital to conduct its business, or cause
the Guarantor to have incurred debts (or intended to have incurred debts) beyond
its ability to pay such debts as they mature, at the time such obligations are
deemed to have been incurred under the Bankruptcy Code.  As used herein, the
terms "insolvent" and "unreasonably small capital" shall likewise be determined
in accordance with the Bankruptcy Code.  This paragraph 19(a) with respect to
the Alternative Limitation of the Guarantor is intended solely to preserve the
rights of the Agent hereunder to the maximum extent not subject to avoidance
under the Bankruptcy Code, and neither the Guarantor nor any other person or
entity shall have any right or claim under this paragraph 19(a) with respect to
the Alternative Limitation, except to the extent necessary so that the
obligations of the Guarantor hereunder shall not be rendered voidable under the
Bankruptcy Code.

    (b)  The Guarantor agrees that the Guaranteed Obligations may at any time
and from time-to-time exceed the Maximum Liability of the Guarantor, and may
exceed the aggregate Maximum Liability of all other Guarantors, without
impairing this Guaranty or affecting the rights and remedies of the Agent
hereunder. Nothing in this paragraph 19(b) shall be construed to increase the
Guarantor's obligations hereunder beyond its Maximum Liability.


                                         -6-
<PAGE>

    (c)  The Guarantor shall have the rights of subrogation and contribution as
described in the Subrogation and Contribution Agreement of even date herewith
among the Guarantors and the Company, as amended from time to time.

    20.  REPRESENTATIONS AND WARRANTIES.  The Guarantors represents and
warrants (which representations and warranties shall be deemed to have been
renewed upon each request for a Loan under the Loan Agreement) that:

         (a)  it (i) is a corporation duly organized, validly existing and in
good standing under the laws of its jurisdiction of incorporation; (ii) has all
requisite corporate power, and has all material governmental licenses,
authorizations, consents and approvals necessary to own its assets and carry on
its business as now being or as proposed to be conducted; and (iii) is qualified
to do business in all jurisdictions in which the nature of the business
conducted by it makes such qualification necessary and where failure so to
qualify would not have a material adverse effect on the business or financial
condition of the Company and its Subsidiaries taken as a whole.

         (b)  it has all necessary corporate power and authority to execute,
deliver and perform its obligations under this Guaranty; the execution, delivery
and performance of this Guaranty have been duly authorized by all necessary
corporate action; and this Guaranty has been duly and validly executed and
delivered by it and constitutes its legal, valid and binding obligation,
enforceable in accordance with its terms, except as the enforceability thereof
may be limited by bankruptcy, insolvency, reorganization, or moratorium or other
similar laws relating to the enforcement of creditors' rights generally and by
general equitable principles.

         (c)  neither the execution and delivery by it of this Guaranty nor
compliance with the terms and provisions hereof will conflict with or result in
a breach of, or require any consent under, its certificate of incorporation or
organization or by-laws or operating agreement or any applicable law or
regulation, or any order, writ, injunction or decree of any court or
governmental authority or agency, or any agreement or instrument to which it is
a party or by which it is bound or to which it is subject, or constitute a
default under any such agreement or instrument, or result in the creation or
imposition of any Lien upon any of its revenues or assets pursuant to the terms
of any such agreement or instrument.

         21.  JOINT AND SEVERAL OBLIGATIONS.  The obligations of the Guarantor
hereunder shall be several and also joint each with all or with any one or more
of the other parties now or hereafter guaranteeing any of the Guaranteed
Obligations, and such obligations of the Guarantors may be enforced against each
Guarantor separately or against any two or more jointly, or against some
separately and some jointly.

    22.  JURISDICTION AND VENUE.  The Guarantor agrees that any legal action or
proceeding with respect to this Guaranty or the Loan Agreement or the
transactions contemplated thereby may be brought only in any court in the State
of Michigan, or any court of the United States 

                                         -7-
<PAGE>

of America sitting in the State of Michigan, and the Guarantor hereby submits to
and accepts generally and unconditionally the jurisdiction of those courts with
respect to its person and property, and irrevocably consents to the service of
process in connection with any such action or proceeding by personal delivery to
the Guarantor or by mailing thereof by registered or certified mail, postage
prepaid, to the Guarantor at its address as provided by it from time to time
under the Loan Agreements.  Nothing in this paragraph shall affect the right of
the Agent or any Bank to serve process in any other manner permitted by law or
limit the right of the Agent or any Bank to bring any such action or proceeding
against the Guarantor or its property in the courts of any other jurisdiction. 
The Guarantor hereby irrevocably waives any objection to the laying of venue of
any such suit or proceeding in the above-described courts.

    23.  WAIVER OF JURY TRIAL.  THE AGENT, THE BANKS AND THE GUARANTOR, AFTER
CONSULTING OR HAVING HAD THE OPPORTUNITY TO CONSULT WITH COUNSEL, KNOWINGLY,
VOLUNTARILY AND INTENTIONALLY WAIVE ANY RIGHT ANY OF THEM MAY HAVE TO A TRIAL BY
JURY IN ANY LITIGATION BASED UPON OR ARISING OUT OF THIS GUARANTY OR ANY RELATED
INSTRUMENT OR AGREEMENT OR ANY OF THE TRANSACTIONS CONTEMPLATED BY THIS
GUARANTY.  NEITHER THE AGENT, ANY BANK NOR THE GUARANTOR SHALL SEEK TO
CONSOLIDATE, BY COUNTERCLAIM OR OTHERWISE, ANY SUCH ACTION IN WHICH A JURY TRIAL
HAS BEEN WAIVED WITH ANY OTHER ACTION IN WHICH A JURY TRIAL CANNOT BE OR HAS NOT
BEEN WAIVED. THESE PROVISIONS SHALL NOT BE DEEMED TO HAVE BEEN MODIFIED IN ANY
RESPECT OR RELINQUISHED BY THE AGENT, ANY Bank OR THE GUARANTOR EXCEPT BY A
WRITTEN INSTRUMENT EXECUTED BY ALL OF THEM.  

    24.  INAPPLICABILITY OF SURETY PROVISIONS.  The parties hereby agree that
the Guarantor is not a surety within the meaning of Section 1341.03 of the Ohio
Revised Code.
 

                                         -8-
<PAGE>

    IN WITNESS WHEREOF, the Guarantor has caused this Guaranty to be duly
executed and delivered as of this 27th day of February, 1997.


                                       ---------------------------------


                                  By:
                                       ----------------------------------

                                  Its:
                                       ----------------------------------


                                          9


<PAGE>

                                     EXHIBIT C
                                          
                               REVOLVING CREDIT NOTE



                                                              February 27, 1997
                                                              Detroit, Michigan



    FOR VALUE RECEIVED, INVACARE CORPORATION, an Ohio corporation (the
"Borrower"), hereby promises to pay to the order of _________________________, a
________________ (the "Bank"), at the principal banking office of the Agent in
lawful money of the United States of America and in immediately available funds,
the principal sum of _____________________ Dollars ($_______________), or such
lesser amount of all unpaid Revolving Credit Loans as recorded in the books and
records of the Bank, on the Termination Date; and to pay interest on the unpaid
principal balance hereof from time to time outstanding, in like money and funds,
for the period from the date hereof until the Revolving Credit Loans evidenced
hereby shall be paid in full, at the rates per annum and on the dates provided
in the Loan Agreement referred to below.  

    The Bank is hereby authorized by the Borrower to record on its books and
records, the date, amount and type of each Revolving Credit Loan, the duration
of the related Interest Period (if applicable), the amount of each payment or
prepayment of principal thereon and the other information provided for in such
books and records, which such books and records shall constitute prima facie
evidence of the information so recorded, PROVIDED, HOWEVER, that any failure by
the Bank to record any such information shall not relieve the Borrower of its
obligation to repay the outstanding principal amount of such Revolving Credit
Loans, all accrued interest thereon and any amount payable with respect thereto
in accordance with the terms of this Revolving Credit Note and the Loan
Agreement.  

    The Borrower and each endorser or guarantor hereof waives demand,
presentment, protest, diligence, notice of dishonor and any other formality in
connection with this Revolving Credit Note.  Should the indebtedness evidenced
by this Revolving Credit Note or any part thereof be collected in any proceeding
or be placed in the hands of attorneys for collection, the Borrower agrees to
pay, in addition to the principal, interest and other sums due and payable
hereon, all costs of collecting this Revolving Credit Note, including attorneys'
fees and expenses (including without limitation allocated costs and expenses of
attorneys who are employees of the Bank).
  
    This Revolving Credit Note evidences one or more Revolving Credit Loans
made under a Loan Agreement, dated as of February 27, 1997 (as amended or
modified from time to time, the "Loan Agreement"), by and among Invacare
Corporation, an Ohio corporation (the "Company"), certain Borrowing Subsidiaries
designated therein from time to time (collectively with the Company, the
"Borrowers"), the banks (including the Bank) named therein and NBD 

<PAGE>

Bank, as agent for the banks, to which reference is hereby made for a statement
of the circumstances under which this Revolving Credit Note is subject to
prepayment and under which its due date may be accelerated.  Capitalized terms
used but not defined in this Revolving Credit Note shall have the respective
meanings assigned to them in the Loan Agreement.
 
                                         -2-
<PAGE>

    This Revolving Credit Note is made under, and shall be governed by and
construed in accordance with, the laws of the State of Michigan in the same
manner applicable to contracts made and to be performed entirely within such
State and without giving effect to choice of law principles of such State.

                                       INVACARE CORPORATION

                                       By:
                                          ----------------------------------
                                          Its:
                                              ------------------------------




                                         -3-



<PAGE>

                               SWING LINE NOTE
                                          
                                          
                                          
$10,000,000                                                    February 27, 1997
                                                               Detroit, Michigan



    FOR VALUE RECEIVED, Invacare Corporation, an Ohio corporation (the
"Borrower"), promises to pay to the order of The First National Bank of Chicago,
a national banking association (the "Bank"), at the principal banking office of
the Agent in lawful money of the United States of America and in immediately
available funds, the principal sum of Ten Million Dollars ($10,000,000) or such
lesser amount of unpaid Swing Line Loans as recorded in the books and records of
the Bank, on the Termination Date; and to pay interest on the unpaid principal
balance hereof from time to time outstanding, in like money and funds, for the
period from the date hereof until the Swing Line Loans evidenced hereby shall be
paid in full, at the rates per annum and on the dates provided in the Loan
Agreement referred to below.  

    The Bank is hereby authorized by the Borrower to record on its books and
records, the date, amount and type of each Swing Line Loan, the duration of the
related Interest Period (if applicable), the amount of each payment or
prepayment of principal thereon and the other information provided for on such
schedule, which schedule or such books and records, as the case may be, shall
constitute prima facie evidence of the information so recorded, PROVIDED,
HOWEVER, that any failure by the Bank to record any such information shall not
relieve the Borrower of its obligation to repay the outstanding principal amount
of such Swing Line Loans, all accrued interest thereon and any amount payable
with respect thereto in accordance with the terms of this Swing Line Note and
the Loan Agreement.  

    The Borrower and each endorser or guarantor hereof waives demand,
presentment, protest, diligence, notice of dishonor and any other formality in
connection with this Swing Line Note.  Should the indebtedness evidenced by this
Swing Line Note or any part thereof be collected in any proceeding or be placed
in the hands of attorneys for collection, the Borrower agrees to pay, in
addition to the principal, interest and other sums due and payable hereon, all
costs of collecting this Swing Line Note, including attorneys' fees and
expenses.  

    This Swing Line Note evidences one or more Swing Line Loans made under a
Loan Agreement, dated as of February 27, 1997 (as amended or modified from time
to time, the "Loan Agreement"), by and among Invacare Corporation, an Ohio
corporation (the "Company"), the Borrowing Subsidiaries designated therein from
time to time (collectively with the Company, the "Borrowers"), the banks
(including the Bank) named therein and NBD Bank, as agent for the banks, to
which reference is hereby made for a statement of the circumstances under which
this Swing Line Note  is subject to prepayment and under which its due date may
be accelerated and for 

<PAGE>

a description of the collateral and security securing this Swing Line Note. 
Capitalized terms used but not defined in this Swing Line Note shall have the
respective meanings assigned to them in the Loan Agreement.
 
                                         -2-
<PAGE>

    This Swing Line Note is made under, and shall be governed by and construed
in accordance with, the laws of the State of Michigan in the same manner
applicable to contracts made and to be performed entirely within such State and
without giving effect to choice of law principles of such State.

                                       INVACARE CORPORATION


                                       By:
                                          --------------------------

                                          Its:
                                              ----------------------



                                         -3-

<PAGE>

                                     EXHIBIT E
                                          
                                  REQUEST FOR LOAN




To each Bank party to
the referenced Loan Agreement
c/o NBD Bank, as Agent for the Banks
611 Woodward Avenue
Detroit, Michigan  48226

Attention: Midwest Banking Division


    Invacare Corporation, (the "Treasury Manager"), on behalf of the Borrowers
referred to below, hereby requests a Revolving Credit Loan pursuant to
Section 2.5 of the Loan Agreement, dated as of February 27, 1997 (as amended or
modified from time to time, the "Loan Agreement"), among Invacare Corporation,
an Ohio corporation (the "Company"), the Borrowing Subsidiaries designated from
time to time (collectively with the Company, the "Borrowers"), the Banks
referenced therein and you, as Agent for the Banks.

    A Revolving Credit Loan is requested to be made in the amount of $_________
to be made on ____________, 19___ for the account of ____________ (specify
Designated Borrower) and evidenced by the Borrowers' Revolving Credit Notes. 
Such Loan shall be a [insert Interbank Offered Rate Loan or Floating Rate Loan]
and the initial Interest Period, if such requested Loan is a Fixed Rate Loan,
shall be [insert permitted Interest Period].

    In support of this request, the Treasury Manager, on behalf of the
Borrowers, hereby represents and warrants to the Agent and the Banks that:  

    1.   The representations and warranties contained in Article 4 of the
Credit Agreement are true and correct in all material respects on and as of the
date hereof, and will be true and correct in all material respects on the date
such Loan is made (both before and after such Loan is made), as if such
representations and warranties were made on and as of such dates.  

    2.   No Event of Default or Default has occurred and is continuing or will
exist on the date such Loan is made and such Loan shall not cause an Event of
Default or Default.

Acceptance of the proceeds of such Loan by the Designated Borrower shall be
deemed to be a further representation and warranty by the Borrowers that the
representations and warranties made herein are true and correct in all material
respects at the time such proceeds are disbursed.  
Capitalized terms used but not defined herein shall have the respective meanings
assigned to them in the Loan Agreement.  
 
<PAGE>

                                  INVACARE CORPORATION


                                  By: 
                                       -------------------------------------

                                      Its:
                                           ---------------------------------



Dated: ________________, 199_



                                         -2-

<PAGE>



                                     EXHIBIT F
                                          
                                 OPINION OF COUNSEL

    


                                                      February 27, 1997

The First National Bank of Chicago
National City Bank
KeyBank National Association
Societe Generale, Chicago Branch
Sun Trust Bank, Central Florida, NA
Wachovia Bank of Georgia, NA
PNC Bank, NA
Commerzbank Aktiengesellschaft, Chicago Branch
The Sanwa Bank, Limited, Chicago Branch
The Bank of New York
NBD Bank, as Agent

c/o NBD Bank, as Agent
611 Woodward Avenue
Detroit, Michigan 48226

Ladies and Gentlemen:

    We refer to the Loan Agreement dated as of February 27, 1997 (the "Loan
Agreement") by and among Invacare Corporation, an Ohio corporation (the
"Company"), the banks parties thereto (the "Banks") and NBD Bank, a Michigan
corporation, as agent for the Banks (in such capacity, the "Agent"). We have
been requested by the Company and the Guarantors listed on Schedule A attached
hereto (the "Domestic Guarantors") to give our opinion pursuant to Section
2.6(f) of the Loan Agreement and, for purposes of this opinion, the terms used
in this opinion, which are not defined herein, shall have the respective
meanings set forth in the Loan Agreement.  As used herein, "Ohio Guarantors"
shall mean Canyon Products Corporation, Invacare Credit Corporation, Invacare
International Corporation and Invacare Holdings Corporation, each an Ohio
corporation. 

    We have examined the following documents and instruments: (i) the Loan
Agreement, (ii) the Notes, (iii) the Guaranties, (iv) the Subrogation and
Contribution Agreement, (vi) the Second Amendment to Loan Agreement dated as of
February 27, 1997 among the Company, the Borrowing Subsidiaries defined therein,
the banks party thereto (including some of the Banks) and NBD Bank, as agent for
such banks, and (vi) other documents relating to the transactions contemplated
by the Loan Agreement (collectively, items (i) through (vi) are referred to as
the "Loan Documents").  We have also examined and relied upon certified copies
of the Company's 

<PAGE>

February __, 1997
Page 2

and the Domestic Guarantor's articles of incorporation, by-laws and board of
directors resolutions authorizing the Company's and each Domestic Guarantor's
participation in the transactions contemplated by the Loan Agreement.  We have
also copies of all such documents and records of the Company and the Domestic
Guarantors and all such other documents and records, and have made such
investigations of law, as we have deemed necessary and relevant as a basis for
our opinion.  With respect to material factual matters not independently
established by us, we have relied upon certificates of officers of the Company
and the Domestic Guarantors, which reliance we deemed appropriate in the
circumstances.

    Based upon the foregoing, it is our opinion that:

    1.   Each of the Company and each Ohio Corporation is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Ohio, and each is duly qualified to do business, and is in good standing, in all
additional jurisdictions where such qualification is necessary under applicable
law, except where the failure to so qualify to be so would not have a material
adverse effect on the business and financial condition of the Company and its
Subsidiaries taken as a whole.  Each of the Company and each Ohio Corporation
has all requisite corporate power to own or lease the properties used in its
business and to carry on its business as now being conducted.  The Company and
each Ohio Corporation has all requisite corporate power to execute and deliver
the Loan Documents to which it is a party and to engage in the transactions
contemplated by the Loan Documents.

    2.   The execution, delivery and performance by the Company and each
Domestic Guarantor of the Loan Documents have been duly authorized by all
necessary corporate action and are not in contravention of any law, rule or
regulation, or any judgment, decree, writ, injunction, order or award of any
arbitrator, court or governmental authority, or of the terms of the Company's or
any Domestic Guarantor's charter or by-laws, or of any material contract or
undertaking to which the Company or any Domestic Guarantor is a party or by
which the Company or any Domestic Guarantor or any of their respective property
may be bound or affected, and will not result in the imposition of any Lien
except for Permitted Liens. 

    3.   The Loan Documents to which the Company or any Domestic Guarantor is a
party are the legal, valid and binding obligations of the Company and each
Domestic Guarantor enforceable against the Company and each Domestic Guarantor
in accordance with their respective terms.

    4.   Schedule 4.4 of the Loan Agreement correctly sets forth the corporate
name, jurisdiction of incorporation and ownership of each Subsidiary of the
Company.  

    5.   To the best of our knowledge and except as set forth in Schedule 4.5
of the Loan 

<PAGE>

February __, 1997
Page 3

Agreement, there is no action, suit or proceeding pending or threatened against
or affecting the Company or any of its Subsidiaries before or by any court,
governmental authority or arbitrator, which if adversely decided might result,
either individually or collectively, in any material adverse change in the
business, properties, operations or financial condition of the Company or any of
its Subsidiaries taken as a whole or in any material adverse effect on the
legality, validity or enforceability of any Loan Agreement and, to the best of
the Company's knowledge, there is no basis for any such action, suit or
proceeding.

    6.   No consent, approval or authorization of or declaration, registration
or filing with any governmental authority or any nongovernmental person or
entity, including without limitation any creditor, lessor or stockholder of the
Company or any of its Subsidiaries, is required on the part of the Company or
any Subsidiary in connection with the execution, delivery and performance of the
Loan Documents or the transactions contemplated thereby or as a condition to the
legality, validity or enforceability of the Loan Documents, except where the
failure to obtain such consents, approvals, authorizations, declarations,
registrations or filings would not have a material adverse effect on the Company
and its Subsidiaries, taken as a whole..

    This opinion is subject to the qualifications that the enforcement of the
rights and remedies set forth in the Loan Documents are subject to the effect of
applicable bankruptcy, insolvency and other similar laws affecting the
enforcement of creditors' rights generally, and general principles of equity,
whether applied in a proceeding at law or in equity.


                             Very truly yours,


<PAGE>

                                     EXHIBIT G
                                          
                            REQUEST FOR CONTINUATION OR
                                 CONVERSION OF LOAN



                                                 [Date]




To each Bank party to
the referenced Loan Agreement
c/o NBD Bank
as Agent for the Banks
611 Woodward Avenue
Detroit, Michigan 48226

Attention:  Midwest Banking Division


    Invacare Corporation, (the "Treasury Manager") on behalf of the Borrowers
referred to below, hereby requests that $____________ of the principal amount of
the Loan originally made on ____________, 19__, which Loan is currently a
[insert type of Loan], be continued as or converted to, as the case may be, a
[insert type of Loan requested] on ______________, 19__.  If such Loan is
requested to be converted to an Interbank Offered Rate Loan, the Borrower hereby
elects an Interest Period for such Loan of [insert permitted Interest Period].

    In support of this request, the Treasury Manager, on behalf of the
Borrowers, hereby represents and warrants to the Agent and the Banks that:  

    1.   The representations and warranties contained in Article 4 of the Loan
Agreement are true and correct in all material respects on and as of the date
hereof, and will be true and correct in all material respects on the date such
Loan is [continued][converted] (both before and after such Loan is
[continued][converted]), as if such representations and warranties were made on
and as of such dates.  

    2.   No Event of Default or Default has occurred and is continuing or will
exist on the date such Loan is [continued][converted] (whether before or after
such Loan is [continued][converted]).

Acceptance of the proceeds of such [continued][converted] Loan by the Designated
Borrower shall be deemed to be a further representation and warranty that the
representations and warranties made herein are true and correct in all material
respects at the time of such [continuation] [conversion].  

<PAGE>


    Capitalized terms used but not defined herein shall have the respective
meanings assigned to them in the Loan Agreement, dated as of February 27, 1997
among Invacare Corporation, an Ohio corporation (the "Company"), the Borrowing
Subsidiaries designated therein from time to time (collectively with the
Company, the "Borrowers"), the banks named therein and you as agent for the
banks.


                                       INVACARE CORPORATION


                                       By:

                                          -------------------------------

                                           Its:
                                               --------------------------


                                         -2-

<PAGE>

                                     EXHIBIT H
                                          
                             ASSIGNMENT AND ACCEPTANCE



    Reference is made to the Loan Agreement dated as of February 27, 1997 (the
"Loan Agreement") among Invacare Corporation, an Ohio corporation (the
"Company"), certain Borrowing Subsidiaries designated therein from time to time
(collectively with the Company, the "Borrowers"), the banks named therein (the
"Banks") and NBD BANK, as agent for the Banks (the "Agent").  Terms defined in
the Loan Agreement are used herein with the same meaning.

    The "Assignor" and the "Assignee" referred to on Schedule 1 agree as
follows:

    1.   The Assignor hereby sells and assigns (without recourse) to the
Assignee, and the Assignee hereby purchases and assumes from the Assignor, an
interest in and to the Assignor's rights and obligations under the Loan
Agreement as of the date hereof equal to the percentage interest specified on
Schedule 1 of all outstanding rights and obligations under the Loan Agreement. 
After giving effect to such sale and assignment, the Assignee's Commitments and
the amounts of the Loans owing to the Assignee will be as set forth on Schedule
1.

    2.   The Assignor (i) represents and warrants that it is the legal and
beneficial owner of the interest being assigned by it hereunder and that such
interest is free and clear of any adverse claim; (ii) makes no representation or
warranty and assumes no responsibility with respect to any statements,
warranties or representations made in or in connection with the Loan Agreement
or the execution, legality, validity, enforceability, genuineness, sufficiency
or value of the Loan Agreement or any other instrument or document furnished
pursuant thereto; (iii) makes no representation or warranty and assumes no
responsibility with respect to the financial condition of any Borrower or the
performance or observance by any Borrower of any of its obligations under the
Loan Agreement or any other instrument or document furnished pursuant thereto;
and (iv) attaches the Note or Notes held by the Assignor and requests that the
Agent exchange such Note or Notes for a new Note or Notes payable to the order
of the Assignee in an amount equal to the Commitments assumed by the Assignee
pursuant hereto and the Assignor in an amount equal to the Commitments retained
by the Assignor under the Loan Agreement, respectively, as specified on Schedule
1.

    3.   The Assignee (i) confirms that it has received a copy of the Loan
Agreement, together with copies of the financial statements referred to in
Section 4.6 thereof and such other documents and information as it has deemed
appropriate to make its own credit analysis and decision to enter into this
Assignment and Acceptance; (ii) agrees that it will, independently and without
reliance upon the Agent, the Assignor or any other Bank and based on such
documents and information as it shall deem appropriate at the time, continue to
make its own credit decisions in taking or not taking action under the Loan
Agreement; (iii) appoints and authorizes the Agent to take such action as agent
on its behalf and to exercise such powers and discretion under the Loan
Agreement as are delegated to the Agent by the terms thereof, together with such
powers and 


<PAGE>

discretion as are reasonably incidental thereto; (iv) agrees that it will
perform in accordance with their terms of all of the obligations that by the
terms of the Loan Agreement are required to be performed by it as a Bank; and
(v) if the Assignee is organized under the laws of a jurisdiction outside the
United States, attaches the forms prescribed by the Internal Revenue Service of
the United States certifying as to the Assignee's status for purposes of
determining exemption from United States withholding taxes with respect to all
payments to be made to the Assignee under the Loan Agreement and the Notes or
such other documents as are necessary to indicate that all such payments are
subject to such taxes at a rate reduced by an applicable tax treaty.

    4.   Following the execution of this Assignment and Acceptance, it will be
delivered to the Agent for acceptance and recording by the Agent.  The effective
date for this Assignment and Acceptance (the "Effective Date") shall be the date
of acceptance hereof by the Agent, unless otherwise specified on Schedule 1.

    5.   Upon such acceptance and recording by the Agent, as of the Effective
Date, (i) the Assignee shall be a party to the Loan Agreement and, to the extent
provided in this Assignment and Acceptance, have the rights and obligations of a
Bank thereunder and (ii) the Assignor shall, to the extent provided in this
Assignment and Acceptance, relinquish its rights and be released from its
obligations under the Loan Agreement.

    6.   Upon such acceptance and recording by the Agent, from and after the
Effective Date, the Agent shall make all payments under the Loan Agreement and
the Notes in respect of the interest assigned hereby (including, without
limitation, all payments of principal, interest and commitment fees with respect
thereto) to the Assignee.  The Assignor and Assignee shall make all appropriate
adjustments in payments under the Loan Agreement and the Notes for periods prior
to the Effective Date directly between themselves.

    7.   This Assignment and Acceptance shall be governed by, and construed in
accordance with, the laws of the State of Michigan.

    8.   This Assignment and Acceptance may be executed in any number of
counterparts and by different parties hereto in separate counterparts, each of
which when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.  Delivery of an executed
counterpart of Schedule 1 to this Assignment and Acceptance by telecopier shall
be effective as delivery of a manually executed counterpart of this Assignment
and Acceptance.
 
                                         -2-

<PAGE>

    IN WITNESS WHEREOF, the Assignor and the Assignee have caused Schedule 1 to
this Assignment and Acceptance to be executed by their officers thereunto duly
authorized as of the date specified thereon.


                                  [ASSIGNOR]


                                  BY:
                                     -------------------------------------

                                     ITS:
                                         ---------------------------------



                                  [ASSIGNEE]

                                  BY:
                                     -------------------------------------

                                     ITS:
                                         ---------------------------------



                                         -3-


<PAGE>

                                     EXHIBIT I
                                          
                                          
                       SUBROGATION AND CONTRIBUTION AGREEMENT


    This SUBROGATION AND CONTRIBUTION AGREEMENT (as amended or modified from
time to time, this "Agreement") is entered into as of February ___, 1997 by and
among Invacare Corporation (the "Company") and the Guarantors (as defined in the
Loan Agreement referred to below) and listed on the signature pages hereof (the
Company and the Guarantors collectively referred to as the  "Obligors" and
individually, an "Obligor") for the purpose of establishing the respective
rights and obligations of subrogation and contribution among the Obligors in
connection with the Loan Agreement.  Capitalized terms used herein and not
otherwise defined shall have the meanings set forth in the Loan Agreement.


                                       RECITALS

    A.   The Company has entered into a Loan Agreement dated as of the date
hereof with NBD Bank, as agent, and the Banks referred to therein (as amended or
modified from time to time, the "Loan Agreement"), pursuant to which the Banks
have made certain commitments, subject to the terms and conditions set forth
therein, to extend credit facilities to the Company, and, subject to certain
terms and conditions in the Loan Agreement, Subsidiaries of the Company (the
Company and such Subsidiaries being collectively referred to as the
"Borrowers"). 
 

    B.   Each Guarantor has entered into a Subsidiary Guaranty Agreement dated
as of the date hereof in favor of the Agent and the Banks pursuant to the Loan
Agreement (such Guaranty Agreement, as amended or modified from time to time,
the "Guaranty") pursuant to which the Guarantors have guaranteed all obligations
of the Borrowers to the Agent and the Banks.

    C.   As a result of the transactions contemplated by the Loan Agreement,
each Obligor will benefit, directly and indirectly, from the Obligations (as
defined below) and in consideration thereof desire to enter into this Agreement
to allocate such benefits among themselves and to provide a fair and equitable
arrangement to make contributions when any payment is made by an Obligor of the
Obligations (such payment being referred to herein as a "CONTRIBUTION").

                                      AGREEMENT

    In consideration of the foregoing premises and for other good and valuable
consideration, the receipt of which is hereby acknowledged, the Obligors hereby
agree as follows:

    1.   CONTRIBUTION.  In order to provide for just and equitable contribution
among the Obligors in the event any Contribution is made by an Obligor (a
"FUNDING OBLIGOR") under the Loan Agreement, that Funding Obligor shall be
entitled to a contribution from certain other 

<PAGE>

Obligors for all payments, damages and expenses incurred by that Funding Obligor
in discharging any of the Obligations, in the manner and to the extent set forth
in this Agreement.  The amount of any Contribution under this Agreement shall be
equal to the payment made by the Funding Obligor pursuant to the Loan Agreement
and shall be determined as of the date on which the such payment is made.  As
used in this Agreement, "Obligations" shall mean all unpaid principal and
interest on the Notes, all accrued and unpaid fees and all other obligations of
the Borrowers and the Guarantors to the Banks or any Bank or the Agent arising
under the Loan Documents, in each case whether now or hereafter owing.

     2.  BENEFIT AMOUNT DEFINED.  For purposes of this Agreements the "BENEFIT
AMOUNT" of any Obligor as of any date of determination shall be the net value of
the benefits to such Obligor and all of its Subsidiaries from extensions of
credit made by the Banks to the Borrowers under the Loan Agreement; PROVIDED,
that in determining the contribution liability of any Obligor which is a
Subsidiary to its direct or indirect parent corporation or of any Obligor to its
direct or indirect Subsidiary, the Benefit Amount of such Subsidiary and its
Subsidiaries, if any, shall be subtracted in determining the Benefit Amount of
the parent corporation.  Such benefits (collectively, the "BENEFITS") of any
Obligor shall include, without limitation, benefits of funds constituting
proceeds of Loans which are deposited into the account of a Borrower by the
Banks and which are in turn advanced or contributed by such Borrower to such
Obligor or any of its Subsidiaries and used for such Obligor's or any of its
Subsidiaries' purposes.  In the case of any proceeds of Loans or Benefits
advanced or contributed to, or received by, a Person (an "OWNED ENTITY") any of
the equity interests of which are owned directly or indirectly by an Obligor,
the Benefit Amount of such Obligor with respect thereto shall be that portion of
the net value of the benefits attributable to such proceeds of Loans or Benefits
equal to the direct or indirect percentage ownership of such Obligor in its
Owned Entity.

    3.   CONTRIBUTION OBLIGATION.  Each Obligor shall be liable to a Funding
Obligor in an amount equal to the greater of (A) the product of (i) a fraction
the numerator of which is the Benefit Amount of such Obligor, and the
denominator of which is the total amount of Obligations and (ii) the amount of
Obligations paid by such Funding Obligor and (B) the excess of the fair salable
value of the property of such Obligor over the total liabilities of such Obligor
(including the maximum amount reasonably expected to become due in respect of
contingent liabilities), as the case may be, determined as of the date on which
the payment by a Funding Obligor is deemed made for purposes of this Agreement
(giving effect to all payments made by other Funding Obligors as of much date in
a manner to maximize the amount of such contributions)

    4.   ALLOCATION.  In the event that at any time there exists more than one
Funding Obligor with respect to any Contribution (in any such case, the
"APPLICABLE CONTRIBUTION"), then payment from other Obligors pursuant to this
Agreement shall be allocated among such Funding Obligors in proportion to the
total amount of the Contribution made for or on account of the Borrowers by each
such Funding Obligor pursuant to the Applicable Contribution.  In the event that
at any time any Obligor pays an amount under this Agreement in excess of the
amount calculated pursuant to clause 

                                          2

<PAGE>

(A) of Section 3 hereof, that Obligor shall be deemed to be a Funding Obligor to
the extent of such excess and shall be entitled to contribution from the
Obligors in accordance with the provisions of this Agreement.

    5.   SUBROGATION.  If any Guarantor makes a payment in respect of the
Obligations it shall be subrogated to the rights of the payee against the
Borrowers with respect to such payment.  Any payments made hereunder by any
Borrower shall be credited against amounts payable by such Borrower pursuant to
any subrogation rights of the Guarantors which received the payments under this
Agreement.

    6.   REPRESENTATIONS AND WARRANTIES.  Each Obligor represents and warrants
to each other party hereto and to the Banks and the Agent that: 

         (a)  the execution, delivery and performance by such Obligor of this
Agreement are within such party's corporate powers, have been duly authorized by
all necessary corporate action, require no action by or in respect of, or filing
with, any governmental body, agency or official, and do not contravene, or
constitute a default under, any provision of applicable law or regulation or of
the articles of incorporation or other charter document or bylaws of such
Obligor, or of any agreement, judgment, injunction, order, decree or other
instrument binding upon such Obligor, or result in the creation or imposition of
any lien, security interest or other charge or encumbrance on any asset of such
Obligor; 

         (b)  this Agreement constitutes a legal, valid and binding agreement
of such Obligor, enforceable against such party in accordance with its terms. 

         (c)  the Obligors are engaged as an integrated group; that the
Guarantors have requested that the Banks continue to lend and make credit
available to the Borrowers for the purpose of financing the integrated
operations of the Borrowers and the Guarantors, with each Obligor expecting to
derive benefit, directly or indirectly, from the loans and other credit extended
by the Banks to the Borrowers, both in each Obligor's separate capacity and as a
member of the integrated group, inasmuch as the successful operation and
condition of each Obligor is dependent upon the continued successful performance
of the integrated group as a whole; and

         (c)  Each of the Obligors has determined that the delivery and
performance of this Agreement, the Guaranty and the other Loan Documents are
necessary and convenient to the conduct, promotion or attainment of the business
of such Obligor and is in furtherance of the corporate purposes of such Obligor.

    7.   SUBSIDIARY PAYMENT.  The amount of contribution payable under this
Agreement by any Obligor shall be reduced by the amount of any contribution paid
hereunder by a Subsidiary of such Obligor.


                                          3

<PAGE>

    8.   EQUITABLE ALLOCATION.  If as a result of any reorganization, 
recapitalization, or other corporate change any Obligor, or as a result of any
amendment, waiver or modification of the terms and conditions governing the Loan
Documents or the Obligations, or for any other reason, the contributions under
this Agreement become inequitable, then the parties hereto shall promptly modify
and amend this Agreement to provide for an equitable allocation of the
contributions.  Any of the foregoing modifications and amendments shall be in
writing and signed by all parties hereto.

    9.   ASSET OF PARTY TO WHICH CONTRIBUTION IS OWING.  The parties hereto
acknowledge that the rights to subrogation and contribution hereunder shall
constitute an asset in favor of the party to which such subrogation or
contribution is owing.

    10.  SUBORDINATION.  No payments payable by any Obligor pursuant to the
terms hereof or otherwise pursuant to any rights of subrogation, contribution,
reimbursement, indemnity or any similar rights arising under any Loan Document
or otherwise arising by law shall be paid until all Obligations are paid in full
in cash and all Commitments have expired or been terminated.  Nothing contained
in this Agreement shall affect the Obligations, the obligation of the Borrowers
to pay the Obligations, the absolute and unconditional obligations of the
Guarantors to jointly and severally pay the Obligations pursuant to the Guaranty
or any of the other obligations of any party hereto to the Agent or any Bank
under the Loan Agreement, the Guaranty or any other Loan Document.

    11.  SUCCESSORS AND ASSIGNS; AMENDMENTS.  This Agreement shall be binding
upon each party hereto and its respective successors and assigns and shall inure
to the benefit of the parties hereto and their respective successors and
assigns, and in the event of any transfer or assignment of rights by an Obligor,
the rights and privileges herein conferred upon that Obligor shall automatically
extend to and be vested in such transferee or assignee, all subject to the terms
and condition hereof.  This Agreement shall not be amended without the prior
written consent of the Required Banks.  This Agreement is for the benefit of the
parties hereto and for the benefit of the Agent and the Banks and may be
enforced by any one, or more, or all of them in accordance with the terms
hereof.

    12.  TERMINATION. This Agreement shall remain in effect and shall not be
terminated until all Obligations are paid in full in cash, such payment is not
subject to any possibility of revocation or rescission and all Commitments have
expired or been terminated.

    13.  CHOICE OF LAW.  THIS AGREEMENT AND ANY INSTRUMENT OR AGREEMENT
REQUIRED HEREUNDER SHALL BE DEEMED TO BE MADE UNDER, SHALL BE GOVERNED BY, AND
SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
MICHIGAN WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF LAWS.

    14.  COUNTERPARTS.  This Agreement, and any modifications or amendments
hereto, may be executed in any number of counterparts, each of which when so
executed and delivered shall 

                                          4

<PAGE>

constitute an original for all purposes, but all such counterparts taken
together shall constitute one and the same instrument.

    15.  EFFECTIVENESS.  This Agreement shall become effective as to any party
upon the execution hereof by such party and delivery of its executed counterpart
to the Agent.
 

                                          5

<PAGE>

    IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as of the day and year first written above.

CANYON PRODUCTS CORPORATION       INVACARE CREDIT CORPORATION

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------
INVACARE INTERNATIONAL 
CORPORATION                       INVACARE HOLDINGS CORPORATION

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------

MOBILITE CORPORATION              INVATECTION INSURANCE
                                  COMPANY, INC.

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------

INVACARE TRADING COMPANY, INC.         INVACARE (DEUTSCHLAND) GMBH

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------

POIRIER GROUPE INVACARE           INVACARE CANADA INC.

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------

QUANTRIX CONSULTANTS LIMITED      FROHOCK-STEWART INC.

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------

MEDICAL EQUIPMENT REPAIR               PRODUCTION RESEARCH

                                          6
<PAGE>

SERVICES INC.                     CORPORATION

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------

I.H.H. CORP.                           INVACARE CORPORATION

By:                                    By:
   ----------------------------           ----------------------------
    Its:                                    Its:
        ----------------------                   ---------------------


                                          7




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