RESPIRONICS INC
S-3, 1996-02-22
ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES
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<PAGE>
 
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 22, 1996
                                                          REGISTRATION NO. 333-
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                               ---------------
                                   FORM S-3
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                               ---------------
                               RESPIRONICS, INC.
     (Exact name of registrant as specified in its governing instruments)
 
              DELAWARE                              25-1304989
   (State or other jurisdiction of               (I.R.S. Employer
   incorporation or organization)               Identification No.)
 
 
                                                  (412) 733-0200
      1001 MURRY RIDGE DRIVE                    (Telephone number)
      MURRYSVILLE, PA 15668
 (Address of Principal Executive
            Offices)
 
                               DENNIS S. METENY
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                               RESPIRONICS, INC.
                 1001 MURRY RIDGE DRIVE, MURRYSVILLE, PA 15668
                                (412) 733-0202
           (Name, address and telephone number of agent for service)
                               ---------------
                                With copies to:
 
    JAMES H. HARDIE                              KEITH F. HIGGINS
REED SMITH SHAW & MCCLAY                           ROPES & GRAY
    435 SIXTH AVENUE                          ONE INTERNATIONAL PLACE 
 PITTSBURGH, PA 15219                            BOSTON, MA 02110
   (412) 288-3176                                 (617) 951-7000
                               ---------------
 
  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after this Registration Statement becomes effective.
 
  If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the
following box. [_]
 
  If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box. [_]
 
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]
 
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]
 
  If delivery of the prospectus is expected to be made pursuant at Rule 434,
please check the following box. [_]
 
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                  NUMBER OF            PROPOSED           PROPOSED       AMOUNT OF
    TITLE OF SECURITIES          SHARES TO BE      MAXIMUM OFFERING  MAXIMUM AGGREGATE  REGISTRATION
     TO BE REGISTERED            REGISTERED        PRICE PER SHARE*   OFFERING PRICE*       FEE
<S>                          <C>                  <C>                <C>                <C>
- ----------------------------------------------------------------------------------------------------
Common Stock (par value
 $0.01 per share)..........       3,484,500             $21.00          $73,174,500      $25,233.00
</TABLE>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
* Estimated solely for purposes of calculating the registration fee and
  calculated, pursuant to Rule 457(c), on the basis of the average of the high
  and low sale prices for the registrant's Common Stock, as reported on the
  National Market System of the National Association of Securities Dealers,
  Inc. for February 20, 1996, as quoted in The Wall Street Journal, of $21.00.
                               ---------------
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(A), MAY DETERMINE.
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BY ANY SALE OF THESE
SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF
ANY SUCH STATE.
                                                       SUBJECT TO COMPLETION 
                                                           FEBRUARY   , 1996
 
                                3,030,000 Shares
 
                          [LOGO of Respironics, Inc.]
 
                                  Common Stock
                                   --------
 
  Of the 3,030,000 shares of Common Stock offered hereby, 2,000,000 shares are
being sold by Respironics, Inc. ("Respironics" or the "Company") and 1,030,000
shares are being sold by the Selling Stockholders. See "Principal and Selling
Stockholders." The Company will not receive any of the proceeds from the shares
sold by the Selling Stockholders. The Common Stock is traded on the Nasdaq
National Market under the symbol "RESP." On February 20, 1996, the last
reported sale price of the Common Stock was $20.88 per share. See "Price Range
of Common Stock."
                                   --------
 
  FOR A DISCUSSION OF CERTAIN FACTORS WHICH SHOULD BE CONSIDERED BY POTENTIAL
INVESTORS, SEE "RISK FACTORS" BEGINNING ON PAGE 7.
                                   --------
 
THESE SECURITIES  HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE  SECURITIES AND
 EXCHANGE  COMMISSION  OR   ANY  STATE  SECURITIES  COMMISSION   NOR  HAS  THE
  SECURITIES  AND EXCHANGE  COMMISSION  OR  ANY  STATE SECURITIES  COMMISSION
   PASSED  UPON   THE  ACCURACY   OR  ADEQUACY   OF  THIS   PROSPECTUS.   ANY
   REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
================================================================================
<TABLE>
<CAPTION> 
 
                                 PRICE       UNDERWRITING      PROCEEDS       PROCEEDS TO
                                  TO         DISCOUNTS AND        TO            SELLING
                                PUBLIC        COMMISSIONS     COMPANY(1)     STOCKHOLDERS
<C>                            <C>           <C>              <C>            <C>
- -------------------------------------------------------------------------------------------
Per Share..................      $               $               $               $
- -------------------------------------------------------------------------------------------
Total(2)...................      $               $               $               $
</TABLE>
===============================================================================
 
(1) Before deducting expenses of the offering estimated at $400,000 payable by
    the Company.
(2) The Company and a Selling Stockholder have granted the Underwriters a 30-
    day option to purchase up to 454,500 additional shares of Common Stock
    solely to cover over-allotments, if any. To the extent that the option is
    exercised, the Underwriters will offer the additional shares at the Price
    to Public shown above. If the option is exercised in full, the total Price
    to Public, Underwriting Discounts and Commissions, Proceeds to Company and
    Proceeds to Selling Stockholders will be $   , $    , $    and $   ,
    respectively. See "Underwriting."
                                   --------
 
  The shares of Common Stock are offered by the several Underwriters, subject
to prior sale, when, as and if delivered to and accepted by them, and subject
to the right of the Underwriters to reject any order in whole or in part. It is
expected that delivery of the shares of Common Stock will be made at the
offices of Alex. Brown & Sons Incorporated, Baltimore, Maryland, on or about
    , 1996.
 
  Alex. Brown & Sons
     INCORPORATED
                                Cowen & Company
                                                                   Parker/Hunter
                                                                    INCORPORATED
 
                THE DATE OF THIS PROSPECTUS IS           , 1996.
<PAGE>
 
                            OBSTRUCTIVE SLEEP APNEA
 
Over 18 million people in the United States have symptoms which are consistent 
with a diagnosis of some degree of obstructive sleep apnea (OSA). Respironics
offers a broad array of products for OSA therapy and diagnosis.
  
   [PHOTO]                       [PHOTO]                          [PHOTO]  
REMstar Choice               Aria CPAP System               Cricket Oximeter and
 CPAP System                                                  HMS 5000 Monitor

 
                       NON-INVASIVE VENTILATORY SUPPORT
 
Non-invasive ventilatory support is an emerging segment of the total 
ventilation market. Respironics introduced the first non-invasive bi-level 
ventilatory support system that compensates for mask leaks.
 
      [PHOTO]                                                     [PHOTO]
     BiPAP S/T                                                 BiPAP Hospital   
Ventilatory Support                                          Ventilatory Support
      System                                                       System     
 
 
                               PATIENT MASKS AND
                                 RESUSCITATION
                               
Respironics manufactures a variety of patient masks and resuscitation products 
designed to enhance patient comfort and compliance in the OSA and ventilatory 
support markets and to provide respiratory therapy in hospital and emergency
settings.
 
      [PHOTO]                                                 [PHOTO]
     GEL Mask                                             BagEasy Disposable
                                                         Manual Resuscitator
 
                          [LOGO OF RESPIRONICS INC.]
                               RESPIRONICS INC.
 
Respironics' mission is to be first and best at solving problems in the 
cardio-pulmonary marketplace by providing its worldwide customers with the 
highest quality products and services.
                                 

<PAGE>
 
                             AVAILABLE INFORMATION
 
  The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith files reports, proxy statements and other information with the
Securities and Exchange Commission (the "Commission"). Such reports, proxy
statements and other information may be inspected and copied at the public
reference facilities of the Commission at Room 1024, 450 Fifth Street, N.W.,
Washington, D.C. 20549; and at the Commission's regional office at Citicorp
Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661 and Seven
World Trade Center, Suite 1300, New York, New York 10048. Copies of such
material can be obtained from the Public Reference Section of the Commission
at 450 Fifth Street, N.W., Washington, D.C. 20549 at prescribed rates.
Reports, proxy statements and other information concerning the Company may be
inspected at the National Association of Securities Dealers, Inc. at 1735 K
Street, N.W., Washington, DC 20006.
 
                            ADDITIONAL INFORMATION
 
  The Company has filed with the Commission a Registration Statement on Form
S-3 (together with all amendments and exhibits, the "Registration Statement")
under the Securities Act of 1933, as amended (the "Securities Act"), with
respect to the Common Stock to which this Prospectus relates. This Prospectus
does not contain all the information set forth in the Registration Statement,
certain portions of which have been omitted as permitted by the rules and
regulations of the Commission. For further information with respect to the
Company and the Common Stock, reference is made to the Registration Statement.
The Registration Statement may be inspected by anyone without charge at the
principal office of the Commission in Washington, D.C., and copies of all or
part of it may be obtained from the Commission upon payment of the prescribed
fees.
 
  Except as otherwise specified, all information in this Prospectus assumes no
exercise of the Underwriters' over-allotment option. The Company's fiscal year
ends on June 30 of each year. Unless the context indicates otherwise,
reference in this Prospectus to "fiscal year" refers to the twelve-month
period ending on June 30 of the year indicated. On each of March 9, 1992 and
March 17, 1995 the Company effected a two-for-one stock split in the form of a
stock distribution of one additional share of Common Stock for each share held
of record on February 24, 1992 and March 3, 1995, respectively. All references
to number of shares of Common Stock, and all information with respect thereto
(including per share information in the financial information herein) have
been adjusted to reflect the stock splits on a retroactive basis. See
"Underwriting." Respironics(R), REMstar(R), BiPAP(R), BagEasy(R), Circle
Seal(R) and SealEasy(R) are registered trademarks of the Company. Great
Performers(TM), Monarch Mini Mask(TM), GEL Mask(TM), Cricket(TM), Aria(TM),
Virtuoso(TM), Vitalog(TM) and HMS 5000(TM) are trademarks of the Company.
 
  This Prospectus contains forward-looking statements which involve risks and
uncertainties. The Company's actual results may differ significantly from the
results discussed in the forward-looking statements. Factors that might cause
such a difference include, but are not limited to, those discussed in "Risk
Factors."
 
  IN CONNECTION WITH THE OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMPANY'S
COMMON STOCK AT A LEVEL ABOVE THAT WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN
MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
  IN CONNECTION WITH THIS OFFERING, CERTAIN UNDERWRITERS AND OTHER SELLING
GROUP MEMBERS MAY ENGAGE IN PASSIVE MARKET MAKING TRANSACTIONS IN THE
COMPANY'S COMMON STOCK ON THE NASDAQ NATIONAL MARKET IN ACCORDANCE WITH RULE
10B-6A UNDER THE SECURITIES EXCHANGE ACT OF 1934. SEE "UNDERWRITING."
 
                                       2
<PAGE>
 
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety by the more detailed
information, including "Risk Factors" and "Consolidated Financial Statements"
(including the notes thereto), appearing elsewhere in this Prospectus.
 
                                  THE COMPANY
 
  Respironics is a leading developer, manufacturer and marketer of medical
devices used for the treatment of patients suffering from respiratory
disorders. The Company's products are designed to reduce costs while improving
the effectiveness of patient care and are used primarily in the home and
hospitals, as well as emergency medical settings and alternative care
facilities. The Company's primary product lines are: (i) continuous positive
airway pressure ("CPAP") devices and bi-level positive airway pressure
("BiPAP") devices for the treatment of obstructive sleep apnea ("OSA"), a
serious disorder characterized by the repeated cessation of breathing during
sleep; (ii) bi-level non-invasive ventilatory support devices; (iii) patient
mask products; and (iv) single-use resuscitation products. Respironics markets
its products through a sales organization consisting of approximately 90 direct
and independent sales representatives, who sell to a network of over 2,500
medical product dealers. The Company's sales have grown from $36.0 million in
fiscal year 1991 to $99.5 million in fiscal year 1995 and are currently
comprised of 68% equipment and 32% consumable and single-use products. With
approximately 85% of its sales currently reaching the home care market,
Respironics believes that it is well-positioned to take advantage of the
growing preference for in-home treatment of patients suffering from respiratory
disorders.
 
  The Company believes it is the U.S. market share leader for both of its
primary product lines, OSA treatment devices and non-invasive ventilatory
support products. Devices for the treatment of OSA are estimated to constitute
a $100 million annual U.S. market that is growing at 20 to 25% per year. Growth
in the OSA market stems from several factors, including recognition of the
serious medical implications of OSA and increasing diagnosis and treatment of
the disorder. In a comprehensive study published in the April 1993 New England
Journal of Medicine, OSA was estimated to affect 4% of men and 2% of women in
the middle-aged work force, and the Company believes that the majority of these
cases remain undiagnosed. The total U.S. ventilator market is estimated to be
$250 million annually. Non-invasive ventilatory support is an emerging sector
of this market, consisting primarily of products for individuals who require
ventilatory assistance but who are not dependent on a ventilator for continuous
life support. Respironics believes that its non-invasive ventilatory support
product line represents a technological advance over traditional mechanical
ventilators, which generally require intubation of patients and thus have the
potential for adverse side effects such as infection.
 
  Respironics is a market-driven company that has established a record of
innovation in respiratory care. In 1981, the Company introduced the first
commercially available single-use air-filled cushion anesthesia mask as a cost-
effective alternative to reusable anesthesia masks. In 1985, the Company
introduced the first commercially available CPAP product designed to treat OSA,
affording patients an alternative to surgery. In 1989, the Company introduced
the BiPAP Ventilatory Support System, a non-invasive bi-level pressure support
device. In March 1995, the Company introduced a new version of its BagEasy
manual resuscitator. The Company recently began introducing its next-generation
family of OSA products, called the "Great Performers" product line, with the
first international shipments commencing in July 1995. In February 1996, the
Company received clearance from the U.S. Food and Drug Administration (the
"FDA") to market a new product in this line, the Aria CPAP system, and expects
to begin domestic shipments of this device in spring 1996. This new family of
products also includes Virtuoso, a CPAP device that utilizes
 
                                       3
<PAGE>
 
innovative technology to monitor the patient's airway and to continuously
adjust output automatically in order to deliver the appropriate pressure. The
Company currently is developing its next-generation family of ventilatory
support devices which it expects to introduce in international markets in
summer 1996.
 
  In fiscal year 1995, the Company completed the acquisition of Vitalog
Monitoring, Inc. ("Vitalog"), a developer, manufacturer and marketer of
monitoring and diagnostic devices for sleep disorders. The Vitalog acquisition
is part of a strategic effort by Respironics to use the market for devices
related to the diagnosis and monitoring of sleep and other respiratory-related
disorders to drive the therapeutic markets for these disorders.
 
  Respironics' objective is to be the market leader in innovative devices for
the treatment of respiratory disorders. The Company's strategy is to: (i)
continue to commit significant resources to the development of innovative
products; (ii) expand the breadth of its product lines to address the full
range of respiratory disorders; (iii) expand its international distribution and
manufacturing capabilities; (iv) pursue acquisitions of complementary
technologies, products and businesses; (v) enhance operational quality and
efficiency through process excellence; and (vi) develop partnering
relationships with customers.
 
  Respironics is a Delaware corporation. The Company's executive offices are
located at 1001 Murry Ridge Drive, Murrysville, Pennsylvania 15668. The
Company's telephone number is (412) 733-0200.
 
                                  THE OFFERING
 
<TABLE>
 <S>                                               <C>
 Common Stock offered by the Company.............. 2,000,000 shares
 Common Stock offered by the Selling Stockholders. 1,030,000 shares
 Common Stock outstanding after the offering (1).. 18,851,860 shares
 Use of Proceeds.................................. Provide working capital for
                                                   general corporate purposes,
                                                   including the acquisition of
                                                   similar or related
                                                   businesses and the
                                                   acquisition of marketing,
                                                   manufacturing or other
                                                   rights associated with
                                                   products or technologies
                                                   which would complement the
                                                   Company's products.
 Nasdaq National Market Symbol.................... RESP
</TABLE>
- --------
(1) Does not include 1,546,626 shares of Common Stock reserved for issuance
    pursuant to outstanding options granted at a weighted average price per
    share of $5.90.
 
                                       4
<PAGE>
 
                             SUMMARY FINANCIAL DATA
       (AMOUNTS IN THOUSANDS EXCEPT PER SHARE AND OTHER STATISTICAL DATA)
<TABLE>
<CAPTION>
                                                                             SIX MONTHS ENDED
                                    YEAR ENDED JUNE 30                          DECEMBER 31
                          ----------------------------------------------     ---------------------
                           1991     1992     1993     1994        1995         1994         1995
                          -------  -------  -------  -------     -------     --------     --------
                                                                                (UNAUDITED)
INCOME STATEMENT DATA:
<S>                       <C>      <C>      <C>      <C>         <C>         <C>          <C>
 Net sales..............  $36,031  $48,976  $69,286  $78,171     $99,450      $45,538      $56,916
 Nonrecurring charges...      -0-      -0-      -0-    7,086(1)      -0-          -0-          -0-
 Income before income
  taxes.................    5,553    8,059   11,096    6,816      18,535        8,121       11,030
 Net income.............    3,771    5,363    7,379    4,741(1)   11,677        5,116        6,728
 Earnings per share.....  $  0.26  $  0.31  $  0.43  $  0.27(1)  $  0.67     $   0.29     $   0.38
 Weighted average shares
  of Common  Stock
  outstanding and
  equivalents...........   14,631   17,057   17,319   17,281      17,532       17,346       17,730
OTHER STATISTICAL DATA:
 Sales growth versus
  prior period..........       57%      36%      41%      13%(2)      27%(2)       24%(2)       25%
 Sales by product line:
  Obstructive Sleep
   Apnea................       55%      55%      57%      64%         67%          68%          68%
  Non-invasive
   Ventilatory Support..       18       20       23       27          26           26           26
  Patient Masks.........       22       22       18       16          15           15           16
  Resuscitation.........       14       13       11        4           2            2            2
  Product Line                 (9)     (10)      (9)     (11)        (10)         (11)         (12)
   Transfers (3)........     ----     ----     ----     ----        ----         ----         ----
                              100%     100%     100%     100%        100%         100%         100%
                              ===      ===      ===      ===         ===          ===          ===
 International sales as
  a percentage
  of net sales..........       14%      19%      18%      20%         20%          20%          23%
 Gross margin...........       51%      52%      54%      55%         57%          57%          56%
 Selling, general and
  administrative
  expenses as a
  percentage of net
  sales.................       31%      32%      33%      32%         32%          33%          31%
 Research and
  development expenses
  as a percentage of net
  sales.................        5%       5%       5%       6%          7%           7%           7%
 Net margin excluding
  the impact of
  nonrecurring charges..       10%      11%      11%      12%(4)      12%          11%          12%
 Earnings per share
  growth versus  prior
  year excluding the
  impact of nonrecurring
  charges...............       73%      19%      39%      21%(5)      29%(5)       16%(5)       31%
</TABLE>
 
<TABLE>
<CAPTION>
                                                            DECEMBER 31, 1995
                                                         -----------------------
                                                         ACTUAL  AS ADJUSTED (6)
                                                         ------- ---------------
                                                               (UNAUDITED)
BALANCE SHEET DATA:
<S>                                                      <C>     <C>
 Working capital........................................ $44,146    $ 83,314
 Total assets...........................................  83,952     123,120
 Total long-term obligations............................   5,242       5,242
 Total shareholders' equity.............................  65,550     104,718
</TABLE>
- --------
(1) In the first quarter of fiscal year 1994 and the fourth quarter of fiscal
    year 1994, the Company recorded nonrecurring charges of $1,966 and $5,120,
    respectively. Excluding these charges, net income and earnings per share
    would have been $9,040 and $0.52, respectively, for fiscal year 1994.
(2) Excluding the impact of the discontinuance of the BagEasy product line,
    sales growth would have been 20% for fiscal year 1994, 30% for fiscal year
    1995 and 29% for the six months ended December 31, 1994.
(3) Product line transfers include sales of certain of the Company's patient
    mask products which are accessories for OSA products, non-invasive
    ventilatory support products, and resuscitation products.
(4) Including the impact of the nonrecurring charges, net margin was 6% for
    fiscal year 1994.
(5) Including the impact of the nonrecurring charges, earnings per share growth
    was (37%) for fiscal year 1994, 148% for fiscal year 1995 and 71% for the
    six months ended December 31, 1994.
(6) Adjusted to give effect to the sale of 2,000,000 shares of Common Stock by
    the Company assuming a public offering price of $20.88 per share and after
    deducting estimated underwriting discounts and offering expenses payable by
    the Company.
 
                                       5
<PAGE>
 
                                 RISK FACTORS
 
  Government Regulation. The development, testing, manufacture and marketing
of the Company's products are subject to extensive regulation and periodic
inspections, principally by the FDA and by corresponding foreign agencies. The
testing for and preparation of required applications can be expensive, and the
subsequent FDA review can be lengthy and uncertain. Moreover, clearance or
approval, if granted, can include significant limitations on the indicated
uses for which a product may be marketed. Failure to comply with applicable
FDA regulations can result in fines, civil penalties, suspensions or
revocation of clearances or approvals, recalls or product seizures, operating
restrictions or criminal penalties. Delays in receipt of, or failure to
receive, clearances or approvals for products for which such clearances or
approvals have not yet been obtained would adversely affect the marketing of
such products and could adversely affect the Company's results of operations
and financial condition. Also, the regulations under the FDA are subject to
change from time to time. For example, a change in the regulations governing
Medical Device Reports ("MDRs") that will impose additional recordkeeping and
reporting requirements on device manufacturers is expected to become effective
in April 1996. This and future changes in FDA regulations could have a
material adverse effect on the Company's operations. See "Business--Regulatory
Matters."
 
  Patent Litigation. In January 1995, ResCare Limited, an Australian
corporation ("ResCare"), instituted litigation alleging that the Company's
basic CPAP product, its nasal mask and an additional feature of the CPAP
product infringe three United States patents owned by or licensed to ResCare.
It is the Company's belief, based upon its investigation, discovery
proceedings conducted in the suit to date and discussions with its counsel,
that the ResCare patents are invalid or unenforceable, and that, even if the
ResCare patents are valid and enforceable, the Company's products do not
infringe the patents. However, there can be no assurance that the ResCare
patents will be declared invalid or unenforceable or that the Company's
products will be found not to infringe the ResCare patents. Because the
products that are the subject of the action represent a significant portion of
the Company's sales, an adverse determination could have a material adverse
effect on the Company's results of operations and financial condition. See
"Business--Legal Proceedings--Patent Litigation."
 
  FDA Warning Letter. Following an inspection of the Company's Murrysville,
Pennsylvania facility completed in August 1994, the FDA issued a "warning
letter" in December 1994 in which it took the position that the Company must
submit additional "510(k) premarket notifications" (under which a product is
cleared for marketing in the U.S. based on the fact that it is substantially
equivalent to another product already being legally marketed) to cover certain
technical features of the Company's BiPAP product and to market its BiPAP
product for ventilatory uses other than the treatment of OSA in adults. The
Company believes that it is in substantial compliance with FDA requirements
relating to its products and that the existing 510(k) clearances for BiPAP
cover the technical features cited in the warning letter and encompass the
marketing of BiPAP products for ventilatory uses in addition to the treatment
of OSA in adults. The Company nevertheless has elected to file 510(k)
submissions for indications in addition to adult OSA and for the technical
features cited in the FDA warning letter. Although there has been no
interruption in the Company's business in the 14 months since receipt of the
warning letter, there can be no assurance that the FDA will not take
enforcement action with respect to the Company's prior or continued marketing
of the BiPAP products or that FDA clearances for the additional 510(k)
premarket notifications that the Company has submitted will be cleared by the
FDA. Sales of BiPAP and related accessories for ventilatory support
applications accounted for approximately 26% of the Company's sales for the
six-month period ended December 31, 1995. See "Business--Regulatory Matters."
 
  Industry Dependence on Third Party Reimbursement. The cost of a significant
portion of medical care in the United States is funded by government and
private insurance programs, such as Medicare, Medicaid and corporate health
insurance programs including health maintenance organizations and managed care
organizations. The Company's future results of operations and financial
condition could be negatively affected by adverse changes made in the
reimbursement policies for medical products under these insurance programs. If
such changes were to occur, the ability of the Company's customers (medical
 
                                       6
<PAGE>
 
product distributors and dealers) to obtain adequate reimbursement for the
resale or rental of the Company's products could be affected. In recent years,
limitations imposed on the levels of reimbursement by both government and
private insurance programs have become more prevalent. See "Business--Third
Party Reimbursement."
 
  Industry Consolidation and Customer Concentration. The past several years
have seen a trend toward consolidation in the health care industry generally
and in the Company's customer base in particular. In August 1995, the
Company's two largest customers merged to form a company that in the first six
months of fiscal 1996 accounted for 17% of the Company's revenues, compared
with a combined total of 18% for such two customers in the same period in the
prior fiscal year. Industry consolidation, as well as buying practices by
other large customers, has contributed to a decrease in the average selling
price of certain of the Company's products and correspondingly has placed
pressure on the Company's gross margins. The Company expects this trend to
continue. If the Company is unable to control operating expenses to counteract
the impact of downward pricing, its operating results would be adversely
affected. In addition, a decision by any of the Company's large customers to
significantly reduce its purchases could have a material adverse effect on the
Company's results of operations or financial condition. See "Business--
Customers."
 
  Competition. The Company competes on a product by product basis with various
other companies, some of which may have significantly greater financial and
marketing resources or broader product lines than the Company. Other
manufacturers, including other larger and more experienced manufacturers of
home health care products, have entered the OSA market, and the Company
expects that competition in this market will continue to increase. See
"Business--Competition."
 
  Foreign Operations and Sales. The Company manufactures certain of its
products, principally plastic single-use products, in Hong Kong and in the
Peoples Republic of China. Operations in these locations are subject to the
risks normally associated with foreign operations including, but not limited
to, possible changes in export or import restrictions and the modification or
introduction of other governmental policies with potentially adverse effects.
The Company cannot anticipate the effect on it of the change of sovereignty of
Hong Kong scheduled for 1997. An extended interruption in its foreign
manufacturing operations could have a material adverse effect on the Company's
business. In addition, foreign sales account for approximately 23% of the
Company's revenues. Although substantially all such sales currently are
denominated and collected in U.S. dollars, foreign currency fluctuations could
impact the level of foreign sales. See "Business--Manufacturing."
 
                                       7
<PAGE>
 
                          PRICE RANGE OF COMMON STOCK
 
  The Common Stock is quoted on the Nasdaq National Market. The table below
sets forth, for the quarters indicated, the high and low sales prices per
share of the Common Stock as reported on the Nasdaq National Market.
 
<TABLE>
<CAPTION>
                                                                    HIGH   LOW
                                                                    ----   ---
<S>                                                                <C>    <C>
Fiscal Year ended June 30, 1994
  First Quarter................................................... $11.63 $ 8.88
  Second Quarter..................................................  10.00   7.88
  Third Quarter...................................................  12.00   9.13
  Fourth Quarter..................................................  10.63   8.38
Fiscal Year ended June 30, 1995
  First Quarter................................................... $10.63 $ 8.00
  Second Quarter..................................................  12.25   9.75
  Third Quarter...................................................  16.88  11.63
  Fourth Quarter..................................................  17.00  10.50
Fiscal Year ended June 30, 1996
  First Quarter................................................... $19.75 $13.75
  Second Quarter..................................................  22.25  17.00
  Third Quarter (through February 20, 1996).......................  24.75  17.00
</TABLE>
 
  On February 20, 1996, the last reported sale price of the Common Stock as
reported on the Nasdaq National Market was $20.88 per share. On February 20,
1996, there were approximately 1,400 holders of record of the Common Stock.
 
                                USE OF PROCEEDS
 
  The net proceeds to the Company from the sale of the 2,000,000 shares of
Common Stock offered hereby by the Company are estimated to be $39.2 million
($46.7 million if the Underwriters' over-allotment option is exercised in
full), assuming a public offering price of $20.88 per share and after
deducting estimated underwriting discounts and offering expenses payable by
the Company. The Company will not receive any proceeds from the sale of the
1,030,000 shares of Common Stock offered hereby by the Selling Stockholders.
 
  The proceeds received by the Company will be added to the Company's working
capital to be used for general corporate purposes, including the acquisition
of similar or related businesses and the acquisition of marketing,
manufacturing or other rights associated with products or technologies which
would complement the Company's products. The proceeds will enable the Company
to take advantage of opportunities which it foresees may develop in these
areas. The Company does not presently have any understandings or agreements
with respect to the acquisition of additional businesses, products or rights.
 
  Pending their use, the proceeds received by the Company will be invested in
short-term, interest bearing money market funds, commercial bank certificates
of deposit or similar investments.
 
                                DIVIDEND POLICY
 
  Payment of cash dividends by the Company is subject to the discretion of the
Board of Directors. The current policy of the Board of Directors is to
reinvest all earnings in the development and expansion of the Company's
business. The Company has never paid a cash dividend on its Common Stock, and
its Board of Directors has no present intention of paying cash dividends.
 
                                       8
<PAGE>
 
                                CAPITALIZATION
 
  The following table sets forth the capitalization of the Company at December
31, 1995 and as adjusted to give effect to the sale of 2,000,000 shares of
Common Stock by the Company at an assumed public offering price of $20.88 per
share, after deducting the estimated underwriting discounts and offering
expenses payable by the Company. This table should be read in conjunction with
the Company's Consolidated Financial Statements and the Notes thereto that
appear elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                           DECEMBER 31, 1995
                                                        ------------------------
                                                         ACTUAL     AS ADJUSTED
                                                        ---------- -------------
                                                        (DOLLARS IN THOUSANDS)
<S>                                                     <C>        <C>
Long-Term Obligations (less current portion)........... $    5,242  $     5,242
                                                        ==========  ===========
Shareholders' Equity:
 Common Stock, par value $.01 per share, authorized
  40,000,000 shares; issued and outstanding 16,851,860
  shares at December 31, 1995, and 18,851,860 shares 
  at December 31, 1995 (as adjusted) (1)............... $      169  $       189
 Additional Capital....................................     19,706       58,854
 Retained Earnings.....................................     45,675       45,675
                                                        ----------  -----------
Total Shareholders' Equity.............................     65,550      104,718
                                                        ----------  -----------
Total Capitalization................................... $   70,792  $   109,960
                                                        ==========  ===========
</TABLE>
- --------
(1) Does not include 1,546,626 shares of Common Stock reserved for issuance
    under stock options outstanding at December 31, 1995 and 862,688 shares of
    Common Stock reserved for future grant under the Company's stock option
    plans.
 
                                       9
<PAGE>
 
                            SELECTED FINANCIAL DATA
 
  The selected consolidated financial data presented below for each of the
five years ended June 30, 1995, are derived from the Company's consolidated
financial statements which have been audited by Ernst & Young LLP, independent
auditors. The selected consolidated financial data as of December 31, 1995 and
for the six months ended December 31, 1994 and 1995 have been derived from the
Company's unaudited consolidated financial statements and include all
adjustments, consisting only of normal recurring adjustments, necessary for a
fair presentation of the financial condition and results of operations for
these periods. Operating results for the six months ended December 31, 1995
are not necessarily indicative of the results expected for the entire year.
This data should be read in conjunction with the Consolidated Financial
Statements and Notes thereto and "Management's Discussion and Analysis of
Results of Operations and Financial Condition" appearing elsewhere in this
Prospectus.
 
<TABLE>
<CAPTION>
                   (AMOUNTS IN THOUSANDS EXCEPT PER SHARE DATA)
                                                                         SIX MONTHS ENDED
                                    YEAR ENDED JUNE 30                      DECEMBER 31
                          ---------------------------------------------  ------------------
                           1991     1992     1993     1994       1995      1994      1995
                          -------  -------  -------  -------    -------  --------  --------
INCOME STATEMENT DATA:                                                      (UNAUDITED)
<S>                       <C>      <C>      <C>      <C>        <C>      <C>       <C>
Net sales...............  $36,031  $48,976  $69,286  $78,171    $99,450  $ 45,538  $ 56,916
Cost of goods sold......   17,554   23,360   32,114   34,830     43,077    19,660    24,896
                          -------  -------  -------  -------    -------  --------  --------
                           18,477   25,616   37,172   43,341     56,373    25,878    32,020
General & administrative
 expenses...............    5,295    6,538   10,581   10,028     14,050     6,812     7,848
Sales, marketing &
 commission expenses....    6,045    9,211   12,313   15,069     17,696     8,299     9,513
Research & development
 expenses...............    1,646    2,311    3,556    4,794      7,077     3,060     4,061
Nonrecurring charges....      -0-      -0-      -0-    7,086(1)     -0-       -0-       -0-
Interest expense........      300      201      176      171        194        96       101
Other income............     (362)    (704)    (550)    (623)    (1,179)     (510)     (533)
                          -------  -------  -------  -------    -------  --------  --------
                           12,924   17,557   26,076   36,525     37,838    17,757    20,990
                          -------  -------  -------  -------    -------  --------  --------
  Income before income
    taxes...............    5,553    8,059   11,096    6,816     18,535     8,121    11,030
Income taxes............    1,782    2,696    3,717    2,075      6,858     3,005     4,302
                          -------  -------  -------  -------    -------  --------  --------
  Net income............  $ 3,771  $ 5,363  $ 7,379  $ 4,741(1) $11,677  $  5,116  $  6,728
                          =======  =======  =======  =======    =======  ========  ========
Earnings per share......  $  0.26  $  0.31  $  0.43  $  0.27(1) $  0.67  $   0.29  $   0.38
                          =======  =======  =======  =======    =======  ========  ========
Weighted average shares
 of Common Stock
 outstanding and
 equivalents............   14,631   17,057   17,319   17,281     17,532    17,346    17,730
</TABLE>
<TABLE>
<CAPTION>
                                         JUNE 30
                         ---------------------------------------     DECEMBER 31
                          1991    1992    1993    1994    1995          1995
                         ------- ------- ------- ------- -------     -----------
BALANCE SHEET DATA:                                                  (UNAUDITED)
<S>                      <C>     <C>     <C>     <C>     <C>         <C>
Working capital......... $16,086 $19,979 $25,172 $31,032 $39,413       $44,146
Total assets............  36,140  43,462  54,331  58,917  78,039        83,952
Total long-term
 obligations............   4,535   4,291   4,288   4,854   5,538         5,242
Total shareholders'
 equity.................  25,799  31,391  39,148  44,224  58,369        65,550
</TABLE>
- --------
(1) In the first quarter of fiscal year 1994, the Company recorded
    nonrecurring charges related to the discontinuance of its BagEasy product
    line. In the fourth quarter of fiscal year 1994, the Company recorded
    nonrecurring charges for the write-off of a prepayment for inventory under
    the terms of a distribution agreement. See Note I and Note J to the
    Consolidated Financial Statements for additional information regarding
    these nonrecurring charges. Excluding these charges, net income and
    earnings per share would have been $9,040 and $0.52, respectively, for
    fiscal year 1994.
 
 
                                      10
<PAGE>
 
  MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS AND FINANCIAL
                                   CONDITION
 
GENERAL
 
  Statements in this section and elsewhere in this Prospectus about the
Company's belief or expectations or about whether any particular event or
circumstance is likely to occur or continue are forward-looking statements
that are subject to risks and uncertainties. For a discussion of factors that
could cause actual results to vary materially, see "Risk Factors" above.
 
  The Company's revenues are derived from the sale of medical devices used for
the treatment of patients suffering from respiratory disorders. The Company's
primary product lines are devices for the treatment of OSA, non-invasive
ventilatory support devices, patient mask products for OSA and non-invasive
ventilatory support therapy and single-use resuscitation products.
 
  The OSA product line and related accessories comprise the largest portion of
the Company's sales and are growing rapidly, accounting for 68% of total sales
for the six months ended December 31, 1995 versus 57% of sales for fiscal year
1993. Non-invasive ventilatory support products and related accessories are
the next largest product line and are growing rapidly as well, accounting for
26% of sales for the six months ended December 31, 1995 versus 23% of sales
for fiscal year 1993.
 
  The Company's sales currently are comprised of 68% equipment and 32%
consumable and single-use products. Consumable and single-use products consist
primarily of patient masks and related accessories used with the Company's OSA
and non-invasive ventilatory support devices, disposable anesthesia masks and
the BagEasy manual resuscitator and are an important component of the
Company's business. The Company expects to continue to derive significant
sales revenue from consumable and single-use products.
 
  The Company exports its products to foreign markets, primarily Europe,
Canada and the Far East. International sales have increased from 18% of net
sales in fiscal year 1993 to 20% of net sales in fiscal year 1995 and 23% of
net sales for the six months ended December 31, 1995. The Company expects its
international sales to grow at least as fast as overall sales, consistent with
its strategy of expanding its international distribution and manufacturing
organization.
 
  The Company's gross margin percentage has increased from 54% of sales for
fiscal year 1993 to 57% of sales for fiscal year 1995, principally due to a
shift in sales mix over the period to the Company's higher margin products and
to increased operating leverage. For the six months ended December 31, 1995,
the gross margin percentage declined to 56% of sales, principally due to
decreasing average selling prices for certain of the Company's major products.
The Company believes that downward pressure on gross margins is likely to
continue, primarily due to decreases in selling prices resulting from
increased purchasing influence of major customers, competition in the
Company's major product lines and continuing efforts by third party and
government payors to control reimbursement for medical products and services,
including products sold by the Company. Despite this downward pressure on
gross margins, operating income increased from 17% of sales for the six months
ended December 31, 1994 to 19% for the period ended December 31, 1995. This
increase in operating income as a percent of sales is due to operating
expenses increasing at rates less than the rate of growth in sales. In future
periods, it is the Company's intent to focus on continuing to control
operating expenses to counteract the downward pressure on gross margins.
 
                                      11
<PAGE>
 
RESULTS OF OPERATIONS
 
  The following table sets forth, for the periods indicated, the percentage of
net sales represented by items in the Consolidated Statements of Operations.
 
<TABLE>
<CAPTION>
                                                                 SIX MONTHS
                                                 YEAR ENDED         ENDED
                                                  JUNE 30        DECEMBER 31
                                               ----------------  -------------
                                               1993  1994  1995  1994    1995
                                               ----  ----  ----  -----   -----
<S>                                            <C>   <C>   <C>   <C>     <C>
Net sales..................................... 100%  100%  100%    100%    100%
Cost of goods sold............................  46    45    43      43      44
                                               ---   ---   ---   -----   -----
Gross profit..................................  54    55    57      57      56
General and administrative expenses...........  15    13    14      15      14
Sales, marketing and commission expenses......  18    19    18      18      17
Research and development expenses.............   5     6     7       7       7
Nonrecurring charges..........................   0     9     0       0       0
Interest expense..............................   0     0     0       0       0
Other income..................................   0    (1)   (1)     (1)     (1)
                                               ---   ---   ---   -----   -----
  INCOME BEFORE INCOME TAXES..................  16     9    19      18      19
Income taxes..................................   5     3     7       7       7
                                               ---   ---   ---   -----   -----
    NET INCOME................................  11%    6%   12%     11%     12%
                                               ===   ===   ===   =====   =====
</TABLE>
 
Six Months Ended December 31, 1995 vs. Six Months Ended December 31, 1994
 
  Net sales for the six months ended December 31, 1995 were $56,916,000, an
increase of 25% over the $45,538,000 recorded in the year earlier period. The
increase in net sales was primarily attributable to increases in total unit
and dollar sales for the Company's OSA and non-invasive ventilatory support
products. Sales of the Company's face masks and other patient interface
devices used as accessories for its OSA and non-invasive ventilatory support
units increased significantly during this period in both unit and dollar
terms.
 
  The Company's gross profit for the six months ended December 31, 1995 was
56% of net sales as compared to 57% of net sales for the year earlier period.
The decrease in the gross profit percentage was caused by reduced average
selling prices, primarily for the Company's REMstar Nasal CPAP systems, during
the current quarter and six-month period. These reductions in average selling
prices resulted from increasing competition in the OSA market, particularly
relative to the Company's large, national customers who receive lower prices
in exchange for volume purchase commitments.
 
  General and administrative expenses were $7,848,000 (14% of net sales) for
the six months ended December 31, 1995 as compared to $6,812,000 (15% of net
sales) for the year earlier period. The decrease in these expenses as a
percentage of net sales reflects the Company's ability, during the current
six-month period, to limit spending increases in these areas to rates less
than the rate of sales increase. The increase in absolute dollars was due
primarily to increased legal fees incurred relating to the previously
disclosed patent litigation.
 
  Sales, marketing and commission expenses were $9,513,000 (17% of net sales)
for the six months ended December 31, 1995 as compared to $8,299,000 (18% of
net sales) for the year earlier period. The decrease in these expenses as a
percentage of net sales reflects the Company's ability, during the current
six-month period, to limit spending increases in these areas to rates less
than the rate of sales increase. The increase in absolute dollars was due
primarily to costs associated with trade shows and related travel expenses,
salary expenses for new employees and commission expenses based on higher
sales levels achieved.
 
                                      12
<PAGE>
 
  Research and development expenses were $4,061,000 (7% of net sales) for the
six months ended December 31, 1995 as compared to $3,060,000 (7% of net sales)
for the year earlier period. The increase in absolute dollars reflects the
extensive new product development efforts during the period and currently
underway to support new product introductions in the Company's major product
groups and also to explore opportunities in other respiratory product areas.
Several new products have been introduced during the current fiscal year, and
other new product introductions are scheduled for the remainder of the fiscal
year, in some cases with initial distribution limited to international markets
until regulatory clearance to market in the United States is obtained.
Subsequent to the end of the six-month period ended December 31, 1995, the
Company received clearance from the FDA to market its new Aria CPAP System and
two new face mask products in the United States.
 
  The Company's effective income tax rate was 39% for the six months ended
December 31, 1995 as compared to 37% for the year earlier period. Changes in
the Company's effective income tax rate are due primarily to changes in the
relative proportion of the Company's taxable income attributable to its United
States operation versus taxable income attributable to its Hong Kong and
Peoples Republic of China operations. The United States operation pays income
taxes at a higher rate (approximately 41% before available income tax credits)
than do the Hong Kong and Peoples Republic of China operations. During the six
months ended December 31, 1995, the proportion of taxable income attributable
to the United States operation increased. In addition, the research and
development tax credit expired effective July 1, 1995. This income tax credit
had been available during prior fiscal years to reduce income taxes paid by
the United States operation and therefore reduced the effective income tax
rate.
 
  As a result of the factors described above, the Company's net income was
$6,728,000 (12% of net sales) for the six months ended December 31, 1995 as
compared to $5,116,000 (11% of net sales) for the six months ended December
31, 1994.
 
Fiscal 1995 vs. Fiscal 1994 and Fiscal 1993
 
  Net sales for fiscal year 1995 were $99,450,000, representing a 27% increase
in net sales over the $78,171,000 recorded in fiscal year 1994. Fiscal year
1994 net sales represented a 13% increase over the $69,286,000 recorded in
fiscal year 1993.
 
  The increase in net sales from fiscal year 1994 to fiscal year 1995 was
primarily attributable to increases in total unit sales of the Company's OSA
and non-invasive ventilatory support products and reflects sales growth across
all of the Company's market bases for these product groups. In addition, sales
of the Company's face mask products, including those used as accessories for
its OSA and non-invasive ventilatory support products and those manufactured
and sold on an OEM basis (disposable anesthesia masks), increased in both unit
and dollar terms. Finally, the overall increase in net sales was accomplished
in spite of a decrease in sales of the Company's resuscitation products
resulting from the Company's November 1993 decision to discontinue production
and shipment of its BagEasy line of disposable manual resuscitators, which
accounted for 2% of net sales for fiscal year 1994. Excluding the impact of
the discontinuance of the BagEasy product line, sales growth would have been
30% and 20% for fiscal years 1995 and 1994, respectively. In March 1995, the
Company introduced a redesigned version of the BagEasy product, and sales for
this redesigned version accounted for less than one-half of one percent of
fiscal year 1995 sales.
 
  The increase in net sales from fiscal year 1993 to fiscal year 1994 was also
primarily attributable to increases in total unit sales for the Company's OSA
and non-invasive ventilatory support products. Sales of resuscitation products
decreased from fiscal year 1993 to fiscal year 1994 as a result of the
discontinuance of the BagEasy manual resuscitator product discussed above
(BagEasy accounted for 8% of net sales for fiscal year 1993). Finally, sales
of the Company's disposable anesthesia masks decreased in both unit and dollar
terms from fiscal year 1993 to fiscal year 1994 due primarily to reduced
orders from the Company's customer for disposable anesthesia masks. The
reduction in disposable anesthesia mask sales was also due
 
                                      13
<PAGE>
 
to a reduction in the unit selling price of the masks under the terms of the
June 1993 supply agreement with the Company's sole customer for these masks.
Under the 1993 agreement, the customer may choose to pay a lower unit price
for the masks in exchange for assuming responsibility for freight and duty
costs related to mask shipments.
 
  The Company's gross profit was 57% of net sales for fiscal year 1995 as
compared to 55% of net sales for fiscal year 1994 and 54% of net sales for
fiscal year 1993. The increases in gross profit percentage were due primarily
to the Company's ability to limit the growth of its manufacturing support
costs to rates less than the rate of sales increases achieved and a shift in
sales mix toward the Company's higher margin products. In addition, the
increase in fiscal year 1994 gross profit was partially offset by a temporary
diversion of engineering resources away from research and development
activities and to manufacturing support activities in response to
recommendations resulting from an FDA inspection.
 
  General and administrative expenses were $14,050,000 (14% of net sales) for
fiscal year 1995 as compared to $10,028,000 (13% of net sales) for fiscal year
1994 and $10,581,000 (15% of net sales) for fiscal year 1993. The increase in
these costs from fiscal year 1994 to fiscal year 1995 was due to a provision
for year-end profit sharing bonuses and to higher administrative costs related
to the growth of the Company, including staffing increases, increased legal
fees, and increased provisions for uncollectible accounts receivable. The
decrease in these costs, both in absolute dollars and as a percentage of net
sales, from fiscal year 1993 to fiscal year 1994 was due primarily to the
absence of profit sharing bonuses in fiscal year 1994 based on financial
results achieved in that year.
 
  Sales, marketing and commission expenses were $17,696,000 (18% of net sales)
for fiscal year 1995 as compared to $15,069,000 (19% of net sales) for fiscal
year 1994 and $12,313,000 (18% of net sales) for fiscal year 1993. These
increases in absolute dollars were due to increased commission expenses paid
to independent sales representatives resulting from a shift in sales mix
towards products handled by these representatives, increased trade show and
training expenses, increased salary expenses for new employees in sales and
marketing management, and, for the fiscal year 1994 to fiscal year 1995
comparison, product literature and advertising expenses incurred in
anticipation of new product launches.
 
  Research and development expenses were $7,077,000 (7% of net sales) for
fiscal year 1995 as compared to $4,794,000 (6% of net sales) for fiscal year
1994 and $3,556,000 (5% of net sales) for fiscal year 1993. The continuing
increases in research and development spending reflect the Company's
commitment to investment in future product development and product
enhancements in all of the Company's major product groups. Extensive new
product development efforts were conducted during fiscal years 1994 and 1995
in anticipation of new product introductions in each major product group
during calendar year 1995. Development work was conducted on new families of
OSA and non-invasive ventilatory support devices and the redesigned BagEasy
manual resuscitator. Certain new models of the OSA devices were introduced in
the first quarter of fiscal year 1996, the redesigned BagEasy manual
resuscitator was introduced in March 1995, and a variety of patient interface
devices were introduced at various times during the three-year period.
Additional costs were also incurred throughout the three-year period to fund
clinical studies. Finally, the increase from 1994 to 1995 resulted, to a
lesser extent, from the temporary diversion during fiscal year 1994 of
engineering resources away from research and development activities and to
manufacturing support activities in response to recommendations resulting from
an FDA inspection.
 
  Nonrecurring charges totaled $7,086,000 (9% of net sales) for fiscal year
1994. The first component of these charges, recorded in the first quarter,
totaled $1,966,000 and represented costs incurred by the Company in connection
with its November 1993 decision, discussed above, to discontinue the
production and sale of its BagEasy line of manual resuscitators and recall all
remaining BagEasy products in distribution channels and customer inventories
and included provisions for write-offs of inventories and fixed assets, the
satisfaction of purchase order and compensation commitments, and costs
associated with the recall. The second component of these nonrecurring
charges, recorded in the fourth quarter of fiscal year 1994,
 
                                      14
<PAGE>
 
totaled $5,120,000 and represented the write-off of the remaining balance on
the prepayment for inventory and the net book value of units that had been
purchased under the terms of a distribution agreement. See Notes I and J to
the Consolidated Financial Statements for additional information regarding
these charges. The Company did not incur any nonrecurring charges in fiscal
years 1995 or 1993.
 
  The Company's effective income tax rate was 37% for fiscal year 1995 as
compared to 30% for fiscal year 1994 and 33% for fiscal year 1993. Changes in
the Company's effective income tax rate were due primarily to changes in the
relative proportions of taxable income attributable to its United States
operation versus taxable income attributable to its Hong Kong and Peoples
Republic of China operations because the United States operation pays income
taxes at a higher rate (approximately 41% before available income tax credits)
than do the Hong Kong and Peoples Republic of China operations. The proportion
of taxable income attributable to the United States operation has increased,
with the exception of fiscal year 1994. During that year, the nonrecurring
charges described above were incurred almost exclusively by the United States
operation, reducing taxable income attributable to the U.S. operation and
correspondingly reducing the Company's overall effective income tax rate.
 
  As a result of the factors described above, the Company's net income was
$11,677,000 (12% of net sales) for fiscal year 1995 as compared to $4,741,000
(6% of net sales) for fiscal year 1994 and $7,379,000 (11% of net sales) for
fiscal year 1993.
 
FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES
 
  The Company had working capital of $44,146,000 at December 31, 1995 and
$39,413,000 at June 30, 1995. Net cash used by operating activities was
$2,846,000 for the six months ended December 31, 1995 as compared to net cash
provided by operating activities of $3,295,000 for the six months ended
December 31, 1994. The net use of cash for the six-month period ended December
31, 1995 was due primarily to increases in inventories and accounts receivable
in amounts greater than the changes in those accounts during the first six
months of last fiscal year.
 
  The increase in trade accounts receivable in the six-month period comparison
was due to growth in international sales at a rate greater than total sales
(all international sales are made on extended payment terms) and to a
continued increase in the portion of the Company's domestic sales that are
being made on extended payment terms. The increase in inventories was due to
the Company's purchase of raw materials for, and the initial production of,
many of its new products, including those introduced during the current six-
month period and those scheduled for introduction during the remainder of the
fiscal year.
 
  The Company had working capital of $39,413,000 and $31,032,000 at June 30,
1995 and 1994, respectively. Net cash provided by operating activities was
$9,469,000, $4,568,000 and $10,669,000 for fiscal years 1995, 1994 and 1993,
respectively. The increase in cash provided by operating activities from
fiscal year 1994 to fiscal year 1995 was due to an increase in net income, a
decrease in refundable income taxes, and increases in accounts payable and
accrued expenses during fiscal year 1995 as compared to decreases or smaller
increases in those liability accounts during fiscal year 1994. The reduction
in cash provided by operating activities from fiscal year 1993 to fiscal year
1994 was due primarily to increases in accounts receivable and refundable
income taxes as well as decreases in accounts payable and accrued expenses.
 
  Trade accounts receivable increased from June 30, 1994 to June 30, 1995 at a
rate greater than the percentage change in sales for the fiscal years ending
on those dates primarily because the Company's quarterly sales were at their
highest level for those two fiscal years during the last quarter of fiscal
year 1995. In addition, the aging of the Company's receivables increased as a
result of extended payment terms offered by the Company under several flexible
financing programs.
 
                                      15
<PAGE>
 
  Net cash used by investing activities was $3,604,000 for the six months
ended December 31, 1995 as compared to $2,974,000 for the six months ended
December 31, 1994. Essentially all of the cash used by investing activities
for both periods represented capital expenditures, including the purchase of
production equipment, computer and telecommunications equipment and office
equipment. The funding for capital expenditures in the current six-month
period was provided by accumulated cash and short-term investment balances,
and in the first six months of last fiscal year was provided by positive cash
flows from operating activities and by accumulated cash and short-term
investment balances.
 
  Net cash used by investing activities was $7,711,000, $8,415,000, and
$6,363,000 for fiscal years 1995, 1994 and 1993, respectively. Net cash used
for capital expenditures was $6,941,000, $7,735,000 and $6,363,000 for the
respective years. Approximately $2,643,000 of the capital expenditures for
fiscal year 1995 and $1,203,000 of the capital expenditures for fiscal year
1993 were for the purchase and development of additional land and expansion
costs related to the Company's headquarters and manufacturing facility in
Murrysville, Pennsylvania. The remainder of the significant capital
expenditures for fiscal years 1995, 1994 and 1993 were for the purchase of
production equipment, office equipment and computers. In addition, fiscal year
1995 investing activities included an expenditure of $745,000 representing a
portion of the purchase price of an acquired business plus related acquisition
expenses. The remainder of the purchase price was paid with shares of the
Company's Common Stock. See Note L to the Consolidated Financial Statements
for additional information about this acquisition.
 
  In November 1993, the Company completed a 46,000 square foot addition to its
headquarters and manufacturing facility in Murrysville, Pennsylvania.
Financing for the addition includes a $978,000 Redevelopment Authority loan
that was received in June 1994 and a $1,100,000 loan that was received from
the Pennsylvania Industrial Development Authority in February 1995. Both loans
have a 2% fixed interest rate and a 15-year repayment term. See Note D to the
Consolidated Financial Statements for additional information about the
Company's long-term obligations. Funding for the remainder of the facility
addition and the other capital expenditures was provided by positive cash
flows from operating activities and from cash and short-term investment
balances.
 
  Net cash provided by financing activities also includes proceeds from the
issuance of Common Stock under the Company's stock option plans and the
receipt of a minority interest investment in a joint venture and is reduced by
payments made on long-term obligations. In October 1995, the Company entered
into a new line of credit facility with a commercial bank that provides for
the availability of $1,250,000 at the bank's prime interest rate until the
expiration date of the agreement on October 31, 1996. The Company expects that
this line of credit facility will be renewed upon its expiration. See Note D
to the Consolidated Financial Statements for a discussion of the line of
credit.
 
  As discussed above, in November 1993 the Company discontinued the production
and sale of its BagEasy line of manual resuscitators and recalled all
remaining BagEasy products in distribution channels and customer inventories.
The BagEasy product represented approximately 8% of the Company's total sales
for the year ended June 30, 1993 (the last full fiscal year it was sold) and
did not make significant contributions to profitability. In March 1995, the
Company began shipping a redesigned version of the BagEasy manual
resuscitator.
 
  The Company has not provided a valuation allowance for deferred income tax
assets because it has determined that it is more likely than not that such
assets can be realized, at a minimum, through carrybacks to prior years in
which taxable income was generated.
 
  The Company believes that positive cash flow from operating and financing
activities, its $1,250,000 line of credit facility, and its accumulated cash
and short-term investments will be sufficient to meet its current and
presently anticipated needs for the next 12 months for operating activities,
investing activities and financial activities (primarily consisting of
payments on long-term debt).
 
                                      16
<PAGE>
 
INFLATION
 
  Inflation has not had a significant effect on the Company's business during
the periods discussed.
 
QUARTERLY RESULTS OF OPERATIONS
 
  The following table sets forth selected operating results for the ten
quarters ending December 31, 1995. In the opinion of the Company's management,
this unaudited information has been prepared on the same basis as the audited
financial information, and includes all adjustments (consisting only of
normal, recurring adjustments) necessary to present this information fairly.
This financial information should be read in conjunction with the Company's
Consolidated Financial Statements and Notes thereto appearing elsewhere in
this Prospectus. These operating results are not necessarily indicative of
results for any future period.
 
                     (IN THOUSANDS EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                              THREE MONTHS ENDED
                                   ------------------------------------------
                                   SEPTEMBER 30  DECEMBER 31 MARCH 31 JUNE 30
                                       1993         1993       1994    1994
                                   ------------  ----------- -------- -------
<S>                                <C>           <C>         <C>      <C>
Net sales.........................   $18,224       $18,600   $19,308  $22,039
Gross profit......................     9,989        10,100    10,704   12,547
Nonrecurring charges..............     1,966(1)        -0-       -0-    5,120(2)
Net income (loss).................       873         2,064     2,244     (440)
Earnings (loss) per share.........   $  0.05       $  0.12   $  0.13  $ (0.03)
<CAPTION>
                                              THREE MONTHS ENDED
                                   ------------------------------------------
                                   SEPTEMBER 30  DECEMBER 31 MARCH 31 JUNE 30
                                       1994         1994       1995    1995
                                   ------------  ----------- -------- -------
<S>                                <C>           <C>         <C>      <C>
Net sales.........................   $21,670       $23,868   $25,599  $28,313
Gross profit......................    12,199        13,679    14,486   16,009
Net income........................     2,420         2,696     3,072    3,489
Earnings per share................   $  0.14       $  0.15   $  0.17  $  0.20
<CAPTION>
                                      THREE MONTHS ENDED
                                   -------------------------
                                   SEPTEMBER 30  DECEMBER 31
                                       1995         1995
                                   ------------  -----------
<S>                                <C>           <C>         
Net sales.........................   $26,675       $30,241
Gross profit......................    15,160        16,860
Net income........................     3,219         3,509
Earnings per share................   $  0.18       $  0.20
</TABLE>
 
(1) In the three months ended September 30, 1993, the Company recorded
    nonrecurring charges related to the discontinuance of its BagEasy product
    line. See Note J to the Consolidated Financial Statements for additional
    information regarding these nonrecurring charges.
 
(2) In the three months ended June 30, 1994, the Company recorded nonrecurring
    charges for the write-off of a prepayment for inventory under the terms of
    a distribution agreement. See Note I to the Consolidated Financial
    Statements for additional information regarding these nonrecurring
    charges.
 
                                      17
<PAGE>
 
                                   BUSINESS
 
  Respironics is a leading developer, manufacturer and marketer of medical
devices used for the treatment of patients suffering from certain respiratory
disorders. The Company's products are designed to reduce costs while improving
the effectiveness of patient care and are used primarily in the home and
hospitals, as well as emergency medical settings and alternative care
facilities. The Company's primary product lines are: (i) continuous positive
airway pressure ("CPAP") devices and bi-level positive airway pressure
("BiPAP") devices for the treatment of obstructive sleep apnea ("OSA"), a
serious disorder characterized by the repeated cessation of breathing during
sleep; (ii) bi-level non-invasive ventilatory support devices; (iii) patient
mask products; and (iv) single-use resuscitation products. Respironics markets
its products through a sales organization consisting of approximately 90
direct and independent sales representatives, who sell to a network of over
2,500 medical product dealers. The Company's sales have grown from $36.0
million in fiscal year 1991 to $99.5 million in fiscal year 1995 and are
currently comprised of 68% equipment and 32% consumable and single-use
products. With approximately 85% of its sales currently reaching the home care
market, Respironics believes that it is well-positioned to take advantage of
the growing preference for in-home treatment of patients suffering from
respiratory disorders.
 
COMPANY'S MARKET
 
  The Company competes in the respiratory products market, which was estimated
in 1995 to be approximately $2 billion annually in the U.S. Growth in this
market has been driven by the aging U.S. population and the shift in treatment
to lower cost delivery sites such as post-acute facilities and the home. This
shift has resulted from increasing pressure to reduce escalating health care
costs and has been enabled by improvements in technology which permit the
delivery of high quality care in non-hospital environments. Within the overall
respiratory products market, the Company's products compete in the OSA, non-
invasive ventilatory support, patient mask and resuscitation segments.
 
 Obstructive Sleep Apnea
 
  It is estimated that devices for the treatment of OSA constitute a $100
million annual U.S. market that is growing at 20 to 25% per year. This growth
is driven primarily by the increasing recognition by the medical community and
the general public of the prevalence of, and the serious medical complications
resulting from, OSA. Although an increasing number of OSA cases are being
diagnosed and treated, the National Commission on Sleep Disorders Research has
indicated that the vast majority of patients with sleep disorders currently
remain undiagnosed. OSA is a serious disorder caused by obstruction of the
upper airway during sleep. The condition is characterized by cycles of heavy
snoring, obstructive choking (apnea) and partial awakening. OSA sufferers can
experience hundreds of these cycles every night, resulting in repeated
arousals from sleep that lead to debilitating daytime sleepiness, which in
turn impairs functioning and has been linked to increased industrial and
automobile accidents. The National Commission has also indicated that OSA may
lead to higher incidence of strokes, heart disease and other serious medical
conditions.
 
  According to a January 1993 report by the National Commission, more than 18
million people in the U.S. have symptoms which are consistent with a diagnosis
of some degree of OSA. An April 1993 study published in the New England
Journal of Medicine concluded that 4% of men and 2% of women in the middle-
aged work force suffer from a clinically important degree of sleep apnea.
Other studies have shown that OSA also occurs in infants, children and the
elderly.
 
  In 1985, Respironics introduced the first commercially available CPAP
product designed for the treatment of OSA as an alternative to a surgical
technique referred to as uvulopalatopharyngoplasty ("UP3"), the standard
surgical method of treatment available at that time. UP3 involves a procedure
 
                                      18
<PAGE>
 
performed on the upper airway of a patient to remove excess tissue and to
streamline the shape of the airway. The treatment of OSA with CPAP involves
the use of a small portable air compressor to supply room air at a
predetermined positive pressure to a sleeping patient through flexible tubing
and a comfortably fitting mask. The continuous positive airway pressure
applied in this manner acts as a pneumatic splint, keeping the nasopharyngeal
airway open and unobstructed throughout the breathing cycle.
 
  Diagnosis of OSA and other forms of sleep disorders is usually made by
overnight testing with a multichannel recorder in a sleep disorders
laboratory. Patients are referred to a sleep laboratory by their family
physician or by a pulmonologist, neurologist or psychiatrist. The number of
sleep labs in the U.S. has grown dramatically during the past decade. The
Company estimates that there are currently approximately 1,300 sleep labs in
the U.S., up from 450 in 1988. Patients diagnosed with OSA for whom nasal CPAP
treatment is prescribed usually undergo a second night's testing in the sleep
laboratory to confirm that the treatment is effective and to determine the
level of CPAP that they require. Currently, there is a trend for more testing
to be performed in the home with portable monitoring units. These home studies
may either be attended by a sleep technician or unattended with the recorded
patient data ultimately transferred to a diagnostic unit for analysis by a
sleep professional. The U.S. market for sleep disorder related diagnostic and
monitoring devices is estimated to be $30 to $40 million annually.
 
 Non-Invasive Ventilatory Support
 
  The overall U.S. ventilation market is estimated to be $250 million
annually. Ventilators are used to augment or maintain patient breathing. Non-
invasive ventilatory support is an emerging sector of the overall ventilation
market, and is currently estimated to be approximately 10% of that market. In
1989, Respironics introduced the first non-invasive bi-level ventilatory
support device specifically designed to compensate for mask leaks. Growth
factors in the non-invasive ventilatory support market consist primarily of
the growing awareness in the medical community of the benefits of non-invasive
ventilatory support over traditional invasive ventilation and the aging of the
U.S. population with the resultant need for ventilatory assistance. While
certain critically ill patients require invasive ventilation, non-invasive
devices may be able to provide ventilatory assistance to certain patients who
are not dependent on a ventilator for continuous life support. Non-invasive
ventilatory support is provided through an external nasal mask and therefore
does not involve intubation.
 
 Patient Masks
 
  The markets served by the Company's patient mask products include the
delivery of CPAP and non-invasive ventilatory support therapy using the BiPAP
Ventilatory Support System, the delivery of emergency resuscitation to
patients who have stopped breathing and the delivery of anesthesia gases to
patients before, during and after surgical procedures. The use of patient
masks in the delivery of CPAP and BiPAP therapy has increased, and the Company
expects that this usage will continue to increase as new applications for such
therapy are identified and cleared for marketing by the FDA and also as the
installed base of the Company's CPAP products and BiPAP Ventilatory Support
Systems in the field grows.
 
 Resuscitation
 
  The market for manual resuscitators is estimated to be $50 million annually
and growing at 8 to 10% per year. Growth in this market is driven primarily by
concerns in the medical community about cross-contamination and the resulting
preference for products that are used by only one patient, including those
used once and then disposed of and those used several times by one patient and
then disposed of. The market served by the Company's resuscitation products
consists primarily of the market for disposable manual resuscitators,
including the Company's BagEasy product. Manual resuscitators are used to
ventilate the lungs of a patient by squeezing a self-inflating bag connected
to a patient mask or endotracheal tube. These devices can be used to
resuscitate patients who have stopped breathing and to sustain proper
breathing function for a short period of time, typically during transport, in
critically ill patients.
 
                                      19
<PAGE>
 
STRATEGY
 
  Respironics' objective is to be the market leader in innovative devices for
the treatment of respiratory disorders. The Company's strategy is to: (i)
continue to commit significant resources to the development of innovative
products; (ii) expand the breadth of its product lines to address the full
range of respiratory disorders; (iii) expand its international distribution
and manufacturing capabilities; (iv) pursue acquisitions of complementary
technologies, products and businesses; (v) enhance operational quality and
efficiency through process excellence; and (vi) develop partnering
relationships with customers.
 
  Develop Innovative Products. Respironics has established a record of
innovation in respiratory care and is committed to developing next-generation
respiratory devices that offer significant competitive advantages over
currently available products. The Company has consistently increased research
and development expenditures and expects to maintain research and development
spending at significant levels. The Company recently began introducing its new
generation of OSA products, the Great Performers line, and is currently
developing its next-generation family of non-invasive ventilatory support
devices which it expects to introduce in international markets in summer 1996.
The new OSA products include a CPAP device, Virtuoso, that will incorporate
automatic feedback technology, an important technological advance in OSA
therapy. The Company believes that innovation will allow it to maintain its
leading market position.
 
  Expand the Breadth of Its Product Lines. The Company plans to broaden its
current product lines and to add new product lines to address an increasing
range of respiratory disorders through new product development or acquisition
of technologies and products. These products will be offered at multiple price
points throughout the entire spectrum of health care delivery locations, from
hospitals and post-acute facilities to sleep labs to the home. The Company's
goal is to have the best products available for treating patients at each
health care delivery site. The Company believes that expanding the breadth of
its product lines will enable it to better meet the needs of the marketplace
and leverage its existing distribution network.
 
  Expand International Distribution and Manufacturing
Capabilities. Respironics intends to expand its position in international
markets by capitalizing on its established distribution and manufacturing
infrastructure. The Company's international distribution organization consists
of over 100 distributors in 58 countries worldwide. Over the past 24 months,
the Company has significantly expanded its international staff and established
new distribution relationships. International sales represented 23% of revenue
for the six-month period ended December 31, 1995, up from 20% in the prior
year's comparable period. In January 1996, the Company received ISO 9001
certification from the International Organization of Standards and, at the
same time, received authorization under the European Union's Medical Device
Directives to affix the "CE Mark" to the Company's products marketed
throughout the world. The Company believes that expansion of its international
capabilities will enable it to capitalize on growth opportunities in both
existing and developing foreign markets.
 
  Acquire Complementary Technologies, Products and Businesses. Respironics
intends to pursue the acquisition of technologies, products and entire
businesses. The Company believes that, as consolidation within the medical
technology industry continues, there will be attractive acquisitions available
to complement the Company's current product offerings. Consistent with this
strategy, in 1995 the Company completed the acquisition of Vitalog, a
developer, manufacturer and marketer of monitoring and diagnostic devices for
sleep and other respiratory disorders. The Company believes acquisitions will
allow it to quickly broaden its product lines and leverage its existing
distribution network.
 
  Enhance Operational Quality and Efficiency Through Process
Excellence. Respironics' management continuously reviews key aspects of the
Company's operations, such as manufacturing, marketing and research and
development, to determine whether certain processes can be performed more
efficiently. The Company has implemented a series of process improvements in
several operational areas that have resulted in cost efficiencies. The Company
believes these continuous process improvements will
 
                                      20
<PAGE>
 
enhance its reputation as a high-quality supplier while contributing to its
ability to maintain its operating margins.
 
  Develop Partnering Relationships with Customers. The Company intends to
continue to expand the scope of its relationships with its customers by
becoming an active partner with these customers as they distribute, service
and support the Company's products. These partnering activities have taken a
variety of forms to date, including providing training and medical education
programs for the customers' staffs and sales forces and maintaining a
consistent record of shipping over 90% of customer orders within 24 hours of
receipt. The Company believes these partnering relationships and programs help
to positively differentiate it from the other participants in the marketplace
and allow the Company to maintain and improve its competitive position. The
Company plans to expand the scope of these activities, particularly as the
Company's customer base consolidates.
 
PRODUCTS
 
  The Company's principal products are described in the following table:
 
<TABLE>
<CAPTION>
      PRODUCT                      DESCRIPTION                     DELIVERY SITES
      -------                      -----------                     --------------
 <C>               <S>                                           <C>
 OBSTRUCTIVE 
 SLEEP APNEA

 REMstar Choice    Small portable air pressurization CPAP        Home
 CPAP System       therapy unit. Features a cordless remote
                   controller, air pressure stability, minimal
                   operating noise and consumer-oriented
                   design. Six models, retailing for $700 to
                   $1,300.

 Aria CPAP System  Lightweight, compact and quiet                Home
                   microprocessor-driven CPAP system. Features
                   easy set up, built-in memory to record
                   patient usage data, dual time meters and
                   LCD display. First product introduction in
                   the Great Performers series. Currently
                   being distributed in international markets.
                   Recently received 510(k) clearance and
                   expected to begin selling into the U.S.
                   market in spring 1996.

 Virtuoso Smart    Self-adjusting CPAP system providing three    Home and sleep labs
 CPAP System       different therapy modes. Tracks patients'
                   changing needs and automatically adjusts
                   the pressure level, providing appropriate
                   therapy over time. Includes built-in memory
                   to record patient usage/therapy data.
                   Currently sold internationally and is
                   pending 510(k) clearance.

 BiPAP S Airway    BiPAP unit with automatic compensation for    Home and sleep labs
 Management System mask leaks. Used to treat severe cases of
                   OSA with bi-level pressure, which is more
                   comfortable to the patient than higher
                   pressures of CPAP therapy. Two models,
                   retailing for $2,800 to $3,000.
</TABLE>
 
                                      21
<PAGE>
 
<TABLE>
<CAPTION>
          PRODUCT                           DESCRIPTION                     DELIVERY SITES
          -------                           -----------                     --------------
 <C>                        <S>                                           <C>
 Cricket Oximeter and       Lightweight, portable and battery powered     Home, hospitals and
 HMS 5000 Monitor           devices that record and retain a variety of   sleep labs
                            patient physiological data via sensors.
                            Both units interface with a personal
                            computer to download and display the
                            collected data. Cricket retails for
                            approximately $1,800 and the more
                            sophisticated HMS 5000 retails for $10,000
                            to $25,000 (based on number of monitoring
                            channels).

 NON-INVASIVE VENTILATORY
 SUPPORT

 BiPAP S/T Ventilatory      Non-invasive bi-level device with automatic   Home
 Support System             compensation for mask leaks and two
                            separate therapy modes. Designed
                            specifically for mask supplied ventilatory
                            support. Two models, retailing for $6,000
                            to $8,000.

 BiPAP Hospital Ventilatory Non-invasive bi-level device that enhances    Hospitals and
 Support System             functionality of BiPAP S/T for use in the     post-acute
                            hospital environment. Two models, retailing   facilities
                            for $5,000 to $8,000.

 PATIENT MASKS
 Face Masks                 Various face masks designed to provide a      Home, hospitals
                            comfortable seal when used with the           and post-acute
                            Company's CPAP and BiPAP products. The        facilities
                            Company offers both reusable masks (for
                            home use) and disposable masks (for
                            hospital use) in a wide range of sizes.
                            Includes nasal sealing flap masks, as well
                            as the new GEL Mask and Monarch Mini Mask.

 Air-filled cushion         Disposable face masks used to deliver         Hospitals
 anesthesia masks           anesthesia gases during surgical
                            procedures. Provide a uniform seal around
                            the patient's nose and mouth via a soft
                            plastic air-filled cushion. Nine sizes
                            manufactured for an exclusive marketer on
                            an OEM basis.

 RESUSCITATION
 BagEasy Disposable         Self-inflating bag used to manually           Hospitals and
 Manual Resuscitator        resuscitate patients who have stopped         emergency
                            breathing and to sustain proper breathing     settings
                            function for a short period of time. Three
                            models of the device currently offered.
</TABLE>
 
                                       22
<PAGE>
 
 Obstructive Sleep Apnea Products
 
  Respironics believes it is the U.S. market share leader in OSA therapy
devices, with an approximate 50% market share. The Company's primary OSA
products are REMstar Choice and the BiPAP S Airway Management System and
related products such as masks, tubes, filters and headgear. Sales of OSA
products amounted to $38.7 million (68% of the Company's sales) for the six-
month period ended December 31, 1995, a 25% increase over the comparable
period in the prior year.
 
  REMstar Choice is the Company's fifth generation CPAP device for the
treatment of OSA. REMstar Choice consists of a small, portable air
pressurization device, air pressure control, a cordless remote on-and-off
control and a mask worn by the patient at home during sleep. REMstar Choice
offers improved functional features compared to its predecessor devices,
including improved pressure stability, reduced operating noise and a smaller
design. The BiPAP S Airway Management System is used to treat severe OSA and
is useful in improving acceptance of therapy by patients who have difficulty
tolerating CPAP. The unit senses the patient's breathing cycles and adjusts
the pressure accordingly. See "--Non-invasive Ventilatory Support Products"
for a further description of the BiPAP devices.
 
  The Company recently introduced its next-generation family of OSA products,
known as the "Great Performers" product line, with the first international
shipments commencing in July 1995. This new family of products will include
several products including CPAP, bi-level and clinical units. In February
1996, the Company received FDA clearance for one of these products, the Aria
CPAP system, and expects to begin domestic shipments of this device in spring
1996. The Aria CPAP system features built-in memory to record patient usage
data. The software necessary to extract this data from the Aria unit is
expected to be available in fall 1996. This software may require clearance to
market through the 510(k) process. This new family of products also includes a
CPAP device, known as Virtuoso, that utilizes innovative technology to monitor
the patient's airway and adjust output automatically in order to deliver the
appropriate pressure. Separate 510(k) filings are in process for Virtuoso and
other devices in the Great Performers series of products. There can be no
assurance that such 510(k) clearances for Virtuoso or any other products in
the Great Performers product line will be obtained in a timely manner or at
all. See "--Regulatory Matters." Products in the Great Performers product line
are being initially distributed solely in international markets until
regulatory clearance to market each product in the U.S. is obtained.
 
  Respironics also manufactures devices related to the diagnosis and
monitoring of sleep and other respiratory-related disorders, which it obtained
through the acquisition of Vitalog in 1995. The Vitalog acquisition provides
the Company with access to technology and products complementary to its own,
particularly in the OSA product line and is part of the Company's strategic
effort to enter the diagnostic market. The Company believes that the Vitalog
acquisition will enhance its marketing efforts in the OSA area by expanding
the Company's presence in sleep labs and permitting the Company to sell
diagnostic equipment, which helps drive the market for the Company's
therapeutic devices.
 
 Non-invasive Ventilatory Support Products
 
  The Company believes it is the leading manufacturer and marketer of non-
invasive ventilatory support devices in the U.S. for individuals who require
ventilatory assistance but who are not dependent on a ventilator for
continuous life support. Non-invasive ventilatory support products represented
$14.9 million (26% of the Company's sales) in the six months ended December
31, 1995, a 27% increase over the comparable period in the prior year.
 
  The Company's principal non-invasive ventilatory support product is the
BiPAP Ventilatory Support System. Introduced in December 1989, the BiPAP
Ventilatory Support System is a low-pressure, electrically-driven flow
generator with an electronic pressure control designed to augment patient
breathing by supplying pressurized air to the patient. The BiPAP Ventilatory
Support System was the first device for non-invasive use designed specifically
to compensate for mask leaks. BiPAP devices sense the
 
                                      23
<PAGE>
 
patient's breathing and adjust their output to assist in inhalation and
exhalation. The BiPAP Ventilatory Support System compensates for mask leaks,
which often occur in the delivery of ventilatory support to the patient,
thereby providing what the Company believes is a more efficient and consistent
non-invasive therapy than competing ventilators.
 
  The Company believes the BiPAP Ventilatory Support System has the potential
for increasing patient comfort because the BiPAP Ventilatory Support System
adapts to the patient's breathing cycles as opposed to requiring the patient
to adapt his breathing to the ventilator cycles and because it can be used
effectively with a patient mask rather than requiring intubation. The retail
price for a BiPAP unit also compares favorably to the cost of invasive
ventilators, which generally retail for $10,000 to $28,000.
 
  In May 1992, the Company introduced the Hospital BiPAP Ventilatory Support
System, which includes accessories such as an airway pressure monitor, a
detachable control panel, a disposable circuit and a mounting stand, all of
which are designed to allow the BiPAP Ventilatory Support System to be used
more easily in the hospital environment.
 
  The Company is supporting clinical trials that are investigating the
possible benefits of BiPAP therapy for different types of patient populations.
The results of recent studies have been favorable with respect to the use of
the BiPAP Ventilatory Support System for patients with chronic respiratory
deficiencies and patients with nocturnal breathing disorders who benefit from
ventilatory support. Applications being studied include use by patients
suffering from emphysema and other respiratory disorders, as well as other in-
hospital applications. The marketing of BiPAP Ventilatory Support Systems for
use in these patient populations may require additional clearances from the
FDA prior to marketing in the United States.
 
  The Company also is currently incorporating Proportional Assist Ventilation
("PAV") into its line of BiPAP ventilatory support products. PAV is a mode of
ventilatory support that provides assistance in proportion to the needs of the
patient. The Company began sponsoring clinical trials investigating PAV in
1995. Application for regulatory clearance to market devices that include PAV,
which is required prior to the marketing of such products in the U.S., has not
yet been made. The PAV technology was obtained by the Company through a non-
exclusive licensing arrangement with the University of Manitoba in Winnipeg,
Canada.
 
 Patient Mask Products
 
  Patient masks represented $9.1 million (16% of the Company's sales) in the
six months ended December 31, 1995, an increase of 33% over the comparable
period in the prior year. The Company provides three types of patient masks:
(1) masks used with CPAP and BiPAP devices including nasal sealing flap masks,
the Monarch Mini Mask and, in the near future, the GEL Mask; (2) disposable
air-filled cushion anesthesia masks primarily for use during surgery; and (3)
disposable SealEasy and Circle Seal resuscitation masks for use in medical
emergencies. The Company's patient masks are designed to respond to the
increasing demand for single-use products, which reduce the potential for
cross-contamination among patients and also help to minimize the exposure of
medical personnel to infectious diseases, such as tuberculosis and pneumonia.
The Company believes that its nasal sealing flap mask was the first mask to
adequately seal on a patient's face for air delivery, thereby minimizing
patient discomfort and promoting increased patient compliance with prescribed
usage. The Company recently received 510(k) clearance to market the Monarch
Mini Mask and GEL Mask for use with its CPAP and BiPAP devices. The Monarch
Mini Mask is designed to enhance patient comfort with its small size and
unique placement on the patient's face; the GEL Mask utilizes a gel-like
cushion to create a comfortable mask seal around the contours of the face. The
Company's line of disposable air-filled cushion anesthesia masks utilizes a
very thin and pliable soft plastic air-filled cushion around the nose and
mouth, which provides a uniform seal to prevent leakage of the anesthetic
gases and helps ensure compliance with anesthesia gas exposure standards
imposed on hospitals by regulatory bodies.
 
                                      24
<PAGE>
 
 Resuscitation Products
 
  The Company's other products consist of single-use resuscitation products.
The new BagEasy resuscitator represents a comprehensive redesign of an earlier
version of this product and includes significantly fewer components and
requires significantly fewer assembly steps than did the previous version. In
addition, the new BagEasy product includes features such as a flexible design
and an integral pressure valve that the Company believes distinguish it from
competitive products. A recent comparative study published in Respiratory Care
showed the BagEasy resuscitator to be the only manual resuscitator which met
all of the relevant standards established by the American Society for Testing
and Materials.
 
SALES, DISTRIBUTION AND MARKETING
 
  The Company sells its products primarily to home care and hospital dealers.
These parties in turn resell and rent the Company's products to end users. The
Company's products reach its customers primarily through the Company's field
network, which consists of 11 sales management employees, 28 direct sales
representatives, 54 independent manufacturers' representatives and over 2,500
medical products distributors (also referred to as "dealers").
 
  The Company manages its U.S. dealer network through a direct sales force and
independent manufacturers' representatives. The Company's U.S. sales
management team includes a Vice President of Sales and Marketing, a Director
of Sales and eight Regional Sales Managers. This team directs the activities
of 54 independent manufacturers' representatives and 26 direct sales
representatives and sales support specialists. In most areas of the U.S., the
hospital market is served by the direct sales representatives and the home
care market is served primarily by the independent manufacturers'
representatives.
 
  The Company's international sales efforts are conducted currently through a
European General Manager, a European Sales Manager, a South American Sales
Manager and a Pacific Rim Sales Manager. The Company also has two direct sales
representatives in Europe. All of the Company's international sales employees
serve both the home care and hospital markets. The Company's international
sales consist primarily of BiPAP Ventilatory Support Systems, BiPAP S Airway
Management Systems, REMstar Choice, Aria and related accessories.
 
  The Company's marketing organization is currently staffed with a Director of
Marketing and marketing-oriented Product Managers, who are assigned to each of
the Company's four principal product groups. The Product Managers stay abreast
of changes in the marketplace, with an emphasis on product use specifications,
features, price, promotions, education, training and distribution.
 
CUSTOMERS
 
  The Company's primary customers are home care and hospital medical equipment
dealers. These dealers purchase products from the Company for resale or rental
to patients (in the case of home care dealers) or to hospitals (in the case of
hospital dealers). The Company's dealers, numbering over 2,500, range in size
from large publicly-held companies with several hundred branch locations, to
small, owner-operated companies with one location. Consolidation among these
dealers, particularly those specializing in home care products, has taken
place recently as many larger dealers have acquired smaller dealers. In
addition, the Company's two largest home care dealer customers, both of which
were publicly held and had branch locations throughout the U.S., merged in
August 1995. The Company expects that consolidation among home care dealers is
likely to continue.
 
  Respironics is committed to quality and customer satisfaction and has
received the Zenith Award from the American Association of Respiratory Care
for three of the last five years. This award, which the Company last received
in December 1994, honors suppliers of respiratory medical products for
outstanding service to customers. Evaluation categories for the award include
product and service quality.
 
 
                                      25
<PAGE>
 
RESEARCH AND DEVELOPMENT
 
  The Company believes that its ability to identify product opportunities, to
respond to the needs of cardiopulmonary physicians and their patients in the
treatment of respiratory disorders and to incorporate the latest technological
innovations into its medical products has been and will continue to be
important to its success. The Company's research and development efforts are
focused on understanding the problems faced by cardiopulmonary physicians and
their patients' needs and on maintaining the Company's technological
leadership in its core product areas. The Company maintains both formal and
informal relationships with physician practitioners and researchers (including
sleep laboratories) to supplement these research and development efforts. The
Company's research and development efforts enable it to capitalize on
opportunities in the respiratory medical product market, through upgrading its
current products as well as developing new products.
 
  The Company conducts substantially all of its research and development for
existing and potential new products in the U.S. As of December 31, 1995, the
Company employed approximately 85 engineers in such activities. The research
and development staff performs overall conceptual design work for all products
and the design work related to the manufacturing, engineering and tooling for
products manufactured by the Company. The Company spent approximately $4.1
million (7% of sales) during the six-month period ended December 31, 1995, up
from 5% of sales in fiscal year 1993, to support product enhancement and new
product development.
 
  Several new product introductions took place during fiscal year 1995 and
early in fiscal year 1996 (including a redesigned BagEasy manual resuscitator,
new face masks, and part of the family of new OSA products), with additional
new product introductions expected to follow later in fiscal year 1996. By the
end of fiscal year 1996, the Company expects to have introduced additional new
products in both the Great Performers OSA product line and the non-invasive
ventilatory support product line. In some cases, initial distribution has
been, and will be, conducted in international markets until regulatory
clearance to market in the United States is obtained. See "--Regulatory
Matters."
 
MANUFACTURING
 
  The Company generally seeks to perform all major assembly work in its own
manufacturing facilities. The Company currently operates manufacturing
facilities in the U.S., Hong Kong and the Peoples Republic of China. The
Company's corporate headquarters and domestic manufacturing operations are
owned by the Company and are located in a 116,000 square foot facility in
Murrysville, Pennsylvania, where the Company conducts final assembly of its
OSA, non-invasive ventilatory support and resuscitation products. The Company
also leases, on a month to month basis, a 22,000 square foot office facility
in Plum Borough, Pennsylvania approximately two miles from the existing
corporate headquarters facility. This leased facility currently houses the
Company's customer satisfaction and technical service groups.
 
  In 1981, the Company began manufacturing operations in Hong Kong, where it
currently manufactures a portion of its patient mask products. The Company's
warehousing, assembly and administrative activities in Hong Kong are located
in an approximately 28,000 square foot light manufacturing complex in Kwun
Tong, Kowloon, Hong Kong. The premises are leased under a renewable agreement
expiring on April 30, 1997. The landlord of this space, Micro Electronics,
Ltd., is a shareholder of the Company.
 
  The Company conducts the remainder of its patient mask manufacturing in a
facility in Shenzen City in the Peoples Republic of China, bordering Hong
Kong. The facility is leased and operated by the Company. The present
manufacturing space totals approximately 66,000 square feet. The facility is
located in a special economic zone (where the Company has been operating since
1987) that was established by the Peoples Republic of China in 1980 to induce
foreign investment.
 
                                      26
<PAGE>
 
  The Company believes that its present facilities in the United States, Hong
Kong and the Peoples Republic of China are suitable and adequate for its
current and presently anticipated future needs. While each facility is
currently extensively utilized, additional productive capacity is available
through a variety of means including, at the Murrysville site, augmenting the
current partial second shift work schedule. Rental space, which the Company
believes is readily available and reasonably priced near each current
location, could be utilized as well. The Company also owns approximately 20
acres of land adjacent to the 10 acre site on which the Murrysville facility
is located. Future expansion in Murrysville, if needed, will take place on
this 20 acre site.
 
  The Company generally performs all major assembly work on all of its
products. It manufactures the plastic components for its patient mask products
and uses subcontractors to supply certain other components. The Company
believes that the raw materials for substantially all of its products are
readily available from a number of suppliers.
 
REGULATORY MATTERS
 
  The Company's products are subject to regulation by, among other
governmental entities, the FDA and corresponding foreign agencies. The FDA
regulates the introduction, manufacture, advertising, labeling, packaging,
marketing and distribution of and recordkeeping for such products. In
manufacturing and marketing its products, the Company must comply with FDA
regulations and is subject to various other FDA recordkeeping requirements and
to inspections by the FDA. The testing for and preparation of required
applications can be expensive, and subsequent FDA review can be lengthy and
uncertain. Moreover, clearance or approval, if granted, can include
significant limitations on the indicated uses for which a product may be
marketed. Failure to comply with applicable FDA regulations can result in
fines, civil penalties, suspensions or revocation of clearances or approvals,
recalls or product seizures, operating restrictions or criminal penalties.
Delays in receipt of, or failure to receive, clearances or approvals for the
Company's products for which such clearances or approvals have not yet been
obtained would adversely affect the marketing of such products in the United
States and could adversely affect the results of future operations.
 
  The Company must obtain FDA or foreign regulatory approval or clearance for
marketing the Company's new devices prior to their release. There are two
primary means by which the FDA permits a medical device to be marketed. A
manufacturer may seek clearance for the device by filing a 510(k) premarket
notification with the FDA. To obtain such clearance, the 510(k) premarket
notification must establish that the device is "substantially equivalent" to a
device that has been legally marketed or was marketed before May 28, 1976. The
manufacturer may not place the device into commercial distribution in the
United States until a substantial equivalence determination notice is issued
by the FDA. This notice may be issued within 90 days of submission, but
usually takes longer. The FDA, however, may determine that the proposed device
is not substantially equivalent, or require further information, such as
additional test data or clinical data, or require the Company to modify its
product labeling, before it will make a finding of substantial equivalence. In
addition, the FDA may inspect the Company's manufacturing facility before
issuing a notice of substantial equivalence and may delay or decline to issue
such notice until the facility is found to be in compliance with Good
Manufacturing Practice requirements. The process of obtaining FDA clearance of
a 510(k) premarket notification, including testing, preparation and subsequent
FDA review, can take a number of years and require the expenditure of
substantial resources.
 
  If a manufacturer cannot establish to the FDA's satisfaction that a new
device is substantially equivalent to a legally marketed device, it will have
to seek approval to market the device through the premarket approval
application ("PMA") process. This process involves preclinical studies and
clinical trials. The process of completing clinical trials, submitting a PMA
and obtaining FDA approval takes a number of years and requires the
expenditure of substantial resources. In addition, there can be no
 
                                      27
<PAGE>
 
assurance that the FDA will approve a PMA. The Company's export activities and
clinical investigations also are subject to the FDA's jurisdiction and
enforcement.
 
  Foreign regulatory approvals vary widely depending on the country. In
January 1996, the Company received ISO 9001 certification from the
International Organization of Standards, a quality standards organization
based in Geneva, Switzerland. At the same time, the Company received
authorization, under the European Union's Medical Device Directives, to affix
the "CE Mark" to the Company's products marketed throughout the world. The
primary component of the certification process was an audit of the Company's
quality system conducted by an independent agency authorized to perform
conformity assessments under ISO guidelines and the Medical Device Directives.
 
  Four FDA inspections have been conducted at the Company's facilities since
July 1, 1993. The first inspection took place from July 1993 through October
1993 at the Company's leased facility in Plum Borough, Pennsylvania where the
BagEasy product was then manufactured. A report on FDA Form 483 was issued by
the FDA investigators setting forth the results of the inspection, identifying
shortcomings with respect to systems procedures and documentation in the
BagEasy manufacturing process. Because making the modifications identified by
the FDA findings would have significantly delayed shipment to dealers and
customers and because the Company believed that a significant recall of
BagEasy products arising from an unrelated matter was necessary, the Company
discontinued the production and sale of the BagEasy product and recalled all
BagEasy products remaining in the field. The Company also responded to the
Form 483 findings with particular attention to implementing the required
improvements that were applicable to the systems, procedures and documentation
utilized at the Company's main facility in Murrysville, Pennsylvania. The
BagEasy recall is the only one of the five recalls since July 1, 1992 (all of
which have been voluntary) that resulted in a material adverse effect on the
Company's results of operations or financial condition.
 
  The second inspection took place at various times between May 1994 and
August 1994 at the Murrysville facility. In late August 1994, the FDA
investigators issued a report on an FDA Form 483 setting forth their
observations from this inspection. The Company responded to these findings in
September 1994. On December 22, 1994 the Company received a warning letter
from the FDA relating to the FDA's August 1994 Form 483 findings and the
Company's response thereto. A "warning letter" is a statement issued by the
FDA that significant violations have occurred and that the agency is prepared
to take enforcement action if corrective measures are not taken. In the
warning letter, the FDA raised issues relating to: (i) alleged shortcomings in
the Company's complaint processing procedures, (ii) the Company's alleged
failure to file certain MDRs and (iii) the Company's alleged failure to obtain
510(k) premarket notification clearances that the FDA indicated were necessary
for certain features of the Company's BiPAP systems and for certain claims
regarding that product's use. Each of these issues is discussed below.
 
  Complaint Procedure. The FDA stated that the Company's complaint records did
not comply with Good Manufacturing Practice regulations. The Company has
revised its procedures and complaint recordkeeping to address this issue. In
addition, the Company's complaint processing system has been automated. Based
on the results of a follow-up investigation described below, the Company
believes that this aspect of the FDA's warning letter has been resolved.
 
  Medical Device Reports. An MDR is required to be filed if a manufacturer
receives a report that (i) a death or serious injury has occurred and its
products may have caused or contributed to the death or serious injury or (ii)
its product has malfunctioned and the product would be likely to cause or
contribute to a death or serious injury if the malfunction were to recur. The
FDA stated in its warning letter that the Company had not filed an MDR for
what the FDA believed to be a reportable malfunction. In response,
 
                                      28
<PAGE>
 
the Company has filed MDRs with respect to certain malfunctions which the FDA
referred to at the time of its 1994 inspections, and the Company has also
changed certain procedures with respect to the determination of when an MDR
will be filed. Based on the results of a follow-up investigation described
below, the Company believes that this aspect of the FDA's warning letter has
been resolved.
 
  510(k) BiPAP Ventilation Issues. In 1987, the Company submitted to the FDA
its original 510(k) premarket notification for its bi-level ventilatory
support device. This 510(k) notification contained an intended use statement
indicating that the device was a non-continuous ventilator "for the treatment
of various pulmonary diseases." This notification identified the Bird(R) Mark
7(R) respirator as the predicate device. The FDA cleared this 510(k)
notification in 1987. The Company believes that it has all 510(k) premarket
notification clearances required for the uses for which it markets its BiPAP
ventilatory products.
 
  The concerns cited in the FDA warning letter with respect to the Company's
510(k) premarket notification clearances related solely to its BiPAP systems
and involved allegations that the Company had modified the previously cleared
devices so as to require additional clearances and that the Company was
marketing the devices for uses that were not within the scope of its 510(k)
premarket notification clearances. In connection with the December 1994
warning letter, some FDA officials have advised the Company that the existing
510(k) clearances for BiPAP are limited to the treatment of OSA in adults.
Based on the language in the Company's 1987 510(k) notification that was
cleared by the FDA, the Company disagrees with this position.
 
  Since receiving the warning letter, in an effort to cooperate with the FDA's
current requests, the Company has filed with the FDA additional 510(k)
premarket notifications with respect to the features that were cited in the
warning letter and certain uses beyond adult OSA, in each case indicating that
the application was filed without prejudice to the Company's position that no
additional filing was required. The FDA has reviewed the 510(k) applications
filed and has requested additional information. The Company has provided, and
is currently preparing, responses to the FDA's requests. There can be no
assurance that the FDA will clear any of the 510(k) premarket notifications or
that the clearances, if obtained, will be obtained in a timely manner, nor can
there be any assurance that the FDA will not take enforcement action with
respect to the prior or continued marketing of the devices for certain
indications or with certain features.
 
  Respironics is cooperating with the FDA in attempting to resolve the issues
which gave rise to the warning letter. Among other things, it has improved its
record keeping and complaint procedures and filed MDRs and 510(k) premarket
notification requests even where the Company believed such filings were not
required. The Company believes that it is in substantial compliance with FDA
requirements relating to its products and believes that the existing 510(k)
clearances for BiPAP encompass claims in addition to the treatment of OSA in
adults and the technical features cited in the FDA warning letter. However,
the Company does not know what, if any, action the FDA ultimately will take in
response to the Company's responses and additional 510(k) filings relating to
the warning letter. The Company does not believe that there is likely to be
any interruption of its business as a result of the issues raised in the
December 1994 warning letter, but there can be no assurance that such will not
occur or that the FDA will not take enforcement action.
 
  The third FDA inspection took place at the Murrysville facility in January
1995. A report on a Form 483 was issued by the FDA investigator setting forth
the results of the inspection, which had focused on a voluntary recall
conducted by the Company. The Form 483 also reiterated the FDA's position
relative to the 510(k) clearances for BiPAP. The Company responded to the Form
483 findings in February 1995.
 
  The fourth FDA inspection took place at the Murrysville facility in May
1995. A report on a Form 483 was issued by the FDA investigators setting forth
the results of the inspection, which had focused on the Company's revised
systems complaints and MDRs. Revisions had been made to these systems as
described above. The Form 483 issued for this inspection did not refer to MDRs
or complaint handling, but contained only the FDA's reiteration of its
position relative to the 510(k) clearances for BiPAP. The Company responded to
the Form 483 findings in June 1995.
 
 
                                      29
<PAGE>
 
  The Company recently has received 510(k) clearance for three products; a
CPAP device and two masks. In addition to the BiPAP 510(k) notifications
currently pending, the Company plans to file additional 510(k) notifications
as part of its continuing product development process.
 
THIRD PARTY REIMBURSEMENT
 
  The cost of a significant portion of medical care in the United States is
funded by government and private insurance programs, such as Medicare,
Medicaid and corporate health insurance programs including health maintenance
organizations and managed care organizations. The Company's future results of
operations and financial condition could be negatively affected by adverse
changes made in the reimbursement policies for medical products under these
insurance programs. If such changes were to occur, the ability of the
Company's customers (medical product distributors and dealers) to obtain
adequate reimbursement for the resale or rental of the Company's products
could be reduced. In recent years, limitations imposed on the levels of
reimbursement by both government and private insurance programs have become
more prevalent.
 
  The Company has obtained "procedure codes" for its home care products from
the Health Care Financing Administration ("HCFA"). These procedure codes
enhance the ability of medical product distributors and dealers to obtain
reimbursement for providing products to patients covered by Medicare. In
addition, many private insurance programs also use the HCFA procedure code
system. However, reimbursement levels can be reduced after a procedure code
has been established, as was the case in January 1994 when the reimbursement
level for all nasal CPAP systems was reduced.
 
  The amount of reimbursement that a hospital can obtain under the Medicare
diagnosis related group ("DRG") payment system for utilizing the Company's
products in treating patients is a primary determinant of the revenue that can
be realized by medical product distributors and dealers who resell or rent the
Company's hospital products. Many private insurance programs also utilize the
Medicare DRG system. The various uses of the Company's hospital products to
treat patients are provided within the DRG system. The levels of reimbursement
under the DRG system are also subject to review and change.
 
LEGAL PROCEEDINGS
 
  Patent Litigation. ResCare Limited, an Australian corporation ("ResCare")
and a subsidiary of ResMed, Inc. ("ResMed"), filed suit in Australia (the
"Australian suit") against the Company's Australian distributor in 1992,
alleging that the Company's CPAP products then being sold by such distributor
in Australia infringed upon an Australian patent (the "Australian Patent")
embodying a substantial part of ResCare's CPAP technology. After trial, the
Australian trial court held that the Company's products infringed the
Australian Patent (which the Court also held to be valid). This decision was
appealed, and in May 1994 the Australian Court of Appeals reversed the
decision of the trial court, declaring the Australian Patent invalid. This
decision also nullified the trial court's finding that the Company's products
infringed upon the Australian Patent. In October 1994, the Supreme Court of
Australia refused to accept an appeal of the decision of the Court of Appeals.
No further appeals can be made by ResCare with respect to the decision of the
Australian Court of Appeals. The Company now is seeking to collect from
ResCare that portion of the Company's expenses in pursuing the Australian suit
which the Company believes it is entitled to recover under applicable
Australian law.
 
  On January 9, 1995 ResCare filed an action (the "California suit") against
the Company in the United States District Court for the Southern District of
California alleging that in the manufacture and sale in the U.S. of nasal
masks and CPAP systems and components the Company infringes three U.S. patents
(the "ResCare Patents"), two of which are owned by and one of which is
licensed to ResCare. One of the three ResCare Patents was filed in the U.S.
shortly after the Australian Patent was issued and most of its claims are the
same as or similar to the Australian Patent. The other two patents involved in
the California suit
 
                                      30
<PAGE>
 
deal with mask applications and with a "ramp" feature of ResCare's CPAP
devices. In its complaint, ResCare seeks preliminary and permanent injunctive
relief, an accounting for damages and an award of three times actual damages
because of the Company's alleged actual knowledge of the alleged infringement.
On February 1, 1995 the Company filed an action in the United States District
Court for the Western District of Pennsylvania against ResCare seeking a
declaratory judgment that the three ResCare Patents are either invalid or
unenforceable or that the Company does not infringe the patents. The Company
also filed a motion in the United States District Court for the Southern
District of California seeking to transfer the California suit to the United
States District Court for the Western District of Pennsylvania. This motion
was granted and both cases have been consolidated in Pittsburgh, Pennsylvania.
Discovery has been underway since early spring 1995.
 
  In its answer to ResCare's complaint the Company denied, in all material
respects, the allegations of the complaint. It is the Company's belief, based
upon its investigation and discovery to date and upon discussions with its
counsel, that the ResCare Patents are invalid or unenforceable and that, even
if they are valid and enforceable, none of its products infringe any of the
ResCare Patents. The Company intends vigorously to defend and pursue this
litigation and strongly believes that the outcome should be favorable to it.
Nevertheless, it is possible that the ResCare patents could be held valid and
the Company's OSA products could be found to infringe the ResCare patents. If
that were to happen, the Company may be required to pay damages and either
would need to redesign its products so as not to infringe or would need to
obtain a license to use the ResCare Patents, any of which could have a
material adverse effect on the Company's financial condition and results of
operations. The sale of the products which ResCare alleges infringe the
ResCare Patents constitute approximately one-half of the Company's sales of
OSA products.
 
  Other Matters. The Company is, as a normal part of its business operations,
a party to other legal proceedings in addition to those described above. Legal
counsel has been retained for each proceeding and none of these proceedings is
expected to have a material adverse impact on the Company's results of
operations or financial condition. See "--Regulatory Matters" for information
concerning FDA matters.
 
COMPETITION
 
  The Company believes that the principal competitive factors in all of its
markets are product and service performance and innovation. Efficient
distribution and competitive price are also very important factors for its
more mature products. In the case of a number of the Company's and its
competitors' products, patent protection is becoming more prevalent and of
increasing competitive importance. The Company competes on a product-by-
product basis with various other companies, some of which have significantly
greater financial and marketing resources and broader product lines.
 
  The Company believes that it has the leading position in the U.S. market for
home care devices for the treatment of OSA. However, other manufacturers,
including other larger and more experienced manufacturers of home health care
products, have been in the market and the Company expects that competition
will increase. In its major market segments, the Company competes with three
principal competitors, Nellcor Puritan-Bennett ("Nellcor"), Healthdyne
Technologies ("Healthdyne") and ResMed. Nellcor, which is the Company's
largest major competitor and has the largest financial resources of the
Company's competitors, offers an array of products which compete with all of
the Company's products. Healthdyne is the primary competitor for the Company's
CPAP units and competes with the Company in the non-invasive ventilatory
support market as well. ResMed competes with the Company in the OSA market,
principally through its subsidiary, ResCare. The manual resuscitator market,
which the Company recently reentered with its new version of BagEasy, is a
very competitive, price-sensitive market.
 
PATENTS, TRADEMARKS AND LICENSES
 
  The Company seeks patent protection for its products through the acquisition
of patents and exclusive licensing arrangements. In addition, the Company
defends its patents when infringed by other
 
                                      31
<PAGE>
 
companies. The Company currently has approximately 20 U.S. and foreign patents
and 40 additional U.S. and foreign patent applications pending.
 
  The Company owns the proprietary rights to most of its current products,
including patents on the BiPAP Airway Management System, BiPAP Ventilatory
Support System, SealEasy, components of its nasal sealing flap mask and other
valve and mask related accessories.
 
  In July 1995, the Company received additional method and technical patent
protection related to its BiPAP devices. The method patent protection applies
to the use of bi-level pressure to treat OSA. The technical patent protection
covers the manner in which the device uses flow signals to trigger and apply
pressure.
 
  The Company currently has approximately 50 registered U.S. and foreign
trademarks and 90 additional U.S. and foreign trademark applications have been
filed.
 
EMPLOYEES
 
  As of December 31, 1995, the Company had 1,116 employees, including
approximately 244 hourly employees in the United States and 454 in Hong Kong
and the Peoples Republic of China. None of the Company's employees is covered
by collective bargaining agreements. The Company considers its labor relations
to be good and has never suffered a work stoppage as a result of a labor
conflict.
 
                                      32
<PAGE>
 
                                  MANAGEMENT
 
  The executive officers and directors of the Company are listed below,
followed by a brief description of their business experience and certain other
information. The Company's Board of Directors is divided into three classes,
with each class of directors serving a term of three years.
 
<TABLE>
<CAPTION>
            NAME                     AGE                 POSITION WITH THE COMPANY
            ----                     ---               ------------------------------
<S>                                  <C>               <C>
Gerald E. McGinnis                    61               Chairman of the Board
Dennis S. Meteny                      42               President, Chief Executive
                                                        Officer and Director
Ronald J. Zdrojkowski, Ph.D.          53               Vice President -- Research and
                                                         Development
Robert D. Crouch                      48               Vice President -- Sales and
                                                        Marketing
Robert A. Oates                       52               Vice President -- Engineering
Daniel J. Bevevino                    36               Controller and Chief Financial
                                                        Officer
Daniel P. Barry                       48               Director
Douglas A. Cotter, Ph.D.              52               Director
James H. Hardie                       66               Director
Joseph C. Lawyer                      50               Director
George J. Magovern, M.D.              72               Director
Bernard Shou-Chung Zau                58               Director
</TABLE>
 
  Mr. McGinnis has been a director of the Company since 1977 and has been
Chairman of the Board since November 1994. Mr. McGinnis is also an employee of
the Company, primarily responsible for coordination of strategic planning as
well as Board liaison with senior management of the Company. Mr. McGinnis was
the Chief Executive Officer of the Company from 1977 until November 1994 and
was its President from 1984 until November 1994. Prior to 1977, Mr. McGinnis
founded and was President of Lanz Medical Products Corporation, the
predecessor of the Company ("Lanz"). Prior to founding Lanz, Mr. McGinnis
worked at two Pittsburgh hospitals serving in various research capacities and
at Westinghouse Electric Corporation in the Bio-Engineering Department.
 
  Mr. Meteny has been a director of the Company since January 1986 and has
been President and Chief Executive Officer since November 1994. Mr. Meteny was
the Company's Executive Vice President and Chief Operating Officer from August
1992 until November 1994. He was Vice President--General Manager and Chief
Financial Officer of the Company from January 1988 through August 1992 and was
Vice President--Finance and Accounting from 1984 through January 1988. For
eight years prior to joining the Company he was employed as an accountant in
various auditing capacities by Ernst & Young LLP.
 
  Dr. Zdrojkowski has been Vice President--Research and Development since late
1990. Dr. Zdrojkowski was Vice President--Engineering for the Company from
1987 to 1990 and also held that position from 1977 to 1985. From 1985 to 1987
he was Product Development Manager. Dr. Zdrojkowski joined the Company in 1977
and has worked on the design, development and manufacturing of most of the
Company's products. Prior to joining the Company, he worked as a consultant
for various companies, assisting in the design of new medical products.
 
  Mr. Crouch has been Vice President--Sales and Marketing of the Company since
May 1989. He joined the Company as Director of Sales and Marketing in January
1989. From 1986 to 1989, Mr. Crouch worked as a consultant for various
companies on administrative and governmental affairs issues. From 1985 to
1986, he was employed by Cryogenic Associates, serving as Executive Vice
President and later President. From 1983 to 1985, Mr. Crouch was President,
Chief Executive Officer and Chairman of the Board of Beta Med Pharmaceuticals,
Inc., a start-up manufacturer of parenteral products.
 
                                      33
<PAGE>
 
  Mr. Oates has been Vice President--Engineering of the Company since July
1992. From 1982 to July 1992, he was employed by Westinghouse Electric
Corporation's Science & Technology Center, serving as the Manager of
Communication Systems, Sensor Development and Electro-optic Systems.
 
  Mr. Bevevino has been Chief Financial Officer and Controller of the Company
since November 1994. Mr. Bevevino joined the Company in 1988, serving as
Manager of Cost Accounting until 1990 when he was elected Controller. Prior to
joining the Company, Mr. Bevevino worked for five years as an accountant in
various auditing capacities at Ernst & Young LLP.
 
  Mr. Barry has been a director of the Company since August 1995. Currently he
is Vice Chairman of AMSCO International, Inc. ("AMSCO"), a manufacturer of
surgical sterilization equipment. He served as President and Chief Executive
Officer of AMSCO from October 1994 through July 1995 and Senior Vice
President--Financial and Planning (CFO) of AMSCO from April 1993 to October
1994. Prior thereto he served in various executive and consulting capacities
with AMSCO since 1981; he has been a director of AMSCO since 1991. He is also
a director of Tollgrade Communications, Inc., a designer and marketer of
proprietary products used by telephone companies in their diagnosis of lines
containing both copper and fiber optics.
 
  Dr. Cotter has been a director of the Company since February 1989. Since
1985 he has been President of Healthcare Decisions, Inc., a Massachusetts
health care and biotechnology consulting firm specializing in corporate
development, strategic planning and acquisitions. For nineteen years prior to
joining Healthcare Decisions he was employed by Corning Glass Works, where he
held various management positions in research, product development and
clinical information systems. Dr. Cotter is also a director of Applied
Microbiology, Inc., a developer, manufacturer and marketer of antimicrobial
food preservatives and specialty medical food products.
 
  Mr. Hardie has been a director of the Company since November 1991. He is a
lawyer and a partner of Reed Smith Shaw & McClay, a law firm with principal
offices in Pittsburgh, Washington and Philadelphia, which since 1988 has
performed legal services for the Company. Mr. Hardie has been a partner of
that firm since 1962. He is a Director of Access Corporation, a marketer and
developer of document and image handling systems and related software. He is
also a director of a number of other corporations the securities of which are
not publicly traded.
 
  Mr. Lawyer has been a director since November 1994. Since 1988, he has been
President and Chief Executive Officer and a Director of Chatwins Group, Inc.
("CGI"), headquartered in Pittsburgh, Pennsylvania, which designs,
manufactures and markets a broad range of fabricated and machined parts and
products, in a variety of industries primarily to original equipment
manufacturers. From 1986 to 1988 he was President and Chief Executive Officer
and a Director of CP Industries, a predecessor company of CGI. Prior thereto,
he held various operations, marketing, sales, finance and strategic planning
positions for U.S. Steel Corporation for 17 years.
 
  Dr. Magovern has been a director of the Company since 1983 and was Chairman
of the Board from November 1986 until November 1994. Since 1968 Dr. Magovern
has been director of the Department of Surgery, Allegheny General Hospital, a
736-bed, acute care teaching hospital in Pittsburgh. He has been affiliated
with Cardio-Thoracic Surgical Associates, Inc., a professional corporation,
since 1970. He has been a Clinical Associate Professor of Surgery at the
University of Pittsburgh School of Medicine and is currently a Professor of
Surgery at the Medical College of Pennsylvania. Dr. Magovern has participated
in the development of the application of bio-engineering to cardiac and
thoracic surgery at Allegheny General Hospital.
 
  Mr. Zau has been a director of the Company since July 1984. Since prior to
1984, Mr. Zau has been the Managing Director of Micro Electronics, Ltd., a
privately-held manufacturer of electrical components located in Hong Kong and
a shareholder in the Company. He currently serves as director of several other
privately-held entities in Hong Kong. He resides in Hong Kong.
 
                                      34
<PAGE>
 
                      PRINCIPAL AND SELLING STOCKHOLDERS
 
  The following table shows the number of shares of Common Stock beneficially
owned by each director of the Company, the Chief Executive Officer and the
four other most highly compensated executive officers for fiscal year 1995 who
continue to be officers, and by all directors and executive officers of the
Company as a group, as of February 20, 1996. Management of the Company does
not know of any other person who beneficially owned as of the record date more
than five percent of the outstanding shares of the Company's Common Stock. As
used herein, "beneficial ownership" means the sole or shared power to vote, or
to direct the voting of, a security, or the sole or shared investment power
with respect to a security (i.e., the power to dispose of, or to direct the
disposition of, a security). A person is deemed, as of any date, to have
"beneficial ownership" of any security that the person has the right to
acquire within 60 days after that date. Except as otherwise indicated, each of
the persons listed has sole investment and voting power with respect to the
shares indicated.
 
<TABLE>
<CAPTION>
                                       SHARES                   SHARES TO BE
                                    BENEFICIALLY                BENEFICIALLY
                                     OWNED PRIOR    NUMBER OF    OWNED AFTER
                                     TO OFFERING     SHARES      OFFERING(1)
             NAME OF              -----------------   BEING   -----------------
        BENEFICIAL OWNER           NUMBER   PERCENT  OFFERED   NUMBER   PERCENT
        -----------------         --------- ------- --------- --------- -------
<S>                               <C>       <C>     <C>       <C>       <C>
Daniel P. Barry..................         0   0.0%          0         0   0.0%
Douglas A. Cotter, Ph.D. (2).....    26,356   0.2           0    26,356   0.1
Robert D. Crouch (3).............   280,000   1.6           0   280,000   1.5
James H. Hardie (2), (4).........    25,616   0.2       5,000    20,616   0.1
Joseph C. Lawyer (2), (5)........     1,272   0.0           0     1,272   0.0
George J. Magovern, M.D. (2),
 (6).............................   923,909   5.5     300,000   623,909   3.3
Gerald E. McGinnis (7)........... 1,426,784   8.3     500,000   926,784   4.8
Dennis S. Meteny (8).............   422,568   2.5      40,000   382,568   2.0
Bernard Shou-Chung Zau (2).......   369,032   2.2      40,000   329,032   1.7
Ronald J. Zdrojkowski, Ph.D......   753,328   4.5     119,472   633,856   3.4
All of the directors and
executive officers
 as a group (12 persons) (9)..... 4,292,215  24.3   1,004,472 3,287,743  16.7
Former shareholders of Vitalog
 (10)............................    85,094   0.5      25,528    59,566   0.3
</TABLE>
- --------
(1) Assumes no exercise of the Underwriters' over-allotment option. If the
    over-allotment option is exercised in full, the percentage ownership of
    Dr. Magovern and Messrs. Hardie, McGinnis, Meteny, Zau and Zdrojkowski
    would be 3.2%, 0.1%, 4.3%, 2.0%, 1.7% and 3.3%, respectively.
 
(2) Includes shares subject to currently exercisable stock options granted
    under the Company's Non-Employee Directors' Stock Option Plan in the
    following amounts: Dr. Cotter, 24,016 shares; Mr. Hardie, 12,016 shares;
    Mr. Lawyer, 1,272 shares; Dr. Magovern, 24,016 shares; and Mr. Zau, 24,016
    shares.
 
(3) Includes 200,000 shares subject to currently exercisable stock options
    granted under the Company's stock option plans.
 
(4) Includes 13,000 shares of the Company's Common Stock held by a partnership
    in which Mr. Hardie is the general partner. Does not include 16,000 shares
    owned by Mr. Hardie's wife, as to which he disclaims any beneficial
    ownership.
 
(5) Does not include 550 shares held by Mr. Lawyer's wife, as to which he
    disclaims beneficial ownership.
 
                                      35
<PAGE>
 
(6) Includes 863,383 shares held jointly with Dr. Magovern's wife, as to which
    voting and investment power is shared, 28,000 shares held by the Magovern
    Grandchildren's Trust of which Dr. Magovern and his wife are the trustees
    and 8,510 shares held by the Magovern Family Foundation Trust of which Dr.
    Magovern and his wife are the Trustees. Dr. Magovern's business address is
    320 E. North Ave., Pittsburgh, PA 15212. Does not include 117,647 shares,
    all or part of which Dr. Magovern has the right to acquire in exchange for
    interests in the partnership which owns such shares.
 
(7) Includes 992,384 shares held jointly with Mr. McGinnis' wife, as to which
    voting and investment power is shared. Also includes 385,000 shares which
    would be outstanding upon the exercise of currently exercisable stock
    options granted to Mr. McGinnis. Also includes 34,400 shares held in the
    Gerald E. McGinnis Charitable Trust. Does not include 106,000 shares held
    by Mr. McGinnis' wife, as to which Mr. McGinnis disclaims beneficial
    ownership. Mr. McGinnis' business address is 1001 Murry Ridge Drive,
    Murrysville, PA 15668.
 
(8) Includes 184,000 shares held jointly with Mr. Meteny's wife, as to which
    voting and investment power is shared, and 4,000 shares held by Mr.
    Meteny's minor children, as to which he controls voting and investment
    power. Also includes 112,000 shares subject to currently exercisable stock
    options granted under the Company's stock option plans.
 
(9) Includes, in addition to the shares listed in the table for the named
    officers and directors, 1,000 shares owned by an executive officer not
    named in the table and 62,350 shares which would be outstanding upon the
    exercise by two executive officers not named in the table of currently
    exercisable stock options under the Company's stock option plans. Does not
    include any shares of a former director and executive officer who resigned
    such positions in August 1995, but continues as an employee of a
    subsidiary.
 
(10) Zeala Dunlop-Miles, Laughton E. Miles and a trust of which they are the
     trustees, and a maximum of five other persons, all former Vitalog
     shareholders, are selling an aggregate of 25,528 shares of the 85,094
     shares of Common Stock they received in the acquisition of Vitalog by the
     Company. None of the former Vitalog shareholders owns more than 1% of the
     outstanding shares of Common Stock.
 
  The information presented is based upon the knowledge of management and, in
the case of the named individuals, upon information furnished by them.
 
                                      36
<PAGE>
 
                                 UNDERWRITING
 
  Subject to the terms and the conditions of the Underwriting Agreement, the
Underwriters named below (the "Underwriters"), through their Representatives,
Alex. Brown & Sons Incorporated, Cowen & Company and Parker/Hunter
Incorporated, have severally agreed to purchase from the Company and the
Selling Stockholders the following respective numbers of shares of Common
Stock at the public offering price less the underwriting discounts and
commissions set forth on the cover page of this Prospectus:
<TABLE>
<CAPTION>
                                                                       NUMBER OF
     UNDERWRITER                                                        SHARES
     -----------                                                       ---------
<S>                                                                    <C>
Alex. Brown & Sons Incorporated.......................................
Cowen & Company.......................................................
Parker/Hunter Incorporated............................................
                                                                       ---------
Total................................................................. 3,030,000
                                                                       =========
</TABLE>
 
  The Underwriting Agreement provides that the obligations of the Underwriters
are subject to certain conditions precedent and that the Underwriters will
purchase all shares of the Common Stock offered hereby if any such shares are
purchased.
 
  The Company and the Selling Stockholders have been advised by the
Representatives of the Underwriters that the Underwriters propose to offer the
shares of Common Stock to the public at the public offering price set forth on
the cover page of this Prospectus and to certain dealers at such price less a
concession not in excess of $   per share. The Underwriters may allow, and
such dealers may reallow, a concession not in excess of $   per share to
certain other dealers. After the public offering, the offering price and other
selling terms may be changed by the Representatives of the Underwriters.
 
  The Company and a Selling Stockholder have granted to the Underwriters an
option, exercisable not later than 30 days after the date of this Prospectus,
to purchase up to 454,500 additional shares of Common Stock at the public
offering price less the underwriting discounts and commissions set forth on
the cover page of this Prospectus. To the extent that the Underwriters
exercise such option, each of the Underwriters will have a firm commitment to
purchase approximately the same percentage thereof that the number of shares
of Common Stock to be purchased by it shown in the above table bears to
3,030,000, and the Company and such Selling Stockholder will be obligated,
pursuant to the option, to sell such shares to the Underwriters. The
Underwriters may exercise such option only to cover over-allotments made in
connection with the sale of Common Stock offered hereby. If purchased, the
Underwriters will offer such additional shares on the same terms as those on
which the 3,030,000 shares are being offered.
 
  In connection with this offering, certain Underwriters and selling group
members (if any) or their respective affiliates who are qualified registered
market makers on the Nasdaq National Market may engage in passive market
making on Nasdaq in accordance with Rule 10b-6A under the Exchange Act during
the two business day period before the commencement of the offers of sales of
the Common Stock. The passive market making transactions must comply with
applicable volume and price limits and be identified as such. In general, a
passive market maker may display its bid at a price not in excess of the
highest independent bid for such security; if all independent bids are lowered
below the passive market maker's bid, however, such bid must then be lowered
when certain purchase limits are exceeded.
 
                                      37
<PAGE>
 
  The Company and the Selling Stockholders have agreed to indemnify the
Underwriters against certain liabilities, including liabilities under the
Securities Act.
 
  The Company, its officers and directors, and certain Selling Stockholders,
beneficially owning in the aggregate approximately 3,300,000 shares of Common
Stock, have agreed not to offer, sell or otherwise dispose of any such Common
Stock for a period of 90 days after the date of this Prospectus without the
prior written consent of Alex. Brown & Sons Incorporated, on behalf of the
Representatives of the Underwriters.
 
                                 LEGAL MATTERS
 
  Legal matters in connection with the sale of the shares offered by this
Prospectus are being passed upon for the Company and the Selling Stockholders
by Reed Smith Shaw & McClay, James H. Reed Building, 435 Sixth Avenue,
Pittsburgh, Pennsylvania 15219. James H. Hardie, a director of the Company and
a Selling Stockholder, is a partner of Reed Smith Shaw & McClay and is the
beneficial owner of 25,616 shares of Common Stock. Certain legal matters in
connection with the sale of the shares offered by this Prospectus are being
passed upon for the Underwriters by Ropes & Gray, One International Place,
Boston, Massachusetts 02110.
 
                                    EXPERT
 
  The consolidated financial statements of the Company at June 30, 1995 and
1994, and for each of the three years in the period ended June 30, 1995,
appearing in this Prospectus and Registration Statement have been audited by
Ernst & Young LLP, independent auditors, as set forth in their reports thereon
appearing elsewhere herein, and are included in reliance upon such reports
given upon the authority of such firm as experts in accounting and auditing.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
  The following documents heretofore filed with the Commission by the Company
are incorporated in this Prospectus by reference and made a part hereof:
 
  (1) The Company's Annual Report on Form 10-K for the fiscal year ended June
      30, 1995, filed pursuant to Section 13 of the Exchange Act.
 
  (2) The Company's Quarterly Reports on Form 10-Q for the quarters ended
      September 30, 1995 and December 31, 1995, filed pursuant to Section 13
      of the Exchange Act.
 
  (3) The description of the Common Stock set forth in the Company's
      Registration Statement on Form 8-A, effective May 12, 1988, including
      all reports updating such description.
 
  Each document or report subsequently filed by the Company with the
Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act
prior to the termination of this offering shall be deemed to be incorporated
by reference into this Prospectus and to be a part of this Prospectus from the
date of filing of such document or report. Any statement contained herein, or
in a document all or a portion of which is incorporated or deemed to be
incorporated by reference herein, shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement contained
herein or in any other subsequently filed document which also is or is deemed
to be incorporated by reference herein modifies or supersedes such statement.
Any such statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this Prospectus.
 
  The Company will provide without charge to any person to whom this
Prospectus is delivered, on the written or oral request of such person, a copy
of any or all of the foregoing documents incorporated by reference, other than
exhibits to such documents, unless such exhibits are specifically incorporated
by reference into such documents. Written requests should be directed to:
Investor Relations, Respironics, Inc., 1001 Murry Ridge Drive, Murrysville, PA
15668. Telephone requests may be directed to the Company at (412) 733-0209.
 
                                      38
<PAGE>
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<S>                                                                          <C>
Report of Independent Auditors.............................................. F-2
Consolidated Balance Sheets................................................. F-3
Consolidated Statements of Operations....................................... F-4
Consolidated Statements of Cash Flows....................................... F-5
Consolidated Statements of Shareholders' Equity............................. F-6
Notes to Consolidated Financial Statements.................................. F-7
</TABLE>
 
                                      F-1
<PAGE>
 
                        REPORT OF INDEPENDENT AUDITORS
 
Board of Directors
Respironics, Inc.
 
  We have audited the accompanying consolidated balance sheets of Respironics,
Inc. and subsidiaries as of June 30, 1995 and 1994, and the related
consolidated statements of operations, shareholders' equity, and cash flows
for each of the three years in the period ended June 30, 1995. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.
 
  We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.
 
  In our opinion, the financial statements referred to above present fairly,
in all material respects, the consolidated financial position of Respironics,
Inc. and subsidiaries at June 30, 1995 and 1994, and the consolidated results
of their operations and their cash flows for each of the three years in the
period ended June 30, 1995, in conformity with generally accepted accounting
principles.
 
  As discussed in Note A to the consolidated financial statements, the Company
changed its method of accounting for income taxes in 1994.
 
                                          Ernst & Young LLP
 
Pittsburgh, Pennsylvania
September 11, 1995
 
                                      F-2
<PAGE>
 
                       RESPIRONICS, INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                JUNE 30         DECEMBER 31
                                           1994        1995        1995
                                        ----------- ----------- -----------
                                                                (UNAUDITED)
<S>                                     <C>         <C>         <C>         
                ASSETS
CURRENT ASSETS
  Cash and short-term investments...... $12,384,054 $16,126,904 $ 9,792,908
  Trade accounts receivable, less
   allowance for doubtful accounts of
   $525,000, $700,000 and $850,000.....  15,011,285  19,448,187  25,026,073
  Refundable income taxes..............   1,787,265         -0-         -0-
  Inventories..........................   7,833,755  13,136,664  17,300,722
  Prepaid expenses and other...........   1,168,167   1,951,358   2,338,969
  Deferred income tax benefits.........   2,021,776   2,200,595   2,200,595
                                        ----------- ----------- -----------
      TOTAL CURRENT ASSETS.............  40,206,302  52,863,708  56,659,267
PROPERTY, PLANT AND EQUIPMENT
  Land.................................   2,417,334   2,589,117   2,773,246
  Building.............................   7,713,405   8,674,675   8,779,610
  Machinery and equipment..............  10,849,230  14,155,510  15,762,719
  Furniture and office equipment.......   7,240,447   9,394,000  10,681,202
  Leasehold improvements...............     519,744     577,175     979,717
                                        ----------- ----------- -----------
                                         28,740,160  35,390,477  38,976,494
  Less allowances for depreciation and
   amortization........................  11,929,911  15,443,041  17,207,404
                                        ----------- ----------- -----------
                                         16,810,249  19,947,436  21,769,090
  Funds held in trust for construction
   of new facility.....................     680,372     710,929     729,087
OTHER ASSETS...........................   1,220,297   2,668,592   3,024,794
COST IN EXCESS OF NET ASSETS OF
BUSINESS ACQUIRED......................         -0-   1,847,905   1,769,271
                                        ----------- ----------- -----------
                                        $58,917,220 $78,038,570 $83,951,509
                                        =========== =========== ===========
 LIABILITIES AND SHAREHOLDERS' EQUITY
   CURRENT LIABILITIES
  Accounts payable..................... $ 3,086,776 $ 4,858,554 $ 3,974,185
  Accrued compensation and related
   expenses............................   3,055,420   3,827,187   2,932,812
  Accrued expenses.....................   1,968,977   2,694,298   3,479,913
  Income taxes.........................     658,364   1,572,121   1,633,650
  Current portion of long-term
   obligations.........................     404,866     498,150     492,729
                                        ----------- ----------- -----------
      TOTAL CURRENT LIABILITIES........   9,174,403  13,450,310  12,513,289
LONG-TERM OBLIGATIONS..................   4,854,440   5,537,996   5,241,953
MINORITY INTEREST......................     664,268     681,068     646,199
COMMITMENTS
SHAREHOLDERS' EQUITY
  Common Stock, $.01 par value;
    authorized 40,000,000 shares;
    issued and outstanding
    16,344,690 shares at June 30, 1994,
    16,744,785 shares at June 30, 1995,
    and 16,851,860 shares at
    December 31, 1995..................     163,446     167,448     168,519
  Additional capital...................  16,790,919  19,254,977  19,706,538
  Retained earnings....................  27,269,744  38,946,771  45,675,011
                                        ----------- ----------- -----------
      TOTAL SHAREHOLDERS' EQUITY.......  44,224,109  58,369,196  65,550,068
                                        ----------- ----------- -----------
                                        $58,917,220 $78,038,570 $83,951,509
                                        =========== =========== ===========
</TABLE>
 
See notes to consolidated financial statements.
 
                                      F-3
<PAGE>
 
                       RESPIRONICS, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                  YEAR ENDED JUNE 30             SIX MONTHS ENDED DECEMBER 31
                             1993         1994         1995           1994            1995
                          -----------  -----------  -----------  --------------  --------------
                                                                          (UNAUDITED)
<S>                       <C>          <C>          <C>          <C>             <C>
Net sales...............  $69,285,613  $78,171,028  $99,450,333  $   45,537,612  $   56,915,794
Cost of goods sold......   32,113,280   34,830,308   43,077,158      19,659,362      24,895,319
                          -----------  -----------  -----------  --------------  --------------
                           37,172,333   43,340,720   56,373,175      25,878,250      32,020,475
General and
administrative
 expenses...............   10,580,602   10,027,842   14,050,071       6,811,820       7,847,827
Sales, marketing and
 commission expenses....   12,313,483   15,069,159   17,696,059       8,298,675       9,513,054
Research and development
 expenses...............    3,555,903    4,794,242    7,077,216       3,060,328       4,061,333
Nonrecurring charges....          -0-    7,086,085          -0-             -0-             -0-
Interest expense........      175,843      171,223      193,550          95,943         100,595
Other income............     (549,635)    (624,180)  (1,178,685)       (509,783)       (532,235)
                          -----------  -----------  -----------  --------------  --------------
                           26,076,196   36,524,371   37,838,211      17,756,983      20,990,574
                          -----------  -----------  -----------  --------------  --------------
      INCOME BEFORE
      INCOME TAXES......   11,096,137    6,816,349   18,534,964       8,121,267      11,029,901
Income taxes............    3,717,206    2,075,105    6,857,937       3,004,871       4,301,661
                          -----------  -----------  -----------  --------------  --------------
      NET INCOME........  $ 7,378,931  $ 4,741,244  $11,677,027  $    5,116,396  $    6,728,240
                          ===========  ===========  ===========  ==============  ==============
Earnings per Share......  $      0.43  $      0.27  $      0.67  $         0.29  $         0.38
                          ===========  ===========  ===========  ==============  ==============
Weighted Average Number
 of Shares Used in
 Computing Earnings Per
 Share..................   17,318,606   17,280,680   17,532,422      17,346,028      17,730,325
</TABLE>
 
See notes to consolidated financial statements.
 
                                      F-4
<PAGE>
 
                       RESPIRONICS, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                    SIX MONTHS ENDED
                                   YEAR ENDED JUNE 30                  DECEMBER 31
                                    1993         1994         1995         1994         1995
                                -----------  -----------  -----------  -----------  ----------
                                                                      (UNAUDITED)
<S>                             <C>          <C>          <C>          <C>          <C>
OPERATING ACTIVITIES 
  Net income..................   $ 7,378,931  $ 4,741,244  $11,677,027  $ 5,116,396  $6,728,240
  Adjustments to
   reconcile net income to
   net cash provided by
   operating activities:
    Depreciation and
     amortization.............     3,858,339    3,571,500    3,831,793    1,956,623   1,842,997
    Provision for
     deferred income taxes....  (1,390,181)     191,763     (178,819)         -0-         -0-
    Provision for losses
     on write-off of
     equipment................          -0-      270,791          -0-          -0-         -0-
    Provision for losses
     on accounts
     receivable...............      100,000       75,000      175,000       75,000     150,000
    Loss on sale of
     equipment................          -0-          -0-       35,719          -0-         -0-
    Provision for
     nonrecurring charges.....          -0-    5,120,000          -0-          -0-         -0-
    Changes in operating
     assets and
     liabilities:
      Increase in
       accounts receivable....   (2,198,685)  (3,812,916)  (4,515,077)  (2,793,514) (5,727,886)
      (Increase) decrease in
       refundable income 
       taxes..................          -0-   (1,787,265)   1,787,265    1,787,265         -0-
      Increase in
       inventories and prepaid
       expenses...............     (705,007)  (1,057,575)  (5,770,417)  (2,387,016) (4,551,669)
      Decrease (increase) in
       other assets...........      289,908     (949,001)  (1,448,295)     (73,948)   (356,202)
      Increase (decrease) in
       accounts payable.......    1,547,383     (738,842)   1,680,521     (765,318)   (884,369)
      Increase (decrease) in
       accrued compensation
       and related expenses...     1,642,235     (947,563)     764,557      (36,256)   (894,375)
      (Decrease) increase in
       accrued expenses.......      (42,716)     528,074      516,442      447,217     785,615
      Increase (decrease) in
       accrued income taxes...      188,668     (636,912)     912,999      (31,624)     61,529
                                -----------  -----------  -----------  -----------  ----------
      NET CASH PROVIDED
      (USED) BY
      OPERATING
      ACTIVITIES..............   10,668,875    4,568,298    9,468,715    3,294,825  (2,846,120)
INVESTING ACTIVITIES
  Purchase of property,
   plant and equipment........   (6,362,511)  (7,734,854)  (6,940,667)  (2,961,843) (3,586,017)
  Proceeds from sale of
   equipment..................          -0-          -0-        5,503          -0-         -0-
  Increase in funds held
   in trust for
   construction of new
   facility...................          -0-     (680,372)     (30,557)     (12,595)    (18,158)
  Acquisition of a
   business, net of cash
   acquired...................          -0-          -0-     (745,433)         -0-         -0-
                                -----------  -----------  -----------  -----------  ----------
      NET CASH USED BY
      INVESTING
      ACTIVITIES..............   (6,362,511)  (8,415,226)  (7,711,154)  (2,974,438) (3,604,175)
FINANCING ACTIVITIES
  Proceeds from long-
   term obligations...........          -0-      978,396    1,132,760          -0-         -0-
  Reduction in long-term
   obligations................     (263,601)    (382,508)    (355,920)    (233,028)   (301,464)
  Issuance of common
   stock......................      377,962      335,280    1,191,649      400,305     452,632
  Increase (decrease) in
   minority interest..........          -0-      664,268       16,800        4,601     (34,869)
                                -----------  -----------  -----------  -----------  ----------
      NET CASH PROVIDED
      BY FINANCING
      ACTIVITIES..............      114,361    1,595,436    1,985,289      171,878     116,299
                                -----------  -----------  -----------  -----------  ----------
      INCREASE (DECREASE) IN
      CASH AND SHORT-TERM
      INVESTMENTS.............    4,420,725   (2,251,492)   3,742,850      492,265  (6,333,996)
Cash and short-term
 investments at beginning
 of period....................   10,214,821   14,635,546   12,384,054   12,384,054  16,126,904
                                -----------  -----------  -----------  -----------  ----------
CASH AND SHORT-TERM
INVESTMENTS AT END
OF PERIOD.....................  $14,635,546  $12,384,054  $16,126,904  $12,876,319  $9,792,908
                                ===========  ===========  ===========  ===========  ==========
</TABLE>
 
See notes to consolidated financial statements.
 
                                      F-5
<PAGE>
 
                       RESPIRONICS, INC. AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
 
<TABLE>
<CAPTION>
                             COMMON STOCK
                          -------------------
                                              ADDITIONAL    RETAINED
                            SHARES    AMOUNT    CAPITAL      EARNINGS     TOTAL
                          ---------- -------- -----------  ----------- -----------
<S>                       <C>        <C>      <C>          <C>         <C>
Balance at July 1, 1992
 as previously reported.   8,065,907 $ 80,659 $16,160,464  $15,149,569 $31,390,692
Two-for-one stock split.   8,065,907   80,659     (80,659)         -0-         -0-
                          ---------- -------- -----------  ----------- -----------
  BALANCE AT JULY 1,
  1992 AS ADJUSTED......  16,131,814  161,318  16,079,805   15,149,569  31,390,692
Net income for the year
 ended June 30, 1993....         -0-      -0-         -0-    7,378,931   7,378,931
Shares sold pursuant to
 stock option plans.....      89,346      894     343,668          -0-     344,562
Shares sold pursuant to
 consulting  agreement..       8,000       80      33,320          -0-      33,400
                          ---------- -------- -----------  ----------- -----------
  BALANCE AT JUNE 30,
  1993..................  16,229,160  162,292  16,456,793   22,528,500  39,147,585
Net income for the year
 ended June 30, 1994....         -0-      -0-         -0-    4,741,244   4,741,244
Shares sold pursuant to
 stock option plans.....     107,530    1,074     289,526          -0-     290,600
Shares sold pursuant to
consulting  agreement...       8,000       80      44,600          -0-      44,680
                          ---------- -------- -----------  ----------- -----------
  BALANCE AT JUNE 30,
  1994..................  16,344,690  163,446  16,790,919   27,269,744  44,224,109
Net income for the year
 ended June 30, 1995....         -0-      -0-         -0-   11,677,027  11,677,027
Shares sold pursuant to
 stock option plans.....     315,001    3,150   1,188,499          -0-   1,191,649
Acquisition of a
 business...............      85,094      852   1,275,559          -0-   1,276,411
                          ---------- -------- -----------  ----------- -----------
  BALANCE AT JUNE 30,
  1995..................  16,744,785  167,448  19,254,977   38,946,771  58,369,196
Net income for the six
 months ended  December
 31, 1995 (unaudited)...         -0-      -0-         -0-    6,728,240   6,728,240
Shares sold pursuant to
 stock option plans
(unaudited).............     107,075    1,071     451,561          -0-     452,632
                          ---------- -------- -----------  ----------- -----------
  BALANCE AT DECEMBER
  31, 1995 (unaudited)..  16,851,860 $168,519 $19,706,538  $45,675,011 $65,550,068
                          ========== ======== ===========  =========== ===========
</TABLE>
 
See notes to consolidated financial statements.
 
                                      F-6
<PAGE>
 
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                      RESPIRONICS, INC. AND SUBSIDIARIES
 (INFORMATION PERTAINING TO THE SIX MONTH PERIODS ENDED DECEMBER 31, 1994 AND
                              1995 IS UNAUDITED.)
 
NOTE A--SIGNIFICANT ACCOUNTING POLICIES
 
  Principles of Consolidation: The consolidated financial statements include
the accounts of Respironics, Inc. (the Company), its consolidated wholly owned
foreign subsidiary, Respironics (HK) Ltd., its wholly owned domestic
subsidiary, RIC Investments, Inc., and a foreign joint venture in which it
holds a 51% equity investment. The joint venture partner's 49% equity interest
is included in the Company's financial statements as minority interest. All
significant intercompany accounts and transactions have been eliminated in
consolidation.
 
  Revenue Recognition: Revenue is recognized from sales when a product is
shipped.
 
  Inventories: Inventories are valued at the lower of cost (first-in, first-
out) or market.
 
  Property, Plant and Equipment: Property, plant and equipment is recorded on
the basis of cost. Depreciation is computed using the straight-line method
based upon the estimated useful lives of the respective assets, except for
assets under capital leases which are depreciated using the straight-line
method over the shorter of the lease term or the estimated useful lives of
such assets. Amortization of assets under capital leases is included in
depreciation expense.
 
  Income Taxes: Effective July 1, 1993, the Company adopted Statement of
Financial Accounting Standards #109, "Accounting for Income Taxes". Under this
method, deferred tax assets and liabilities are determined based on
differences between financial reporting and tax bases of assets and
liabilities and are measured using the enacted tax rates and laws that will be
in effect when differences are expected to reverse. The Company has elected
not to restate the consolidated financial statements of any prior years. The
cumulative effect of the adoption and the effect of the adoption on the
results of operations for the year ended June 30, 1994 were not material.
 
  The Company does not provide for federal income taxes on the undistributed
earnings of its foreign subsidiary (other than deemed dividends which are
taxed currently) because such earnings are reinvested and, in the opinion of
management, will continue to be reinvested indefinitely.
 
  Foreign Currency Translation: The Company follows Statement of Financial
Accounting Standards No. 52 for the translation of the accounts of its foreign
subsidiary, Respironics (HK) Ltd., and its joint venture. Foreign currency
assets and liabilities are translated into United States dollars at the rate
of exchange existing at the statement date or historical rates depending upon
the nature of the account. Income and expense amounts are translated at the
average of the monthly exchange rates. Adjustments resulting from these
translations are immaterial.
 
  Stock Split: In February 1995, the Company's Board of Directors declared a
two-for-one stock split of the Company's common stock, distributing on March
17, 1995 one additional share of common stock for each share held of record on
March 3, 1995. All agreements concerning stock options were amended to provide
for issuance of two shares of common stock for every one share issuable prior
to the split. An amount equal to the par value of the shares issued was
transferred from additional capital to the common stock account. This transfer
has been reflected in the consolidated statements of changes in shareholders'
equity at July 1, 1992. All references to number of shares, except shares
authorized, and to per-share information in the consolidated financial
statements have been adjusted to reflect the stock split on a retroactive
basis.
 
  Stock Options: Stock options are granted to certain employees and certain
members of the Company's Board of Directors at fair market value on the date
of the grant. Proceeds from the exercise of common stock options are credited
to shareholders' equity at the date the options are exercised. There are no
charges or credits to income with respect to these options.
 
                                      F-7
<PAGE>
 
  Earnings per Share: Earnings per share is based on the weighted average
number of shares outstanding during each year and the assumed exercise of
dilutive stock options (less the number of treasury shares assumed to be
purchased with the proceeds using the average market price of the Company's
common stock for primary earnings per share and the higher of the ending
market price or average market price for fully diluted earnings per share).
 
  Cash and Short-Term Investments: The Company considers all highly liquid
investments with a maturity of 90 days or less when purchased to be cash and
short-term investments.
 
  Capitalized Software Development Costs: In 1994, the Company commenced
development of software to be included in certain of its new products.
Software development costs have been capitalized and will be amortized to the
cost of product revenues over the estimated economic lives of the products
that will include such software. The products that include such software are
expected to be introduced for sale during the year ending June 30, 1996. Total
capitalized software development costs were $675,000, $1,982,000 and
$2,552,000 at June 30, 1994, June 30, 1995, and December 31, 1995,
respectively.
 
NOTE B--SHORT-TERM INVESTMENTS
 
  Short-term investments consist primarily of money market accounts and
certificates of deposit issued by large commercial banks located in the United
States and Hong Kong. These investments are readily convertible to cash and
are stated at cost which approximates market.
 
NOTE C--INVENTORIES
 
  Inventories consisted of the following:
 
<TABLE>
<CAPTION>
                                                     JUNE 30         DECEMBER 31
                                                 1994       1995        1995
                                              ---------- ----------- -----------
                                                                     (UNAUDITED)
   <S>                                        <C>        <C>         <C>
   Raw materials............................. $5,268,039 $ 7,960,573 $12,821,590
   Work-in-process...........................    818,400   1,105,010   1,496,414
   Finished goods............................  1,747,316   4,071,081   2,982,718
                                              ---------- ----------- -----------
                                              $7,833,755 $13,136,664 $17,300,722
                                              ========== =========== ===========
</TABLE>
 
                                      F-8
<PAGE>
 
NOTE D--LONG TERM OBLIGATIONS
 
  Long-term obligations consisted of:
 
<TABLE>
<CAPTION>
                                                     JUNE 30        DECEMBER 31
                                                 1994       1995       1995
                                              ---------- ---------- -----------
                                                                    (UNAUDITED)
   <S>                                        <C>        <C>        <C>
   1989 Economic Development Revenue Bonds,
    variable interest rate (effective rate
    of 6.38%, including letter of credit and
    remarketing fees, at December 31, 1995),
    principal payable in annual installments
    of $100,000 through 1996 and $200,000
    thereafter through 2004.................  $2,000,000 $1,900,000 $1,800,000
   Industrial Development Authority Loan,
    payable in monthly installments of
    $13,777, including interest at 3%,
    through June 2005.......................   1,528,469  1,407,312  1,345,358
   Redevelopment Authority Loan, payable in
    quarterly installments of $14,533,
    including interest at 5%, through June
    2005....................................     514,172    481,137    463,994
   Capital lease obligation, payable in
    quarterly installments of $19,834
    including interest at a floating rate
    (2.25% at December 31, 1995) through
    June 1997...............................     201,353    131,581     95,245
   Redevelopment Authority Loan, payable in
    monthly installments of $6,296,
    including interest at 2%, through July
    2009....................................     978,395    921,894    893,217
   Capital lease obligation, payable in
    monthly installments of $1,860,
    including interest at 4.60%, through
    January 1996............................      36,917     13,889      2,005
   Industrial Development Authority Loan,
    payable in monthly installments of
    $7,289, including interest at 2%,
    through March 2010......................         -0-  1,132,240  1,099,487
   Capital lease obligation, payable in
    monthly installments of $2,284,
    including interest at 4.62%, through
    April 1997..............................         -0-     48,093     35,376
                                              ---------- ---------- ----------
                                               5,259,306  6,036,146  5,734,682
   Less current portion.....................     404,866    498,150    492,729
                                              ---------- ---------- ----------
                                              $4,854,440 $5,537,996 $5,241,953
                                              ========== ========== ==========
</TABLE>
 
  The Economic Development Revenue Bonds, the Industrial Development Authority
Loans, and the Redevelopment Authority Loans are secured by mortgages upon the
Company's headquarters and manufacturing facility in Murrysville,
Pennsylvania. Proceeds from the bonds and the loans were used to finance the
construction and expansion of the facility. The Company is required to meet
certain financial covenants in connection with these obligations, including
those relating to current ratio, ratio of total liabilities to tangible net
worth, and minimum tangible net worth. At June 30, 1994, June 30, 1995 and
December 31, 1995 the Company was in compliance with these covenants.
 
  The Company is a party to capital lease agreements with commercial banks
relating to certain of its fixed assets. The lease terms are two to four years
with options for the Company to purchase the assets at the end of the lease.
Assets under capital leases at June 30, 1995 and December 31, 1995 consist of
machinery and equipment and office equipment with a net book value of $149,228
and $94,863, respectively. Capital lease obligations incurred are considered
non-cash items and, accordingly, are not
 
                                      F-9
<PAGE>
 
considered in the consolidated statements of cash flows. Capital lease
obligations incurred were $52,265 for the year ended June 30, 1995, and there
were none incurred for the six month period ended December 31, 1995.
 
  The Company also has $1,250,000 available under a line of credit facility
with a commercial bank at the bank's prime rate until the expiration date of
October 31, 1996. Borrowings made on this line of credit are unsecured. The
Company is required to meet certain financial covenants under this line of
credit relating to current ratio, the ratio of total liabilities to tangible
net worth and a minimum tangible net worth. There were no outstanding
borrowings under this credit facility.
 
  Scheduled maturities of long-term obligations for the six months ended June
30, 1996 and the next five years are as follows:
 
 
<TABLE>
<CAPTION>
                            MATURITIES OF MINIMUM LEASE  INTEREST ON
                                LONG-     PAYMENTS UNDER   CAPITAL
                              TERM DEBT   CAPITAL LEASES   LEASES      TOTAL
                            ------------- -------------- ----------- ----------
   <S>                      <C>           <C>            <C>         <C>
   Six months ended June
   30, 1996................  $  143,193      $ 55,381      $(3,043)  $  195,531
   1997....................     492,623        82,343       (2,055)     572,911
   1998....................     500,847           -0-          -0-      500,847
   1999....................     509,516           -0-          -0-      509,516
   2000....................     518,370           -0-          -0-      518,370
   2001....................     527,507           -0-          -0-      527,507
   Thereafter..............   2,910,000           -0-          -0-    2,910,000
                             ----------      --------      -------   ----------
   Total...................  $5,602,056      $137,724      $(5,098)  $5,734,682
                             ==========      ========      =======   ==========
</TABLE>
 
  Interest paid was $180,421, $167,718 and $194,220 for the years ended June
30, 1993, 1994, and 1995, respectively and was $93,790 and $100,892 for the
six months ended December 31, 1994 and 1995, respectively.
 
NOTE E--INCOME TAXES
 
<TABLE>
<CAPTION>
                                                    YEAR ENDED JUNE 30
                                                1993         1994       1995
                                             -----------  ---------- ----------
   <S>                                       <C>          <C>        <C>
   Income taxes consisted of:
    Current:
     Federal................................ $ 3,988,590  $1,509,015 $5,379,275
     Foreign................................      94,746      60,112    197,943
     State..................................   1,024,051     314,214  1,459,538
                                             -----------  ---------- ----------
                                               5,107,387   1,883,341  7,036,756
    Deferred:
     Federal................................  (1,071,993)    151,826   (165,132)
     State..................................    (318,188)     39,938    (13,687)
                                             -----------  ---------- ----------
                                              (1,390,181)    191,764   (178,819)
                                             -----------  ---------- ----------
     TOTAL INCOME TAXES..................... $ 3,717,206  $2,075,105 $6,857,937
                                             ===========  ========== ==========
</TABLE>
 
                                     F-10
<PAGE>
 
  The difference between the statutory U.S. federal income tax rate and the
Company's effective income tax rate is explained below:
 
<TABLE>
<CAPTION>
                                                        YEAR ENDED JUNE 30
                                                        1993     1994     1995
                                                       ------   ------   ------
   <S>                                                 <C>      <C>      <C>
   Statutory federal income tax rate..................     34%      34%      35%
   Increases (decreases):
     State taxes......................................      4        3        5
     Tax credits utilized.............................     (3)      (7)      (3)
     Tax on foreign earnings at less than the
      statutory rate..................................     (5)      (5)     -0-
     Other items, net, none of which individually
      exceeds 5% of federal income taxes at
      statutory rates.................................      3        5      -0-
                                                       ------   ------   ------
      EFFECTIVE INCOME TAX RATE.......................     33%      30%      37%
                                                       ======   ======   ======
</TABLE>
 
  Deferred income tax assets consisted of the following:
 
<TABLE>
<CAPTION>
                                                                 JUNE 30
                                                             1994       1995
                                                          ---------- ----------
   <S>                                                    <C>        <C>
     Deferred compensation............................... $  204,546 $      -0-
     Inventories.........................................    418,607    600,513
     Allowance for bad debts.............................    210,720    245,804
     Depreciation........................................    617,944    635,128
     Accruals............................................    555,645    673,926
     Other...............................................     14,314     45,224
                                                          ---------- ----------
     Total............................................... $2,021,776 $2,200,595
                                                          ========== ==========
</TABLE>
 
  Income before income taxes consisted of the following:
 
<TABLE>
<CAPTION>
                                                      YEAR ENDED JUNE 30
                                                 1993        1994       1995
                                              ----------- ---------- -----------
   <S>                                        <C>         <C>        <C>
     United States........................... $ 9,038,558 $5,578,476 $17,935,537
     Foreign.................................   2,057,579  1,237,873     599,427
                                              ----------- ---------- -----------
     Total................................... $11,096,137 $6,816,349 $18,534,964
                                              =========== ========== ===========
</TABLE>
 
  Undistributed earnings of the foreign subsidiary on which no U.S. income tax
has been provided amounted to $9,537,838 at June 30, 1995.
 
  The Company's operation in the Peoples Republic of China is affected by an
income tax holiday. Net income increased by $568,955 ($0.03 per share),
$345,564 ($0.02 per share), and $339,851 ($0.02 per share) for the years ended
June 30, 1993, 1994, and 1995 respectively, as a result of this income tax
holiday. Under the terms of the income tax holiday, the Company's operation in
the Peoples Republic of China paid no income tax for the years ended June 30,
1993 and 1994. The income tax rate increased to 7.5% for the year ended June
30, 1995 and will remain at 7.5% for years ending June 30, 1996 and 1997 and
will then increase to 15% for years thereafter. The applicable statutory
income tax rate in the Peoples Republic of China is approximately 33%.
 
  Income taxes paid were $4,918,719, $4,620,928, and $4,335,733 for the years
ended June 30, 1993, 1994, and 1995, respectively and were $3,036,495 and
$4,240,132 for the six months ended December 31, 1994 and 1995, respectively.
 
                                     F-11
<PAGE>
 
NOTE F--STOCK OPTION PLANS
 
  The Company has the 1984 Incentive Stock Option Plan (the "1984 Plan") which
provided options to eligible employees to purchase common stock over five or
ten years at fair market value at the time of the grant. Options become
exercisable one year from the date of the grant at a rate not exceeding 25%
per year (subject to possible acceleration in certain circumstances). The
Company reserved shares of its common stock and authorized options to purchase
3,400,000 shares of common stock under the 1984 Plan. The 1984 Plan terminated
as to new grants on December 31, 1993.
 
  Pertinent information regarding options under the 1984 Plan follows:
 
<TABLE>
<CAPTION>
                                             OPTION SHARES
                             -------------------------------------------------
                                                              SIX MONTHS ENDED
                                  YEAR ENDED JUNE 30            DECEMBER 31
                               1993       1994       1995           1995
                             ---------  ---------  ---------  ----------------
                                                                (UNAUDITED)
   <S>                       <C>        <C>        <C>        <C>
   Outstanding at beginning
   of period................ 1,330,562  1,277,860  1,298,466      929,314
   Granted:
    $ 8.25 per share........     5,000        -0-        -0-          -0-
    $ 8.32 per share........       -0-      2,000        -0-          -0-
    $ 9.25 per share........       -0-    132,000        -0-          -0-
    $10.07 per share........   104,362        -0-        -0-          -0-
    $10.38 per share........     1,000        -0-        -0-          -0-
   Exercised:
    $ 1.00 per share........   (12,400)   (10,100)    (2,000)        (400)
    $ 1.38 per share........    (6,400)   (46,600)   (80,000)      (2,000)
    $ 2.82 per share........    (9,800)   (11,800)   (18,300)      (2,956)
    $ 4.50 per share........   (48,920)   (34,610)  (187,250)     (77,972)
    $ 5.41 per share........       -0-        -0-       (600)         -0-
    $ 6.22 per share........   (11,426)    (4,420)   (20,696)      (6,787)
    $ 8.32 per share........       -0-        -0-        -0-         (500)
    $10.07 per share........       -0-        -0-     (1,580)      (1,600)
   Canceled.................   (74,118)    (5,864)   (58,726)      (2,100)
                             ---------  ---------  ---------      -------
   Outstanding at end of
   period................... 1,277,860  1,298,466    929,314      834,999
                             =========  =========  =========      =======
   Exercisable at end of
   period...................   911,866    802,758    749,134      738,354
                             =========  =========  =========      =======
   Shares available for
   future grant.............   191,236        -0-        -0-          -0-
                             =========  =========  =========      =======
</TABLE>
 
  The Company also has the 1992 Stock Incentive Plan (the "1992 Plan") which
was approved by the Company's shareholders in November 1992. Under the 1992
Plan, eligible employees may receive options to purchase common stock over ten
years at option prices that may not be less than fair market value at the date
of grant. Stock options granted under the 1992 Plan become exercisable no
sooner than six months from grant date (subject to possible acceleration under
certain circumstances) and such options may include cash payment rights.
Eligible employees may also receive awards of restricted shares of the
Company's common stock under the 1992 Plan. The aggregate number of options
and restricted shares which may be issued under the 1992 Plan is 1,000,000.
Options to purchase 106,960 shares at $9.88 per share were granted during the
year ended June 30, 1994 and options to purchase 52,752 shares at $16.25 per
share and 5,000 shares at $13.38 per share were granted during the year ended
June 30, 1995. Options to purchase 2,575 shares at $9.88 per share were
exercised during the year ended June 30, 1995. Options to purchase 60 shares
at $9.88 per share were exercised during the six months ended December 31,
1995. Options to purchase 5,050 shares were canceled during the year ended
June 30, 1995. Options to
 
                                     F-12
<PAGE>
 
purchase 1,000 shares were cancelled during the six months ended December 31,
1995. At June 30, 1995, total options to purchase 157,087 shares were
outstanding under the 1992 Plan, of which 23,628 were exercisable. At December
31, 1995, total options to purchase 156,027 shares were outstanding under the
1992 Plan, of which 25,019 were exercisable.
 
  In connection with an initial public offering that was completed in June
1988, an officer of the Company exchanged his rights in certain non-patented
products for an option to purchase 400,000 shares of common stock at a price
of $1.88 per share. The option to purchase 80,000 of the shares was
exercisable immediately, and options to purchase 80,000 shares became
exercisable on each of June 30, 1989, 1990, 1991, and 1992. The option will be
exercisable for a maximum period of ten years after grant. Options to purchase
15,000 shares were exercised during the six months ended December 31, 1995.
 
  In November 1991, the Company's shareholders approved the adoption of the
1991 Non-Employee Directors' Stock Option Plan (the "Directors' Plan"). The
aggregate number of shares which may be issued and as to which grants of
options may be made under the Directors' Plan is 200,000. All options under
the Directors' Plan are granted to members of the Company's Board of Directors
who are not employees of the Company. Such options are granted at fair market
value on the date of grant.
 
  Under the provisions of the Directors' Plan, in November 1991 each of the
four non-employee directors who had been non-employee directors for at least
two years prior to the approval of the Directors' Plan received a one-time
option to purchase 10,000 shares at an option price of $6.13 per share. In
addition, each of the five non-employee directors (regardless of years of
service) received an option to purchase 5,100 shares at an option price of
$6.13 per share. In November 1992, each non-employee director received an
option to purchase 5,100 shares at an option price of $10.63 per share. In
November 1993, each non-employee director received an option to purchase 5,100
shares at an option price of $9.50 per share. In November 1994, each non-
employee director received an option to purchase 5,100 shares at an option
price of $11.25 per share. In November 1995, each non-employee director
received an option to purchase 5,100 shares at $19.69 per share. In the
future, each non-employee director will receive an option to purchase an
additional 5,100 shares on the third business day following the Company's
annual meeting of shareholders. These grants will continue until options for
all the share available under the Directors' Plan have been granted.
 
  The one time option granted to non-employee directors with more than two
years of service was exercisable in full three months after the date of grant.
For all other options granted under the Directors' Plan, 25% of the shares are
exercisable one year after the date of the grant, 25% are exercisable two
years after the date of grant, and the remaining 50% are exercisable three
years after the date of grant. All options granted under the Directors' Plan
expire ten years after the date of grant. Options to purchase 2,000 shares at
$6.13 per share were exercised during the year ended June 30, 1995.
 
 
                                     F-13
<PAGE>
 
NOTE G--FINANCIAL INFORMATION BY GEOGRAPHIC AREAS AND MAJOR CUSTOMERS
 
<TABLE>
<CAPTION>
                                                                    SIX MONTHS ENDED
                                  YEAR ENDED JUNE 30                   DECEMBER 31
                             1993         1994         1995         1994         1995
                         ------------  -----------  -----------  -----------  -----------
                                                                       (UNAUDITED)
<S>                      <C>           <C>          <C>          <C>          <C>
NET SALES
 Hong Kong:
  Unaffiliated
   customers............ $  1,157,402  $ 1,462,292  $ 1,720,248  $   983,886  $ 1,114,715
  Interarea transfers...    9,281,661    7,312,399    8,430,823    3,945,241    4,112,123
                         ------------  -----------  -----------  -----------  -----------
                           10,439,063    8,774,691   10,151,071    4,929,127    5,226,838
 United States:
  Unaffiliated
   customers............   68,128,211   76,708,736   97,730,086   44,553,726   55,801,079
  Interarea transfers...      794,124      543,883      750,744      642,446      311,631
                         ------------  -----------  -----------  -----------  -----------
                           68,922,335   77,252,619   98,480,830   45,196,172   56,112,710
 Eliminations--
   transfers............  (10,075,785)  (7,856,282)  (9,181,568)  (4,587,687)  (4,423,754)
                         ------------  -----------  -----------  -----------  -----------
 Net Sales.............. $ 69,285,613  $78,171,028  $99,450,333  $45,537,612  $56,915,794
                         ============  ===========  ===========  ===========  ===========
OPERATING PROFIT
 Hong Kong.............. $  2,359,200  $ 1,538,966  $   877,325  $   649,632  $   431,162
 United States..........   12,411,549    9,315,357   22,239,437    9,416,007   13,363,737
                         ------------  -----------  -----------  -----------  -----------
Operating Profit........   14,770,749   10,854,323   23,116,762   10,065,639   13,794,899
 Corporate expense......    3,498,769    3,866,751    4,388,248    1,848,429    2,664,403
 Interest expense.......      175,843      171,223      193,550       95,943      100,595
                         ------------  -----------  -----------  -----------  -----------
Income Before Income
 Taxes.................. $ 11,096,137  $ 6,816,349  $18,534,964  $ 8,121,267  $11,029,901
                         ============  ===========  ===========  ===========  ===========
</TABLE>
 
  Interarea transfers are accounted for at prices comparable to unaffiliated
customer sales reduced by an approximation of costs not incurred on internal
sales.
 
  The Company sells to distributors in the health care industry and closely
monitors the extension of credit to both domestic and foreign customers,
including obtaining and analyzing credit applications for all new accounts and
maintaining an active program to contact customers promptly when invoices
become past due. Sales to one customer accounting for 10% or more of net sales
were $6,711,000 for the year ended June 30, 1993. Sales to another customer
(accounting for 10% or more of net sales) were $8,569,000 for the year ended
June 30, 1994 and $10,955,000 for the year ended June 30, 1995. Sales to the
same customer (which merged with another customer in August 1995) were
$5,160,000 and $9,595,000 for the six months ended December 31, 1994 and 1995.
 
 
                                     F-14
<PAGE>
 
  Additional information regarding assets and liabilities by geographic area
follows:
 
<TABLE>
<CAPTION>
                                                    JUNE 30         DECEMBER 31
                                               1994        1995        1995
                                            ----------- ----------- -----------
                                                                    (UNAUDITED)
   <S>                                      <C>         <C>         <C>
   IDENTIFIABLE ASSETS
    Hong Kong.............................. $ 3,773,038 $ 5,597,154 $ 6,591,846
    United States..........................  40,738,352  54,113,917  65,366,160
                                            ----------- ----------- -----------
                                             44,511,390  59,711,071  71,958,006
    Corporate assets (primarily cash and
      short-term investments)..............  14,405,830  18,327,499  11,993,503
                                            ----------- ----------- -----------
     Total Assets.......................... $58,917,220 $78,038,570 $83,951,509
                                            =========== =========== ===========
   TOTAL ASSETS
    Hong Kong.............................. $ 9,328,819 $11,140,130 $11,497,391
    United States..........................  49,588,401  66,898,440  72,454,118
                                            ----------- ----------- -----------
                                            $58,917,220 $78,038,570 $83,951,509
                                            =========== =========== ===========
   TOTAL LIABILITIES
    Hong Kong.............................. $ 1,548,270 $ 2,712,833 $ 2,905,218
    United States..........................  13,144,841  16,956,541  15,496,223
                                            ----------- ----------- -----------
                                            $14,693,111 $19,669,374 $18,401,441
                                            =========== =========== ===========
</TABLE>
 
NOTE H--RETIREMENT PLAN
 
  The Company has a Retirement Savings Plan which is available to all United
States employees. Employees may contribute up to 15% (to a defined maximum) of
their compensation. The Company matches employee contributions (up to 3% of
each employee's compensation) at a 100% rate and may make discretionary
contributions. The Company contributed $169,000, $357,000 and $420,000 to the
plan for the years ended June 30, 1993, 1994, and 1995, respectively and
$191,000 and $292,000 for the six months ended December 31, 1994 and 1995.
 
  The Company's current benefit program does not provide postretirement
benefits to employees.
 
NOTE I--DISTRIBUTION AGREEMENT
 
  In June 1991, the Company entered into a distribution agreement with the
owner of a non-invasive ventilator product. Under the terms of the agreement,
the Company had the exclusive United States distribution rights for a product
that was to be produced by the manufacturer. The initial term of the agreement
was three years with provisions to extend the term for additional periods. A
six-month extension of the initial term expired December 31, 1994. As part of
the agreement, the Company paid $5,000,000 to the manufacturer, representing a
partial prepayment for the product to be sold by the Company during the
initial term of the agreement.
 
  Because of the manufacturer's repeated failures to meet stipulated
requirements, particularly in assuring compliance with Good Manufacturing
Practice as required by FDA law and regulations, and the Company's resulting
inability to introduce the product for sale, in June 1994 the Company
concluded that the ultimate realizability of the prepayment was no longer
probable. Accordingly, during the quarter ended June 30, 1994, the Company
recorded nonrecurring charges totaling $5,120,000 to write off the remaining
balance on the prepayment and the net book value of units that had been
purchased.
 
 
                                     F-15
<PAGE>
 
NOTE J--DISCONTINUANCE OF PRODUCT LINE
 
  In November 1993, the Company discontinued the production and sale of its
BagEasy line of disposable manual resuscitators and recalled all remaining
BagEasy products in distribution channels and customer inventories.
Accordingly, during the quarter ended September 30, 1993, the Company recorded
nonrecurring charges of $1,966,000 which included provisions for write-offs of
inventories and fixed assets, the satisfaction of purchase order and
compensation commitments, and costs associated with the recall.
 
NOTE K--JOINT VENTURE
 
  During the quarter ended December 31, 1993, the Company completed a 51%
equity investment, totaling approximately $600,000, in a joint venture with a
company located in the Peoples Republic of China. The Company believes that
this joint venture will facilitate the wider distribution of the Company's
products in the Peoples Republic of China and will also manufacture and
distribute medical products and over-the-counter medicines in that country.
The joint venture is not expected to be fully operational until the second
half of fiscal year 1996.
 
NOTE L--ACQUISITION
 
  On April 6, 1995, the Company acquired Vitalog Monitoring, Inc., a
California company that designs, manufactures and markets sleep monitoring and
diagnostic equipment. This combination was treated for financial reporting
purposes as a purchase. Vitalog's results of operations have been included in
the Company's consolidated financial statements beginning April 7, 1995.
Vitalog's operations were not material in relation to the Company's
consolidated financial statements and pro forma financial information has
therefore not been presented.
 
  Consideration paid was $745,000 in cash (including transactions costs) and
85,094 shares of the Company's common stock valued at $1,276,000 in exchange
for the outstanding stock of Vitalog, related patents, and non-competition
agreements. The cost in excess of net assets acquired was $1,887,000 and is
being amortized on a straight line basis over 12 years.
 
NOTE M--CONTINGENCY
 
  The Company is a party to an action filed in a federal District Court in
January 1995 in which a competitor alleges that the Company's sale in the
United States of certain products infringes three of the competitor's patents.
In its response to the action, the Company has denied the allegations and has
separately sought a declaratory judgment that the claims under the patents are
invalid and that the Company does not infringe upon the patents. Discovery in
the case is continuing. The Company believes that none of its products
infringe any of the patents in question in the event that any one or more of
such patents should be held to be valid and enforceable, and it intends to
vigorously defend this position.
 
 
                                     F-16
<PAGE>
 
NOTE N--QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)
 
  Following are the unaudited quarterly results of operations for the fiscal
years ended June 30, 1994, 1995 and 1996:
 
<TABLE>
<CAPTION>
                                                     1994
                               ------------------------------------------------
                                              THREE MONTHS ENDED
                               SEPTEMBER 30 DECEMBER 31  MARCH 31     JUNE 30
                               ------------ ----------- ----------- -----------
   <S>                         <C>          <C>         <C>         <C>
   Net Sales.................  $18,224,518  $18,600,037 $19,307,611 $22,038,862
   Gross Profit..............    9,989,061   10,099,895  10,704,488  12,547,276
   Nonrecurring Charges......    1,966,085          -0-         -0-   5,120,000
   Net Income (Loss).........      873,481    2,063,884   2,244,295    (440,416)
   Earnings (Loss) Per Share.  $      0.05  $      0.12 $      0.13 $     (0.03)
<CAPTION>
                                                     1995
                               ------------------------------------------------
                                              THREE MONTHS ENDED
                               SEPTEMBER 30 DECEMBER 31  MARCH 31     JUNE 30
                               ------------ ----------- ----------- -----------
   <S>                         <C>          <C>         <C>         <C>
   Net Sales.................  $21,669,809  $23,867,803 $25,599,736 $28,312,985
   Gross Profit..............   12,199,078   13,679,172  14,485,883  16,009,042
   Net Income................    2,420,016    2,696,380   3,071,740   3,488,891
   Earnings Per Share........  $      0.14  $      0.15 $      0.17 $      0.20
<CAPTION>
                                                     1996
                               ------------------------------------------------
                                              THREE MONTHS ENDED
                               SEPTEMBER 30 DECEMBER 31  MARCH 31     JUNE 30
                               ------------ ----------- ----------- -----------
   <S>                         <C>          <C>         <C>         <C>
   Net Sales.................  $26,674,675  $30,241,119     --          --
   Gross Profit..............   15,160,165   16,860,310     --          --
   Net Income................    3,219,272    3,508,968     --          --
   Earnings Per Share........  $      0.18  $      0.20     --          --
</TABLE>
 
                                     F-17
<PAGE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
  NO PERSON HAS BEEN AUTHORIZED IN CONNECTION WITH THE OFFERING MADE HEREBY TO
GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS
PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST NOT
BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY, THE SELLING
STOCKHOLDERS OR ANY UNDERWRITER. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER
TO SELL OR A SOLICITATION OF ANY OFFER TO BUY ANY OF THE SECURITIES OFFERED
HEREBY TO ANY PERSON OR BY ANYONE IN ANY JURISDICTION IN WHICH IT IS UNLAWFUL
TO MAKE SUCH OFFER OR SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS
NOR ANY SALE MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY
IMPLICATION THAT THE INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY DATE
SUBSEQUENT TO THE DATE HEREOF.
                                 ------------
                               TABLE OF CONTENTS
 
                                                                           Page
<TABLE>
<S>                                                                          <C>
Available Information......................................................    2
Additional Information.....................................................    2
Prospectus Summary.........................................................    3
Risk Factors...............................................................    6
Price Range of Common Stock................................................    8
Use of Proceeds............................................................    8
Dividend Policy............................................................    8
Capitalization.............................................................    9
Selected Financial Data....................................................   10
Management's Discussion and Analysis of Results of Operations and Financial
 Condition.................................................................   11
Business...................................................................   18
Management.................................................................   33
Principal and Selling Stockholders.........................................   35
Underwriting...............................................................   37
Legal Matters..............................................................   38
Experts....................................................................   38
Incorporation of Certain Documents by Reference............................   38
Index to Consolidated Financial Statements.................................  F-1
</TABLE>
                                 ------------
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                               3,030,000 Shares
 
                          [LOGO of Respironics, Inc.]
 
                                 Common Stock
 
                                 ------------
                                  PROSPECTUS
                                 ------------
 
                              Alex. Brown & Sons
                                 INCORPORATED
 
                                Cowen & Company
 
                                 Parker/Hunter
                                 INCORPORATED
 
                                        , 1996
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
  The following table sets forth the expenses in connection with the offering
described in this Registration Statement. All such amounts (except the SEC
Registration Fee, the National Association of Securities Dealers, Inc. filing
fee and the Nasdaq National Market listing fee) are estimated:
 
<TABLE>
   <S>                                                                  <C>
   Securities and Exchange Commission registration fee.................  $25,233
   National Association of Securities Dealers, Inc. filing fee.........    7,817
   Nasdaq National Market listing fee..................................   17,500
   Printing, postage and mailing costs.................................  175,000
   Marketing costs.....................................................   30,000
   Accounting fees and expenses........................................   35,000
   Legal fees and expenses, including blue sky.........................   65,000
   Blue sky fees and expenses..........................................   10,000
   Transfer agent and registar fees and expenses.......................    5,000
   Miscellaneous.......................................................   29,450
                                                                        --------
     Total............................................................. $400,000
                                                                        ========
</TABLE>
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  1. Section 145 of Delaware General Corporation Law. Section 145 of the
Delaware General Corporation Law provides that a corporation may indemnify any
person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of the corporation) by reason of the fact that he is or was a director,
officer, employee or agent of the corporation, or is or was serving at the
request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
against expense (including attorneys' fees), judgments, fines and amounts paid
in settlement actually and reasonably incurred by him in connection with such
action, suit or proceeding if he acted in good faith and in a manner he
reasonably believed to be in or not opposed to the best interests of the
corporation, and, with respect to any criminal action or proceeding, had no
reasonable cause to believe his conduct was unlawful. The termination of any
action, suit or proceeding by judgment, order, settlement, conviction, or upon
plea of nolo contendere of its equivalent, shall not, of itself, create a
presumption that the person did not act in good faith and in a manner which he
reasonably believed to be in or not opposed to the best interests of the
corporation, and, with respect to any criminal action or proceeding, had
reasonable cause to believe that his conduct was unlawful.
 
  Section 145 also provides that a corporation may indemnify any person who
was or is a party or is threatened to be made a party to any threatened,
pending or completed action or suit by or in the right of the corporation to
procure a judgment in its favor by reason of the fact that he is or was a
director, officer, employee or agent of the corporation, or is or was serving
at the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
against expenses (including attorneys' fees) actually and reasonably incurred
by him in connection with the defense or settlement of such action or suit if
he acted in good faith and in a manner he reasonably believed to be in or not
opposed to the best interests of the corporation and except that no
indemnification shall be made in respect of any claim, issue or matter as to
which such person shall have been adjudged to be liable to the corporation
unless and only to the extent that the Court of Chancery or
 
                                     II-1
<PAGE>
 
the court in which such action or suit was brought shall determine upon
application that, despite the adjudication of liability but in view of all the
circumstances of the case, such person is fairly and reasonably entitled to
indemnity for such expenses which the Court of Chancery or such other court
shall deem proper.
 
  To the extent that a director, officer, employee or agent of the corporation
has been successful on the merits or otherwise in defense of any action, suit
or proceeding referred to above, or in defense of any claim, issue or matter
therein, such person shall be indemnified against expenses (including
attorneys' fees) actually and reasonably incurred by such person in connection
therewith.
 
  Any such indemnification (unless ordered by a court) shall be made by the
corporation only as authorized in the specific case upon a determination that
indemnification of the director, officer, employee or agent is proper in the
circumstances because such person has met the applicable standard of conduct
set forth above. Such determination shall be made:
 
  (1) by the Board of Directors by a majority vote of a quorum consisting of
  directors who were not parties to such action, suit or proceeding; or
 
  (2) if such a quorum is not obtainable, or, even if obtainable a quorum of
  disinterested directors so directs, by independent legal counsel in a
  written opinion; or
 
  (3) by the stockholders.
 
  Section 145 permits a Delaware business corporation to purchase and maintain
insurance on behalf of any person who is or was a director, officer, employee
or agent of the corporation, or is or was serving at the request of the
corporation as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, against any liability
asserted against such person and incurred by him in any such capacity, or
arising out of his status as such, whether or not the corporation would have
the power to indemnify such person against such liability.
 
  2. Section 102(b)(7) of Delaware General Corporation Law. Section 102(b)(7)
of the Delaware General Corporation Law provides that a corporation may set
forth in its Certificate of Incorporation a provision eliminating or limiting
the personal liability of a director to the corporation or its stockholders
for monetary damages for breach of fiduciary duty as a director, provided that
such provision shall not eliminate or limit the liability of a director (i)
for any breach of the director's duty of loyalty to the corporation or its
stockholders, (ii) for acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (iii) under Section 174
of such General Corporation Law regarding the unlawful payment of dividends or
approval of stock repurchases or redemptions and (iv) for any transaction from
which the director derived an improper personal benefit. No such provision
shall eliminate or limit the liability of a director for any act or omission
occurring prior to the date when such provision becomes effective (in the case
of the Company, May 8, 1987). As noted in 3 below, the Company's Certificate
of Incorporation includes a provision contemplated by Section 102(b)(7) of the
Delaware General Corporation Law.
 
  3. Certificate of Incorporation Provision of Liability of Directors. The
Company's Certificate of Incorporation limits the liability of its directors
to the fullest extent permitted under the Delaware General Corporation Law.
The Company's directors are not liable for monetary damages for breach of
their fiduciary duty as directors, except for liability for any breach of the
directors' duty of loyalty to the Company or its stockholders, for acts or
omissions not in good faith or which involve intentional misconduct or a
knowing violation of law, for payment of dividends or approval of stock
repurchases or redemptions that are unlawful under Delaware law, and for any
transactions from which a director derived an improper personal benefit. This
provision does not eliminate the duty of care and, in appropriate
circumstances, equitable remedies such as injunctive or other forms of non-
monetary relief available under Delaware law.
 
                                     II-2
<PAGE>
 
  4. Certificate of Incorporation Provisions on Indemnity. The Company's
Certificate of Incorporation provides that the Company shall indemnify its
directors, officers, employees and agents against claims arising out of their
actions as agents of the Company and will advance expenses of defending
against such claims. The Certificate of Incorporation requires the Company to
advance litigation expenses in the case of shareholder derivative or other
actions against an undertaking by the officer or director to repay such
advances if it is ultimately determined that the officer or director is not
entitled to indemnification. The Certificate of Incorporation further provides
that the Company may obtain directors' and officers' liability insurance on
such terms and conditions acceptable to the Company.
 
  5. Director and Officer Liability Insurance. The Company has purchased
director and officer liability insurance. Such insurance covers its directors
and officers with respect to liability which they may incur in connection with
their serving as such. Under this type of insurance, the Company will receive
reimbursement for amounts as to which the directors and officers would be
indemnified. The insurance also provides certain additional coverage for the
directors and officers against certain liability even though such liability
would not be subject to indemnification.
 
ITEM 16. EXHIBITS.
 
  An Exhibit Index, containing a list of all exhibits filed with this
Registration Statement, is included on page II-7.
 
ITEM 17. UNDERTAKINGS.
 
  (b) Filings incorporating subsequent Exchange Act Documents by Reference.
 
  The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the 1933 Act, each filing of the registrant's
annual report pursuant to section 13(a) or section 15(d) of the 1934 Act that
is incorporated by reference in the registration statement shall be deemed to
be a new registration statement relating to the securities offered herein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.
 
  (h) Request for Acceleration of Effective Date.
 
  Insofar as indemnification for liabilities arising under the 1933 Act may be
permitted to directors, officers and controlling persons of the registrant
pursuant to the provisions described under Item 15 above, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
1933 Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless
in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the 1933
Act and will be governed by the final adjudication of such issue.
 
  (i) Rule 430A Offerings.
 
  The undersigned registrant hereby undertakes that:
 
    (1) For purposes of determining any liability under the Securities Act of
  1933, the information omitted from the form of prospectus filed as part of
  this registration statement in reliance upon Rule 430A and contained in a
  form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or
  (4) or 497(h) under the Securities Act shall be deemed to be part of this
  registration statement as of the time it was declared effective.
 
                                     II-3
<PAGE>
 
                                  SIGNATURES
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
CERTIFIES THAT IT HAS REASONABLE GROUNDS TO BELIEVE THAT IT MEETS ALL OF THE
REQUIREMENTS FOR FILING ON FORM S-3 AND HAS DULY CAUSED THIS REGISTRATION
STATEMENT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY
AUTHORIZED, IN MURRYSVILLE, PENNSYLVANIA, ON THE 22ND DAY OF FEBRUARY, 1996.
 
                                       Respironics, Inc.
 
                                                   
                                       By:      /s/ Dennis S. Meteny
                                          --------------------------------
                                            Dennis S. Meteny, President
                                            and Chief Executive Officer
 
                               POWER OF ATTORNEY
 
  KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Dennis S. Meteny, Daniel J. Bevevino and James
C. Woll, and each of them, his true and lawful attorneys-in-fact and agents,
with full power of substitution and resubstitution, for him and in his name,
place and stead, in any and all capacities, to sign any and all amendments
(including post-effective amendments) to this registration statement, and to
file the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done,
as fully to all intents and purposes as he might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents or any of
them, or their or his substitutes, may lawfully do or cause to be done by
virtue thereof.
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS
REGISTRATION STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE
CAPACITIES AND AS OF FEBRUARY 22, 1996.
 
<TABLE>
<CAPTION>
          NAME                                 TITLE
          ----                                 -----
<S>                       <C>
 /s/ Daniel J. Bevevino       Chief Financial Officer and Controller
- ------------------------   (Principal Financial and Accounting Officer)
   Daniel J. Bevevino

                                             Director
- ------------------------
    Daniel P. Barry

 /s/ Douglas A. Cotter                       Director
- ------------------------
   Douglas A. Cotter

  /s/ James H. Hardie                        Director
- ------------------------
    James H. Hardie

  /s/ Joseph C. Lawyer                       Director
- ------------------------
    Joseph C. Lawyer

 /s/ George J. Magovern                      Director
- ------------------------
George J. Magovern, M.D.

 /s/ Gerald E. McGinnis         Chairman of the Board and Director
- ------------------------
   Gerald E. McGinnis

  /s/ Dennis S. Meteny    President, Chief Executive Officer and Director
- ------------------------           (Principal Executive Officer)
    Dennis S. Meteny

                                             Director
- ------------------------
 Bernard Shou-Chung Zau
</TABLE>
 
                                     II-4
<PAGE>
 
                               RESPIRONICS, INC.
 
                                  COMMON STOCK
 
                               ----------------
 
                       REGISTRATION STATEMENT ON FORM S-3
 
                               ----------------
 
             EXHIBIT INDEX (PURSUANT TO ITEM 601 OF REGULATION S-K)
 
<TABLE>
<CAPTION>
                                                                     PAGE NUMBER
                                                                    IN SEQUENTIAL
 EXHIBIT                                                              NUMBERING
   NO.               DESCRIPTION AND METHOD OF FILING                  SYSTEM
 -------             --------------------------------               -------------
 <C>     <S>                                                        <C>
   1.1   Underwriting Agreement (filed herewith).................        --
   4.1   Amended and Restated Certificate of Incorporation of the
         Company (incorporated herein by reference to Exhibit 3.2
         to the Company's Form S-1 Registration Statement No. 33-
         20899)..................................................        N/A
   4.2   Articles of Amendment to Amended and Restated
         Certificate of Incorporation of the Company
         (incorporated herein by reference to Exhibit 4.2 to the
         Company's Form S-8 Registration Statement No. 33-36459).        N/A
   4.3   Bylaws of Company (incorporated herein by reference to
         Exhibit 3.2 to the Company's Form S-1 Registration
         Statement No. 33-20899).................................        N/A
   5.1   Opinion of Reed Smith Shaw & McClay as to the legality
         of the Common Shares being registered (filed herewith)..        --
  23.1   Consent of Reed Smith Shaw & McClay (included in Exhibit
         5.1 filed herewith).....................................        N/A
  23.2   Consent of Independent Auditors (filed herewith)........        --
  24.1   Power of Attorney (set forth on page II-4 of the
         Registration Statement).................................        N/A
</TABLE>
 
                                      II-5

<PAGE>
 
                                                                    EXHIBIT 1.1



                                            Shares
                             ---------------

                               Respironics, Inc.

                                  Common Stock

                                ($.01 Par Value)


                             UNDERWRITING AGREEMENT
                             ----------------------


                                                                          , 1996
                                                           ---------------


Alex. Brown & Sons Incorporated
Cowen & Company
Parker/Hunter Incorporated
As Representatives of the
 Several Underwriters
c/o  Alex. Brown & Sons Incorporated
135 East Baltimore Street
Baltimore, Maryland 21202

Gentlemen:

     Respironics, Inc., a Delaware corporation (the "Company"), and certain
shareholders of the Company (the "Selling Shareholders") propose to sell to the
several underwriters (the "Underwriters") named in Schedule I hereto for whom
you are acting as representatives (the "Representatives") an aggregate of
3,030,000 shares of the Company's Common Stock, $.01 par value (the "Firm
Shares"), of which 2,000,000 shares will be sold by the  Company and
1,030,000 shares will be sold by the Selling Shareholders.  The respective
amounts of the Firm Shares to be so purchased by the several Underwriters are
set forth opposite their names in Schedule I hereto, and the respective amounts
to be sold by the Selling Shareholders are set forth opposite their names in
Schedule II hereto.  The Company and the Selling Shareholders are
<PAGE>
 
sometimes referred to herein collectively as the "Sellers."  The Company and
a Selling Shareholder also propose to sell at the Underwriters' option an 
aggregate of up to 454,500 additional shares of the Company's Common Stock 
(the "Option Shares") as set forth below.

     As the Representatives, you have advised the Company and the Selling
Shareholders (a)  that you are authorized to enter into this Agreement on behalf
of the several Underwriters, and  (b) that the several Underwriters are willing,
acting severally and not jointly, to purchase the numbers of Firm Shares set
forth opposite their respective names in Schedule I, plus their pro rata portion
of the Option Shares if you elect to exercise the over-allotment option in whole
or in part for the accounts of the several Underwriters.  The Firm Shares and
the Option Shares (to the extent the aforementioned option is exercised) are
herein collectively called the "Shares."

     In consideration of the mutual agreements contained herein and of the
interests of the parties in the transactions contemplated hereby, the parties
hereto agree as follows:

  1. REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND THE SELLING SHAREHOLDERS.
     -------------------------------------------------------------------------- 

     (a)  The Company represents and warrants as follows:

          (i) A registration statement on Form S-3 (File No. 333-______) with
respect to the Shares has been carefully prepared by the Company in conformity
with the requirements of the Securities Act of 1933, as amended, (the "Act") and
the Rules and Regulations (the "Rules and Regulations") of the Securities and
Exchange Commission (the "Commission") thereunder and has been filed with the
Commission under the Act. The Company has complied with the conditions for the
use of Form S-3 with respect to the proposed offering. Copies of such
registration statement, including any amendments thereto, the preliminary
prospectuses (meeting the requirements of Rule 430A of the Rules and
Regulations) contained therein and the exhibits, financial statements and
schedules, as finally amended and revised, have heretofore been delivered by the
Company to you. Such registration statement, together with any registration
                                             ------------------------------
statement filed by the Company pursuant to Rule 462(b) of the Act, herein
- ------------------------------------------------------------------
referred to as the "Registration Statement," which shall be deemed to include
all information omitted therefrom in reliance upon Rule 430A and contained in
the Prospectus referred to below, has been declared effective by the Commission
under the Act and no post-effective amendment to the Registration Statement has
been filed as of the date of this Agreement. The form of prospectus first filed
by the Company with the Commission pursuant to its Rule 424(b) and Rule 430A is
herein referred to as the "Prospectus." Each preliminary prospectus included in
the Registration Statement prior to the time it becomes effective is herein
referred to as a "Preliminary Prospectus." Any reference herein to any
Preliminary Prospectus or the Prospectus shall be deemed to refer to and include
the documents incorporated by reference therein, as of the date of such
Preliminary Prospectus or Prospectus, as the case may be, and, in the case of
any reference herein to any Prospectus, also shall be deemed to include any
documents incorporated by reference therein, and any supplements

                                      -2-
<PAGE>
 
or amendments thereto, filed with the Commission after the date of filing of the
Prospectus under Rules 424(b) and 430A, and prior to the termination of the
offering of the Shares by the Underwriters.

          (ii) The Company has been duly organized and is validly existing as a
corporation in good standing under the laws of the State of Delaware, with
corporate power and authority to own its properties and conduct its business as
described in the Registration Statement; each of the subsidiaries of the Company
(collectively, the "Subsidiaries") has been duly organized and is validly
existing as a corporation in good standing under the laws of the jurisdiction of
its incorporation, with corporate power and authority to own or lease its
properties and conduct its business as described in the Registration Statement;
the Company and each of the Subsidiaries are duly qualified to transact business
in all jurisdictions in which the conduct of their business requires such
qualification; the outstanding shares of capital stock of each of the
Subsidiaries have been duly authorized and validly issued, are fully paid and
non-assessable and to the extent shown in Exhibit A hereto are owned by the
Company or another Subsidiary free and clear of all liens, encumbrances and
security interests; and no options, warrants or other rights to purchase,
agreements or other obligations to issue or other rights to convert any
obligations into shares of capital stock or ownership interests in the
Subsidiaries are outstanding.

          (iii) The outstanding shares of Common Stock of the Company, including
all shares to be sold by the Selling Shareholders, have been duly authorized and
validly issued and are fully paid and non-assessable; the portion of the Shares
to be issued and sold by the Company have been duly authorized and when issued
and paid for as contemplated herein will be validly issued, fully paid and non-
assessable; and no preemptive rights of stockholders exist with respect to any
of the Shares or the issue and sale thereof.

          (iv) The Shares conform with the statements concerning them in the
Registration Statement.

          (v) The Commission has not issued an order preventing or suspending
the use of any Preliminary Prospectus relating to the proposed offering of the
Shares nor instituted proceedings for that purpose. The Registration Statement
contains and the Prospectus and any amendments or supplements thereto will
contain all statements which are required to be stated therein by, and in all
respects conform or will conform, as the case may be, to the requirements of,
the Act and the Rules and Regulations. The documents incorporated by reference
in the Prospectus, at the time they will be filed with the Commission will
conform at the time of filing, in all respects to the requirements of the
Securities Exchange Act of 1934 or the Act, as applicable, and the Rules and
Regulations of the Commission thereunder. Neither the Registration Statement nor
any amendment thereto, and neither the Prospectus nor any supplement thereto,
including any documents incorporated by reference therein, contains or will
contain, as the case may be, any untrue statement of a material fact or omits or
will omit to state any material fact required to be stated therein or necessary
to make the statements therein, in the light of the circumstances under which
they were made, not misleading; provided, however, that the Company

                                      -3-
<PAGE>
 
makes no representations or warranties as to information contained in or omitted
from the Registration Statement or the Prospectus, or any such amendment or
supplement, or any documents incorporated by reference therein, in reliance
upon, and in conformity with, written information furnished to the Company by or
on behalf of any Underwriter through the Representatives, specifically for use
in the preparation thereof.

          (vi) The consolidated financial statements of the Company and the
Subsidiaries, together with related notes and schedules as set forth in the
Registration Statement, present fairly the financial position and the results of
operations of the Company and Subsidiaries consolidated, at the indicated dates
and for the indicated periods. Such financial statements have been prepared in
accordance with generally accepted principles of accounting, consistently
applied throughout the periods involved, and all adjustments necessary for a
fair presentation of results for such periods have been made. The summary
financial and statistical data included in the Registration Statement presents
fairly the information shown therein and have been compiled on a basis
consistent with the financial statements presented therein.

          (vii) There is no action or proceeding pending or, to the knowledge of
the Company, threatened against the Company or any of the Subsidiaries before
any court or administrative agency which might result in any material adverse
change in the business or condition of the Company and of the Subsidiaries taken
as a whole, except as set forth in the Registration Statement.

          (viii) The Company and the Subsidiaries have good and marketable title
to all of the properties and assets reflected in the financial statements (or as
described in the Registration Statement) hereinabove described, subject to no
lien, mortgage, pledge, charge or encumbrance of any kind except those reflected
in such financial statements (or as described in the Registration Statement) or
which are not material in amount. The leases under which the Company and the
Subsidiaries occupy their leased properties conform to the description thereof
set forth in the Registration Statement and, to the best of the Company's
knowledge, such leases are valid and binding obligations of the landlords.

          (ix) The Company and the Subsidiaries have filed all Federal, State
and foreign income tax returns which have been required to be filed and have
paid all taxes indicated by said returns and all assessments received by them or
any of them to the extent that such taxes have become due and are not being
contested in good faith.

          (x) Since the respective dates as of which information is given in the
Registration Statement, as it may be amended or supplemented, there has not been
any material adverse change or any development involving a prospective material
adverse change in or affecting the condition, financial or otherwise, of the
Company and its Subsidiaries taken as a whole or the earnings, business affairs,
management, or business prospects of the Company and its Subsidiaries taken as a
whole, whether or not occurring in the ordinary course of business, and there
has not been any material transaction entered into by the Company or the
Subsidiaries, other

                                      -4-
<PAGE>
 
than transactions in the ordinary course of business and changes and
transactions contemplated by the Registration Statement, as it may be amended or
supplemented. The Company and the Subsidiaries have no material contingent
obligations which are not disclosed in the Registration Statement, as it may be
amended or supplemented.

          (xi) Neither the Company nor any of the Subsidiaries is in default
under any agreement, lease, contract, indenture or other instrument or
obligation to which it is a party or by which it or any of its properties is
bound and which default is of material significance in respect of the business
or financial condition of the Company and the Subsidiaries taken as a whole. The
consummation of the transactions herein contemplated and the fulfillment of the
terms hereof will not conflict with or result in a breach of any of the terms or
provisions of, or constitute a default under, any indenture, mortgage, deed of
trust or other agreement or instrument to which the Company or any Subsidiary is
a party, or of the Charter or by-laws of the Company or any order, rule or
regulation applicable to the Company or any Subsidiary of any court or of any
regulatory body or administrative agency or other governmental body having
jurisdiction.

          (xii) Each approval, consent, order, authorization, designation,
declaration or filing by or with any regulatory, administrative or other
governmental body necessary in connection with the execution and delivery by the
Company of this Agreement and the consummation of the transactions herein
contemplated (except such additional steps as may be required by the National
Association of Securities Dealers, Inc. (the "NASD") or may be necessary to
qualify the Shares for public offering by the Underwriters under State
securities or Blue Sky laws) has been obtained or made and is in full force and
effect.

          (xiii) The Company owns or possesses adequate licenses or other rights
to use all patents, patent applications, trademarks, trademark applications,
service marks, service mark applications, tradenames, copyrights, manufacturing
processes, formulae, trade secrets and know-how or other information
(collectively, "Intellectual Property") described in the Prospectus as owned by
or used by it or which is necessary to the conduct of its business as now
conducted or proposed to be conducted as described in the Prospectus. To the
knowledge of the Company, none of the patent rights owned or licensed by the
Company are unenforceable or invalid. Except as disclosed in the Prospectus, the
Company is not aware of any infringement of or conflict with the rights or
claims of others with respect to any of the Company's products or Intellectual
Property which could have a material adverse effect on the business or financial
condition of the Company or the Subsidiaries, taken as a whole. The Company is
not aware of any infringement of any of the Company's Intellectual Property
rights by any third party which could have a material adverse effect on the
business or financial condition of the Company and the Subsidiaries, taken as a
whole.

          (xiv) Except as described in the Prospectus, the Company and each of
the Subsidiaries are conducting their business in compliance with all the laws,
rules and regulations of the jurisdictions in which they are conducting
business, including, without limitation, those of the United States Food and
                                                             ------
Drug Administration (the "FDA"), except where failure to be so in

                                      -5-
<PAGE>
 
compliance, singly or in the aggregate, would not have a material adverse effect
on the business or financial condition of the Company and the Subsidiaries,
taken as a whole.

          (xv) Except as described in the Prospectus, each of the Company and
the Subsidiaries (i) holds and is operating in compliance with all licenses,
authorizations, consents, approvals, certificates and permits (individually, a
"Permit") from any regulatory body or administrative agency or other
governmental body having jurisdiction including, without limitation, the FDA,
(ii) has made all necessary filings required under any Federal, State or foreign
law, rule or regulation and (iii) has obtained all necessary authorizations,
consents, and approvals (individually, an "Approval") from other persons which
are necessary to own or lease its properties and assets and to the conduct of
its business, except where the failure to so hold or comply with any Permit, the
failure to make any such filing or the failure to obtain any Approval would not
have, singly or in the aggregate, a material adverse effect on the business or
financial condition of the Company and the Subsidiaries, taken as a whole.
Neither the Company nor any Subsidiary has received any notice of proceedings
relating to the revocation or modification of any such Permit which, singly or
in the aggregate, if the subject of an unfavorable decision, ruling or finding,
could have a material adverse effect on the business or financial condition of
the Company and the Subsidiaries. To the best of the Company's knowledge, all of
the properties now or formerly owned or leased by the Company or any Subsidiary,
all research and manufacturing operations conducted thereon (including
discharges and emissions therefrom) and all research and manufacturing equipment
now or formerly used at said properties, have been and are in compliance with
all Federal, state, local and foreign status, ordinances, regulations, rules and
standards concerning or relating to industrial hygiene and the protection of
health, safety, welfare and the environment (collectively, "the Environmental
Laws"), except to the extent that any failure to be in compliance, singly or in
the aggregate, would not have a material adverse effect on the business or
financial condition of the Company and the Subsidiaries, taken as a whole.
Neither the Company nor any Subsidiary has received notice or has actual or
constructive knowledge, of any claim, demand, investigation, regulatory action,
suit or other action instituted or threatened against it or said property
relating to any of the Environmental Laws.

          (xvi) The Company has not distributed and, prior to the later to occur
of (i) the Closing Date and (ii) completion of the distribution of the Shares,
will not distribute any offering material in connection with the offering and
sale of the Shares other than the Registration Statement, the Preliminary
Prospectus, the Prospectus or other materials, if any, permitted by the Act.

          (xvii) The Company maintains a system of internal accounting controls
sufficient to provide reasonable assurances that (i) transactions are executed
in accordance with management's general or specific authorizations; (ii)
transactions are recorded as necessary to permit preparation of financial
statements in conformity with generally accepted accounting principles and to
maintain accountability for assets; (iii) access to assets is permitted only in
accordance with management's general or specific authorization; and (iv) the
recorded

                                      -6-
<PAGE>
 
accountability for assets is compared with existing assets at reasonable
intervals and appropriate action is taken with respect to any differences.

          (xviii) To the Company's knowledge, neither the Company nor any of its
Subsidiaries nor any employee or agent of the Company or any Subsidiary has made
any payment of funds of the Company or any Subsidiary or received or retained
any funds in violation of any law, rule or regulation, which payment, receipt or
retention of funds is of character required to be disclosed in the Prospectus.

          (xix) No holder of any security of the Company has any right, which
right has not been duly waived or exercised or has lapsed, to require
registration of shares of Common Stock or any other security of the Company
because of the filing of the Registration Statement or consummation of the
transactions contemplated by this Agreement.

          (xx) The Company has filed in a timely manner each document or report
required to be filed by it pursuant to the Exchange Act and the rules and
regulations thereunder; each such document or report at the time it was filed
conformed to the requirements of the Exchange Act and the rules and regulations
thereunder; and none or such documents or reports contained an untrue statement
of any material fact or omitted to state any material fact required to be stated
therein or necessary to make the statements therein not misleading.

          (xxi) Ernst & Young LLP, who have certified certain of the financial
statements filed with the Commission as part of the Registration Statement, are
independent public accountants as required by the Act and the Rules and
Regulations.

          (xxii) The Shares to be issued and sold by the Company have been
listed on the Nasdaq National Market System, subject to notice of issuance.

     (b) Each of the Selling Shareholders severally represents and warrants as
follows:

          (i) Such Selling Shareholder has and at the Closing Date and the
Option Closing Date (as such dates are hereinafter defined) will have good and
valid title to the Firm Shares and the Option Shares to be sold by such Selling
Shareholder, free of any liens, encumbrances, equities and claims, and full
right, power and authority to effect the sale and delivery of such Firm Shares
and Option Shares; and upon the delivery of and payment for such Firm Shares and
Option Shares pursuant to this Agreement, good and valid title thereto, free of
any liens, encumbrances, equities and claims, will be transferred to the several
Underwriters.

          (ii) The consummation by such Selling Shareholder of the transactions
herein contemplated and the fulfillment by such Selling Shareholder of the terms
hereof will not result in a breach of any of the terms and provisions of, or
constitute a default under, any indenture, mortgage, deed of trust or other
agreement or instrument to which such Selling Shareholder is a

                                      -7-
<PAGE>
 
party, or of any order, rule or regulation applicable to such Selling
Shareholder of any court or of any regulatory body or administrative agency or
other governmental body having jurisdiction.

          (iii) Such Selling Shareholder has not taken and will not take,
directly or indirectly, any action designed to, or which has constituted, or
which might reasonably be expected to cause or result in stabilization or
manipulation of the price of the Common Stock of the Company.

          (iv) Without having undertaken to determine independently the accuracy
or completeness of either the representations and warranties of the Company
contained herein or the information contained in the Registration Statement and
documents incorporated by reference therein, such Selling Shareholder has no
reason to believe that the representations and warranties of the Company
contained in this Section 1 are not true and correct, is familiar with the
Registration Statement and has no knowledge of any material fact, condition or
information not disclosed in the Registration Statement or the documents
incorporated by reference therein which has adversely affected or may adversely
affect the business of the Company or any of the Subsidiaries; and the sale of
the Firm Shares and the Option Shares by such Selling Shareholder pursuant
hereto is not prompted by any information concerning the Company or any of the
Subsidiaries which is not set forth in the Registration Statement or the
documents incorporated by reference therein.

2.     PURCHASE, SALE AND DELIVERY OF THE FIRM SHARES.  On the basis of the
       ----------------------------------------------                      
representations, warranties and covenants herein contained, and subject to the
conditions herein set forth, the Sellers agree to sell to the Underwriters and
each Underwriter agrees, severally and not jointly, to purchase, at a price of
$_____ per share, the number of Firm Shares set forth opposite the name of each
Underwriter in Schedule I hereof, subject to adjustments in accordance with
Section 9 hereof. The number of Firm Shares to be purchased by each Underwriter
from each Seller shall be as nearly as practicable in the same proportion to the
total number of Firm Shares being sold by each Seller as the number of Firm
Shares being purchased by each Underwriter bears to the total number of Firm
Shares to be sold hereunder. The obligations of the Company and of each of the
Selling Shareholders to sell the Firm Shares shall be several and not joint.

     Certificates in negotiable form for the total number of the Shares to be
sold hereunder by the Selling Shareholders have been placed in custody with
____________________ as custodian (the "Custodian") pursuant to the Custodian
Agreement executed by each Selling Shareholder for delivery of all Firm Shares
and any Option Shares to be sold hereunder by the Selling Shareholders. Each of
the Selling Shareholders specifically agrees that the Firm Shares and any Option
Shares represented by the certificates held in custody for the Selling
Shareholders under the Custodian Agreement are subject to the interests of the
Underwriters hereunder, that the arrangements made by the Selling Shareholders
for such custody are to that extent irrevocable, and that the obligations of the
Selling Shareholders hereunder shall not be terminable by any act or deed of the
Selling Shareholders (or by any other person, firm or corporation including the

                                      -8-
<PAGE>
 
Company, the Custodian or the Underwriters) or by operation of law (including
the death of an individual Selling Shareholder or the dissolution of a corporate
Selling Shareholder) or by the occurrence of any other event or events, except
as set forth in the Custodian Agreement. If any such event should occur prior to
the delivery to the Underwriters of the Firm Shares or the Option Shares
hereunder, certificates for the Firm Shares or the Option Shares, as the case
may be, shall be delivered by the Custodian in accordance with the terms and
conditions of this Agreement as if such event has not occurred. The Custodian is
authorized to receive and acknowledge receipt of the proceeds of sale of the
Shares held by it against delivery of such Shares.

     Payment for the Firm Shares to be sold hereunder is to be made in New York
Clearing House funds by certified or bank cashier's checks drawn to the order of
the Company for the shares to be sold by it and to the order of
"____________________" for the shares to be sold by the Selling Shareholders, in
each case against delivery of certificates therefor to the Representatives for
the several accounts of the Underwriters. Such payment and delivery are to be
made at the offices of Alex. Brown & Sons Incorporated, 135 East Baltimore
Street, Baltimore, Maryland, at 10:00 a.m., Baltimore time, on [fill in date for
                                                               -----------------
T+3] or at such other time and date thereafter as you and the Company shall
- ---
agree upon, such time and date being herein referred to as the "Closing Date."
(As used herein, "business day" means a day on which the New York Stock Exchange
is open for trading and on which banks in New York are open for business and not
permitted by law or executive order to be closed.) The certificates for the Firm
Shares will be delivered in such denominations and in such registrations as the
Representatives requests in writing not later than the second full business day
                                                       ------
prior to the Closing Date, and will be made available for inspection by the
Representatives at least one business day prior to the Closing Date .

     In addition, on the basis of the representations and warranties herein
contained and subject to the terms and conditions herein set forth, the Company
and a Selling Shareholder listed on Schedule III hereto hereby grants an 
option to the several Underwriters to purchase the Option Shares at the price 
per share as set forth in the first paragraph of this Section 2. The maximum 
number of Option Shares to be sold by the Company and the Selling Shareholders 
is set forth opposite their respective names on Schedule III hereto. The 
option granted hereby may be exercised in whole or in part but only once and 
at any time upon written notice given within 30 days after the date of this 
Agreement, by you, as Representatives of the several Underwriters, to the 
Company and the Custodian setting forth the number of Option Shares as to which
the several Underwriters are exercising the option, the names and denominations
in which the Option Shares are to be registered and the time and date at which
such certificates are to be delivered. If the option granted hereby is exercised
in part, the respective number of Option Shares to be sold by the Company and
each of the Selling Shareholders listed in Schedule III hereto shall be
determined on a pro rata basis in accordance with the percentages set forth
opposite their names on Schedule II hereto, adjusted by you in such manner as to
avoid fractional shares. The time and date at which certificates for Option
Shares are to be delivered shall be determined by the Representatives but shall
not be earlier than three nor later than 10 full business days after the
exercise of such option, nor in any event prior to the Closing Date (such time
and date being 

                                      -9-
<PAGE>
 
herein referred to as the "Option Closing Date"). If the date of exercise of the
option is three or more days before the Closing Date, the notice of exercise
shall set the Closing Date as the Option Closing Date. The number of Option
Shares to be purchased by each Underwriter shall be in the same proportion to
the total number of Option Shares being purchased as the number of Firm Shares
being purchased by such Underwriter bears to the total number of Firm Shares,
adjusted by you in such manner as to avoid fractional shares. The option with
respect to the Option Shares granted hereunder may be exercised only to cover
over-allotments in the sale of the Firm Shares by the Underwriters. You, as
Representatives of the several Underwriters, may cancel such option at any time
prior to its expiration by giving written notice of such cancellation to the
Company. To the extent, if any, that the option is exercised, payment for the
Option Shares shall be made on the Option Closing Date in New York Clearing
House funds by certified or bank cashier's check drawn to the order of the
Company for the Option Shares to be sold by it and to the order of
"____________________" for the Option Shares to be sold by the Selling
Shareholders against delivery of certificates therefor at the offices of Alex.
Brown & Sons Incorporated, 135 East Baltimore Street, Baltimore, Maryland.

3.   OFFERING BY THE UNDERWRITERS.  It is understood that the several
     ----------------------------                                    
Underwriters are to make a public offering of the Firm Shares as soon as the
Representatives deems it advisable to do so. The Firm Shares are to be initially
offered to the public at the initial public offering price set forth in the
Prospectus. The Representatives may from time to time thereafter change the
public offering price and other selling terms. To the extent, if at all, that
any Option Shares are purchased pursuant to Section 2 hereof, the Underwriters
will offer them to the public on the foregoing terms.

     It is further understood that you will act as the Representatives for the
Underwriters in the offering and sale of the Shares in accordance with a Master
Agreement Among Underwriters entered into by you and the several other
Underwriters.

4.   COVENANTS OF THE COMPANY AND THE SELLING SHAREHOLDERS.
     ----------------------------------------------------- 

     (a) The Company covenants and agrees with the several Underwriters and the
Selling Shareholders that:

          (i) The Company will (i) prepare and timely file with the Commission
under Rule 424(b) of the Rules and Regulations a Prospectus containing
information previously omitted at the time of effectiveness of the Registration
Statement in reliance on Rule 430A of the Rules and Regulations, (ii) not file
any amendment to the Registration Statement or supplement to the Prospectus or
document incorporated by reference therein of which the Representatives shall
not previously have been advised and furnished with a copy or to which the
Representatives shall have reasonably objected in writing or which is not in
compliance with the Rules and Regulations and (iii) file on a timely basis all
reports and any definitive proxy or information statements required to be filed
by the Company with the Commission subsequent to the date of the Prospectus and
prior to the termination of the offering of the Shares by the Underwriters.

                                      -10-
<PAGE>
 
          (ii) The Company will advise the Representatives promptly of any
request of the Commission for amendment of the Registration Statement or for
supplement to the Prospectus or for any additional information, or of the
issuance by the Commission of any stop order suspending the effectiveness of the
Registration Statement or the use of the Prospectus or of the institution of any
proceedings for that purpose, and the Company will use its best efforts to
prevent the issuance of any such stop order preventing or suspending the use of
the Prospectus and to obtain as soon as possible the lifting thereof, if issued.

          (iii) The Company will cooperate with the Representatives in
endeavoring to qualify the Shares for sale under the securities laws of such
jurisdictions as the Representatives may reasonably have designated in writing
and will make such applications, file such documents, and furnish such
information as may be reasonably required for that purpose, provided the Company
shall not be required to qualify as a foreign corporation or to file a general
consent to service of process in any jurisdiction where it is not now so
qualified or required to file such a consent. The Company will, from time to
time, prepare and file such statements, reports, and other documents, as are or
may be required to continue such qualifications in effect for so long a period
as the Representatives may reasonably request for distribution of the Shares.

          (iv) The Company will deliver to, or upon the order of, the
Representatives, from time to time, as many copies of any Preliminary Prospectus
as the Representatives may reasonably request. The Company will deliver to, or
upon the order of, the Representatives during the period when delivery of a
Prospectus is required under the Act, as many copies of the Prospectus in final
form, or as thereafter amended or supplemented, as the Representatives may
reasonably request. The Company will deliver to the Representatives at or before
the Closing Date, four signed copies of the Registration Statement and all
amendments thereto including all exhibits filed therewith, and will deliver to
the Representatives such number of copies of the Registration Statement,
including documents incorporated by reference therein, but without exhibits, and
of all amendments thereto, as the Representatives may reasonably request.

          (v) If during the period in which a prospectus is required by law to
be delivered by an Underwriter or dealer any event shall occur as a result of
which, in the judgment of the Company or in the opinion of counsel for the
Underwriters, it becomes necessary to amend or supplement the Prospectus in
order to make the statements therein, in the light of the circumstances existing
at the time the Prospectus is delivered to a purchaser, not misleading, or, if
it is necessary at any time to amend or supplement the Prospectus to comply with
any law, the Company promptly will either (i) prepare and file with the
Commission an appropriate amendment to the Registration Statement or supplement
to the Prospectus or (ii) prepare and file with the Commission an appropriate
filing under the Securities Exchange Act of 1934 which shall be incorporated by
reference in the Prospectus so that the Prospectus as so amended or supplemented
will not, in the light of the circumstances when it is so delivered, be
misleading, or so that the Prospectus will comply with the law.

                                      -11-
<PAGE>
 
          (vi) The Company will make generally available to its security
holders, as soon as it is practicable to do so, but in any event not later than
18 months after the effective date of the Registration Statement, an earning
- --
statement (which need not be audited) in reasonable detail, covering a period of
at least 12 consecutive months beginning after the effective date of the
Registration Statement, which earning statement shall satisfy the requirements
of Section 11(a) of the Act and Rule 158 of the Rules and Regulations and will
advise you in writing when such statement has been so made available.

          (vii) The Company will, for a period of five years from the Closing
Date, deliver to the Representatives copies of annual reports and copies of all
other documents, reports and information furnished by the Company to its
stockholders or filed with any securities exchange pursuant to the requirements
of such exchange or with the Commission pursuant to the Act or the Securities
Exchange Act of 1934, as amended. The Company will deliver to the
Representatives similar reports with respect to significant subsidiaries, as
that term is defined in the Rules and Regulations, which are not consolidated in
the Company's financial statements.

          (viii) No offering, sale or other disposition of any Common Stock of
the Company will be made for a period of 120 days after the date of this
Agreement, directly or indirectly, by the Company otherwise than hereunder or
with the prior written consent of the Representatives except that the Company
may, without such consent, issue shares upon the exercise of options outstanding
on the date of this Agreement.

          (ix) The Company will apply the net proceeds from the sale of the
Shares to be sold by it hereunder substantially in accordance with the
description in the Prospectus.

     (b) Each of the Selling Shareholders covenants and agrees with the several
Underwriters and the Company that:

          (i) For a period of 90 days after the date of this Agreement, he will
not offer to sell, contract to sell, transfer or otherwise dispose of, directly
or indirectly, any shares of Common Stock, any options, rights or warrants to
purchase any shares of Common Stock (including any stock appreciation right, or
similar right with an exercise or conversion privilege at a price related to, or
derived from, the market price of the Common Stock) or any securities
convertible into or exchangeable for shares of Common Stock owned directly by
such Selling Shareholder with respect to which he has the power of disposition
(including, without limitation, shares of Common Stock that he may be deemed to
beneficially own in accordance with the rules and regulations promulgated under
the Exchange Act), or (ii) engage in any hedging transactions with respect to
the Common Stock that may have an impact on the market price of the Common
Stock, otherwise than hereunder or with the prior written consent of the
Representatives.

          (ii) In order to document the Underwriters' compliance with the
reporting and withholding provisions of the Tax Equity and Fiscal Responsibility
Act of 1982 and the Interest and Dividend Tax Compliance Act of 1983 with
respect to the transactions herein contemplated,

                                      -12-
<PAGE>
 
each of the Selling Shareholders agrees to deliver to you prior to or on the
Closing Date a properly completed and executed United States Treasury Department
Form W-9 (or other applicable form or statement specified by Treasury Department
regulations in lieu thereof).

5.   COSTS AND EXPENSES.  The Company will pay all costs, expenses and fees
     ------------------                                                    
incident to the performance of the obligations of the Sellers under this
Agreement, including, without limiting the generality of the foregoing, the
following: accounting fees of the Company; the fees and disbursements of counsel
for the Company; the cost of printing and delivering to, or as requested by, the
Underwriters copies of the Registration Statement, Preliminary Prospectuses, the
Prospectus, this Agreement, the Agreement Among Underwriters, the Underwriters'
Selling Memorandum, the Underwriters' Questionnaire, the Invitation Letter, the
Power of Attorney, the Listing Application, the Blue Sky Survey and any
supplements or amendments thereto; the filing fees of the Commission; the filing
fees and expenses incident to securing any required review by the National
Association of Securities Dealers, Inc. (the "NASD") of the terms of the sale of
the Shares; the Listing Fee of the Nasdaq National Market System; and the
expenses, including the fees and disbursements of counsel for the Underwriters,
incurred in connection with the qualification of the Shares under State
securities or Blue Sky laws. To the extent, if at all, that any of the Selling
Shareholders engage special legal counsel to represent them in connection with
this offering, the fees and expenses of such counsel shall be borne by such
Selling Shareholder. Any transfer taxes imposed on the sale of the Shares to the
several Underwriters will be paid by the Sellers pro rata. The Sellers shall
not, however, be required to pay for any of the Underwriters expenses (other
than those related to qualification under State securities or Blue Sky laws)
except that, if this Agreement shall not be consummated because the conditions
in Section 7 hereof are not satisfied, or because this Agreement is terminated
by the Representatives pursuant to Section 6 hereof, or by reason of any
failure, refusal or inability on the part of the Company or the Selling
Shareholders to perform any undertaking or satisfy any condition of this
Agreement or to comply with any of the terms hereof on their part to be
performed, unless such failure to satisfy said condition or to comply with said
terms be due to the default or omission of any Underwriter, then the Company
shall reimburse the several Underwriters for reasonable out-of-pocket expenses,
including fees and disbursements of counsel, reasonably incurred in connection
with investigating, marketing and proposing to market the Shares or in
contemplation of performing their obligations hereunder; but the Company and the
Selling Shareholders shall not in any event be liable to any of the several
Underwriters for damages on account of loss of anticipated profits from the sale
by them of the Shares.

6.   CONDITIONS OF OBLIGATIONS OF THE UNDERWRITERS.  The several obligations of
     ---------------------------------------------                             
the Underwriters to purchase the Firm Shares on the Closing Date and the Option
Shares, if any, on the Option Closing Date are subject to the accuracy, as of
the Closing Date or the Option Closing Date, as the case may be, of the
representations and warranties of the Company and the Selling Shareholders
contained herein, and to the performance by the Company and the Selling
Shareholders of their covenants and obligations hereunder and to the following
additional conditions:

                                      -13-
<PAGE>
 
     (a) No stop order suspending the effectiveness of the Registration
Statement, as amended from time to time, shall have been issued and no
proceedings for that purpose shall have been taken or, to the knowledge of the
Company or the Selling Shareholders, shall be contemplated by the Commission.

     (b) The Representatives shall have received on the Closing Date or the
Option Closing Date, as the case may be, the opinion of Reed Smith Shaw &
McClay, counsel for the Company and the Selling Shareholders, dated the Closing
Date or the Option Closing Date, as the case may be, addressed to the
Underwriters to the effect that:

          (i) The Company has been duly organized and is validly existing as a
corporation in good standing under the laws of the State of Delaware, with
corporate power and authority to own its properties and conduct its business as
described in the Prospectus; each of the Subsidiaries has been duly organized
and is validly existing as a corporation in good standing under the laws of the
jurisdiction of its incorporation, with corporate power and authority to own its
properties and conduct its business as described in the Prospectus; the Company
and each of the Subsidiaries are duly qualified to transact business in all
jurisdictions in which the conduct of their business requires such
qualification, or in which the failure to qualify would have a materially
adverse effect upon the business of the Company and the Subsidiaries taken as a
whole; and the outstanding shares of capital stock of each of the Subsidiaries
have been duly authorized and validly issued, are fully paid and non-assessable
and are owned by the Company or a Subsidiary, to the best of such counsel's
knowledge, free and clear of all liens, encumbrances and security interests; to
the best of such counsel's knowledge, except as stated in the Prospectus, there
are outstanding no options, warrants or other rights to purchase, agreements or
other obligations to issue or other rights to convert any obligations into any
shares of capital stock or of ownership interests in the Subsidiaries.

          (ii) The Company has authorized and outstanding capital stock as set
forth under the caption "Capitalization" in the Prospectus; the authorized
shares of its Common Stock have been duly authorized; the outstanding shares of
its Common Stock, including the Shares to be sold by the Selling Shareholders,
have been duly authorized and validly issued and are fully paid and non-
assessable; all of the Shares conform to the description thereof contained in
the Prospectus; the certificates for the Shares are in due and proper form; the
shares of Common Stock, including the Option Shares, if any, to be sold by the
Company pursuant to this Agreement have been duly authorized and, when issued
and paid for as contemplated by this Agreement, will be validly issued, fully
paid and non-assessable; and no preemptive rights of stockholders exist with
respect to any of the Shares or the issue and sale thereof.

          (iii) The Registration Statement has become effective under the Act
and, to the best of the knowledge of such counsel, no stop order proceedings
with respect thereto have been instituted or are pending or threatened under the
Act.

                                      -14-
<PAGE>
 
          (iv) The Registration Statement, all Preliminary Prospectuses, the
Prospectus and each amendment or supplement thereto and document incorporated by
reference therein comply as to form in all material respects with the
requirements of the Act or the Securities Exchange Act of 1934, as applicable
and the applicable rules and regulations thereunder (except that such counsel
need express no opinion as to the financial statements, schedules and other
financial information included or incorporated by reference therein).

          (v) Such counsel does not know of any contracts or documents required
to be filed as exhibits to or incorporated by reference in the Registration
Statement or described in the Registration Statement or the Prospectus which are
not so filed, incorporated by reference or described as required, and such
contracts and documents as are summarized in the Registration Statement or the
Prospectus are fairly summarized in all material respects.

          (vi) Such counsel knows of no material legal proceedings pending or
threatened against the Company or any of the Subsidiaries except as set forth in
the Prospectus.

          (vii) The execution and delivery of this Agreement and the
consummation of the transactions herein contemplated do not and will not
conflict with or result in a breach of any of the terms or provisions of, or
constitute a default under, the Charter or by-laws of the Company, or any
agreement or instrument known to such counsel to which the Company or any of the
Subsidiaries is a party or by which the Company or any of the Subsidiaries may
be bound or violate any applicable law or regulation or, to the best of such
counsel's knowledge, any order, writ, injunction or decree of any jurisdiction,
court or governmental instrumentality binding upon the Company, any Subsidiary
or any of their properties, except that counsel need express no opinion as to
state securities or blue sky laws.

          (viii) This Agreement has been duly authorized, executed and delivered
by the Company.

          (ix) No approval, consent, order, authorization, designation,
declaration or filing by or with any regulatory, administrative or other
governmental body is necessary in connection with the execution and delivery of
this Agreement and the consummation of the transactions herein contemplated
(other than as may be required by the National Association of Securities
Dealers, Inc. or as required by State securities and Blue Sky laws as to which
such counsel need express no opinion) except such as have been obtained or made,
specifying the same.

          (x) This Agreement has been duly authorized, executed and delivered on
behalf of the Selling Shareholders.

          (xi) Each Selling Shareholder has full legal right, power and
authority, and any approval required by law (other than as required by State
securities and Blue Sky laws as to which such counsel need express no opinion),
to sell, assign, transfer and deliver the portion of the Shares to be sold by
such Selling Shareholder.

                                      -15-
<PAGE>
 
          (xii) The Custodian Agreement has been duly authorized, executed and
                                        ------------------------
delivered by each Selling Shareholder and, pursuant to the Custodian Agreement,
                                      -----------------------------------------
each Selling Shareholder has authorized the attorneys-in-fact named therein to
- ------------------------------------------------------------------------------
carry out the transactions contemplated by the Underwriting Agreement on its
- ----------------------------------------------------------------------------
behalf and to deliver the Shares to be sold by such Selling Shareholder pursuant
- --------------------------------------------------------------------------------
to this Agreement.
- ------------------


          (xiii) The Underwriters (assuming that they are bona fide purchasers
within the meaning of the Uniform Commercial Code) have acquired good and
marketable title to the Shares being sold by each Selling Shareholder on the
Closing Date, free and clear of all claims, liens, encumbrances and security
interests whatsoever.

     In rendering such opinion Reed Smith Shaw & McClay may rely as to matters
governed by the laws of states other than Pennsylvania, the Delaware General
Corporation Law or Federal laws on counsel in such jurisdictions and as to the
matters set forth in subparagraphs (xi), (xii) and (xiii) on opinions of other
counsel representing the respective Selling Shareholders, provided that in each
case Reed Smith Shaw & McClay shall state that they believe that they and the
Underwriters are justified in relying on such other counsel. In addition to the
matters set forth above, such opinion shall also include a statement to the
effect that such counsel believes that the Registration Statement, as of the
            ---------------------
time it became effective under the Act, the Prospectus or any amendment or
supplement thereto, on its date and on the Closing Date, or any of the documents
incorporated by reference therein, as of the date of effectiveness of the
Registration Statement or, in the case of documents incorporated by reference in
the Prospectus after the date of effectiveness of the Registration Statement, as
of the respective dates when such documents were filed with the Commission, as
the case may be, did not contain an untrue statement of a material fact or omit
                 -------
to state a material fact required to be stated therein or necessary to make the
statements therein not misleading (except that such counsel need express no view
as to financial statements, schedules and other financial information included
or incorporated by reference therein). With respect to such statement, Reed
Smith Shaw & McClay may state that their belief is based upon the procedures set
forth therein, but is without independent check and verification.

     (c) The Representatives shall have received on the Closing Date the opinion
of Hyman, Phelps & McNamara, P.C., regulatory counsel for the Company, dated the
Closing Date addressed to the Underwriters in form and substance reasonably
satisfactory to the Underwriters and their counsel.

     (d) The Representatives shall have received from Ropes & Gray, counsel for
the Underwriters, an opinion dated the Closing Date or the Option Closing Date,
as the case may be, substantially to the effect specified in subparagraphs (ii)
(with respect to the Shares), (iii), (iv) and (viii) of Paragraph (b) of this
Section 6, and that the Company is a validly organized and existing corporation
under the laws of the State of Delaware. In rendering such opinion Ropes & Gray
may rely as to all matters governed other than by the Delaware General
Corporation Law or

                                      -16-
<PAGE>
 
Federal laws on the opinion of counsel referred to in Paragraph (b) of this
Section 6. In addition to the matters set forth above, such opinion shall also
include a statement to the effect that nothing has come to the attention of such
counsel which leads them to believe that the Registration Statement, as of the
time it became effective under the Act, and the Prospectus or any amendment or
supplement thereto, on its date and on the Closing Date, or any of the documents
incorporated by reference therein, as of the date of effectiveness of the
Registration Statement or, in the case of documents incorporated by reference in
the Prospectus after the date of effectiveness of the Registration Statement, as
of the respective dates when such documents were filed with the Commission,
contain an untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading (except that such counsel need express no view as to financial
statements, schedules and other financial information included or incorporated
by reference therein). With respect to such statement, Ropes & Gray may state
that their belief is based upon the procedures set forth therein, but is without
independent check and verification.

     (e) The Representatives shall have received at or prior to the Closing Date
from Ropes & Gray a memorandum or summary, in form and substance satisfactory to
the Representatives, with respect to the qualification for offering and sale by
the Underwriters of the Shares under the State securities or Blue Sky laws of
such jurisdictions as the Representatives may reasonably have designated to the
Company.

     (f) The Representatives shall have received on the Closing Date or the
Option Closing Date, as the case may be, a signed letter from Ernst & Young LLP,
dated the Closing Date or the Option Closing Date, as the case may be, which
shall confirm, on the basis of a review in accordance with the procedures set
forth in the letter signed by such firm and dated and delivered to the
Representatives on the date hereof that nothing has come to their attention
during the period from the date five days prior to the date hereof, to a date
not more than five days prior to the Closing Date or the Option Closing Date, as
the case may be, which would require any change in their letter dated the date
hereof if it were required to be dated and delivered on the Closing Date or the
Option Closing Date, as the case may be. All such letters shall be in form and
substance satisfactory to the Representatives and their counsel.

     (g) The Representatives shall have received on the Closing Date or the
Option Closing Date, as the case may be, a certificate or certificates of the
Chief Executive Officer and the Chief Financial Officer of the Company to the
effect that, as of the Closing Date or the Option Closing Date, as the case may
be, each of them severally represents as follows:

          (i) The Registration Statement has become effective under the Act and
no stop order suspending the effectiveness of the Registrations Statement has
been issued, and no proceedings for such purpose have been taken or are, to his
knowledge, contemplated by the Commission.

                                      -17-
<PAGE>
 
          (ii) He does not know of any litigation instituted or threatened
against the Company of a character required to be disclosed in the Registration
Statement which is not so disclosed; he does not know of any material contract
required to be filed as an exhibit to the Registration Statement which is not so
filed; and the representations and warranties of the Company contained in
Section 1 hereof are true and correct as of the Closing Date or the Option
Closing Date, as the case may be .

          (iii) He has carefully examined the Registration Statement and the
Prospectus and, in his opinion, as of the effective date of the Registration
Statement, the statements contained in the Registration Statement, including any
document incorporated by reference therein, were true and correct, and such
Registration Statement and Prospectus or any document incorporated by reference
therein did not omit to state a material fact required to be stated therein or
necessary in order to make the statements therein not misleading and, in his
opinion, since the effective date of the Registration Statement, no event has
occurred which should have been set forth in a supplement to or an amendment of
the Prospectus which has not been so set forth in such supplement or amendment.

     (h) The Company and the Selling Shareholders shall have furnished to the
Representatives such further certificates and documents confirming the
representations and warranties contained herein and related matters as the
Representatives may reasonably have requested.

     (i) The Firm Shares and Option Shares, if any, have been approved for
listing upon notice of issuance on the Nasdaq National Market System.

     (j) The Company shall have furnished to you "lock-up" letters, in form and
substance satisfactory to you, signed by each director and executive officer who
is not a Selling Shareholder.

     The opinions and certificates mentioned in this Agreement shall be deemed
to be in compliance with the provisions hereof only if they are in all material
respects satisfactory to the Representatives and to Ropes & Gray, counsel for
the Underwriters.

     If any of the conditions hereinabove provided for in this Section 6 shall
not have been fulfilled when and as required by this Agreement to be fulfilled,
the obligations of the Underwriters hereunder may be terminated by the
Representatives by notifying the Company and the Selling Shareholders of such
termination in writing or by telegram at or prior to the Closing Date or the
Option Closing Date, as the case may be.

     In such event, the Selling Shareholders, the Company and the Underwriters
shall not be under any obligation to each other (except to the extent provided
in Sections 5 and 8 hereof).

                                      -18-
<PAGE>
 
7.   CONDITIONS OF THE OBLIGATIONS OF THE SELLERS.  The obligations of the
     --------------------------------------------                         
Sellers to sell and deliver the portion of the Shares required to be delivered
as and when specified in this Agreement are subject to the conditions that at
the Closing Date or the Option Closing Date, as the case may be, no stop order
suspending the effectiveness of the Registration Statement shall have been
issued and in effect or proceedings therefor initiated or threatened.


8.   INDEMNIFICATION.
     --------------- 

     (a) The Company and the Selling Shareholders, jointly and severally, agree
to indemnify and hold harmless each Underwriter and each person, if any, who
controls any Underwriter within the meaning of the Act against any losses,
claims, damages or liabilities to which such Underwriter or such controlling
person may become subject under the Act or otherwise, insofar as such losses,
claims, damages or liabilities (or actions or proceedings in respect thereof)
arise out of or are based upon (i) any untrue statement or alleged untrue
statement of any material fact contained or incorporated by reference in the
Registration Statement, any Preliminary Prospectus, the Prospectus or any
amendment or supplement thereto, or (ii) the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, and will reimburse each Underwriter and
each such controlling person for any legal or other expenses reasonably incurred
by such Underwriter or such controlling person in connection with investigating
or defending any such loss, claim, damage, liability, action or proceeding;
provided, however, that the Company and the Selling Shareholders will not be
liable in any such case to the extent that any such loss, claim, damage or
liability arises out of or is based upon an untrue statement or alleged untrue
statement, or omission or alleged omission made or incorporated by reference in
the Registration Statement, any Preliminary Prospectus, the Prospectus, or such
amendment or supplement, in reliance upon and in conformity with written
information furnished to the Company by or through the Representatives
specifically for use in the preparation thereof. In no event, however, shall the
liability of any Selling Shareholder for indemnification under this Section 8(a)
exceed the proceeds received by such Selling Shareholder from the Underwriters
in the offering. This indemnity agreement will be in addition to any liability
which the Company or the Selling Shareholders may otherwise have.

     (b) Each Underwriter will indemnify and hold harmless the Company, each of
its directors, each of its officers who have signed the Registration Statement,
the Selling Shareholders, and each person, if any, who controls the Company or
any Selling Shareholder within the meaning of the Act, against any losses,
claims, damages or liabilities to which the Company or any such director,
officer, Selling Shareholder or controlling person may become subject under the
Act or otherwise, insofar as such losses, claims, damages or liabilities (or
actions or proceedings in respect thereof) arise out of or are based upon any
untrue statement or alleged untrue statement of any material fact contained or
incorporated by reference in the Registration Statement, any Preliminary
Prospectus, the Prospectus or any amendment or supplement thereto, or arise out
of or are based upon the omission or the alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein 

                                      -19-
<PAGE>
 
not misleading in the light of the circumstances under which they were made; and
will reimburse any legal or other expenses reasonably incurred by the Company or
any such director, officer, Selling Shareholder or controlling person in
connection with investigating or defending any such loss, claim, damage,
liability, action or proceeding; provided, however, that each Underwriter will
be liable in each case to the extent, but only to the extent, that such untrue
statement or alleged untrue statement or omission or alleged omission has been
made or incorporated by reference in the Registration Statement, any Preliminary
Prospectus, the Prospectus or such amendment or supplement, in reliance upon and
in conformity with written information furnished to the Company by or through
the Representatives specifically for use in the preparation thereof. This
indemnity agreement will be in addition to any liability which such Underwriter
may otherwise have.

     (c) In case any proceeding (including any governmental investigation) shall
be instituted involving any person in respect of which indemnity may be sought
pursuant to this Section 8, such person (the "indemnified party") shall promptly
notify the person against whom such indemnity may be sought (the "indemnifying
party") in writing. No indemnification provided for in Section 8(a) or (b) shall
be available to any party who shall fail to give notice as provided in this
Section 8(c) if the party to whom notice was not given was unaware of the
proceeding to which such notice would have related and was prejudiced by the
failure to give such notice, but the failure to give such notice shall not
relieve the indemnifying party or parties from any liability which it or they
may have to the indemnified party for contribution or otherwise than on account
of the provisions of Section 8(a) or (b). In case any such proceeding shall be
brought against any indemnified party and it shall notify the indemnifying party
of the commencement thereof, the indemnifying party shall be entitled to
participate therein and, to the extent that it shall wish, jointly with any
other indemnifying party similarly notified, to assume the defense thereof, with
counsel satisfactory to such indemnified party and shall pay as incurred the
fees and disbursements of such counsel related to such proceeding. In any such
proceeding, any indemnified party shall have the right to retain its own counsel
at its own expense. Notwithstanding the foregoing, the indemnifying party shall
pay as incurred the fees and expenses of the counsel retained by the indemnified
party in the event (i) the indemnifying party and the indemnified party shall
have mutually agreed to the retention of such counsel or (ii) the named parties
to any such proceeding (including any impleaded parties) include both the
indemnifying party and the indemnified party and representation of both parties
by the same counsel would be inappropriate due to actual or potential differing
interests between them. It is understood that the indemnifying party shall not,
in connection with any proceeding or related proceedings in the same
jurisdiction, be liable for the reasonable fees and expenses of more than one
separate firm for all such indemnified parties. Such firm shall be designated in
writing by you in the case of parties indemnified pursuant to Section 8(a) and
by the Company and the Selling Shareholders in the case of parties indemnified
pursuant to Section 8(b). The indemnifying party shall not be liable for any
settlement of any proceeding effected without its written consent but if settled
with such consent or if there be a final judgement for the plaintiff, the
indemnifying party agrees to indemnify the indemnified party from and against
any loss or liability by reason of such settlement or judgment.

                                      -20-
<PAGE>
 
     (d) If the indemnification provided for in this Section 8 is unavailable to
or insufficient to hold harmless an indemnified party under Section 8(a) or (b)
above in respect of any losses, claims, damages or liabilities (or actions or
proceedings in respect thereof) referred to therein, then each indemnifying
party shall contribute to the amount paid or payable by such indemnified party
as a result of such losses, claims, damages or liabilities (or actions or
proceedings in respect thereof) in such proportion as is appropriate to reflect
the relative benefits received by the Company and the Selling Shareholders on
the one hand and the Underwriters on the other from the offering of the Shares.
If, however, the allocation provided by the immediately preceding sentence is
not permitted by applicable law or if the indemnified party failed to give the
notice required under Section 8(c) above, then each indemnifying party shall
contribute to such amount paid or payable by such indemnified party in such
proportion as is appropriate to reflect not only such relative benefits but also
the relative fault of the Company and the Selling Shareholders on the one hand
and the Underwriters on the other in connection with the statements or omissions
which resulted in such losses, claims, damages or liabilities (or actions or
proceedings in respect thereof), as well as any other relevant equitable
considerations. The relative benefits received by the Company and the Selling
Shareholders on the one hand and the Underwriters on the other shall be deemed
to be in the same proportion as the total net proceeds from the offering (before
deducting expenses) received by the Company and the Selling Shareholders bear to
the total underwriting discounts and commissions received by the Underwriters,
in each case as set forth in the table on the cover page of the Prospectus. The
relative fault shall be determined by reference to, among other things, whether
the untrue or alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information supplied by the
Company or the Selling Shareholders on the one hand or the Underwriters on the
other and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission.

     The Company, the Selling Shareholders and the Underwriters agree that it
would not be just and equitable if contributions pursuant to this Section 8(d)
were determined by pro rata allocation (even if the Underwriters were treated as
one entity for such purpose) or by any other method of allocation which does not
take account of the equitable considerations referred to above in this Section
8(d). The amount paid or payable by an indemnified party as a result of the
losses, claims, damages or liabilities (or actions or proceedings in respect
thereof) referred to above in this Section 8(d) shall be deemed to include any
legal or other expenses reasonably incurred by such indemnified party in
connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this subsection (d), (i) no Underwriter shall
be required to contribute any amount in excess of the underwriting discounts and
commissions applicable to the Shares purchased by such Underwriter, (ii) no
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation, and (iii) no Selling Shareholder
shall be required to contribute any amount in excess of the proceeds received by
such Selling Shareholder from the Underwriters in the offering. The
Underwriters' obligations in this Section 8(d) to contribute are several in
proportion to their respective underwriting obligations and not joint.

                                      -21-
<PAGE>
 
     (e) In any proceeding relating to the Registration Statement, any
Preliminary Prospectus, the Prospectus or any supplement or amendment thereto,
each party against whom contribution may be sought under this Section 8 hereby
consents to the jurisdiction of any court having jurisdiction over any other
contributing party, agrees that process issuing from such court may be served
upon him or it by any other contributing party and consents to the service of
such process and agrees that any other contributing party may join him or it as
an additional defendant in any such proceeding in which such other contributing
party is a party.

9.   DEFAULT BY UNDERWRITERS.  If on the Closing Date or the Option Closing
     -----------------------                                               
Date, as the case may be, any Underwriter shall fail to purchase and pay for the
portion of the Shares which such Underwriter has agreed to purchase and pay for
on such date (otherwise than by reason of any default on the part of the Company
or a Selling Shareholder), you, as Representatives of the Underwriters, shall
use your best efforts to procure within 24 hours thereafter one or more of the
other Underwriters, or any others, to purchase from the Company and the Selling
Shareholders such amounts as may be agreed upon and upon the terms set forth
herein, the Firm Shares or Option Shares, as the case may be, which the
defaulting Underwriter or Underwriters failed to purchase. If during such 24
hours you, as such Representatives, shall not have procured such other
Underwriters, or any others, to purchase the Firm Shares or Option Shares, as
the case may be, agreed to be purchased by the defaulting Underwriter or
Underwriters, then (a) if the aggregate number of shares with respect to which
such default shall occur does not exceed 10% of the Firm Shares or Option
Shares, as the case may be, covered hereby, the other Underwriters shall be
obligated, severally, in proportion to the respective numbers of Firm Shares or
Option Shares, as the case may be, which they are obligated to purchase
hereunder, to purchase the Firm Shares or Option Shares, as the case may be,
which such defaulting Underwriter or Underwriters failed to purchase, or (b) if
the aggregate number of shares of Firm Shares or Option Shares, as the case may
be, with respect to which such default shall occur exceeds 10% of the Firm
Shares or Option Shares, as the case may be, covered hereby, the Company and the
Selling Shareholders or you as the Representatives of the Underwriters will have
the right, by written notice given within the next 24-hour period to the parties
to this Agreement, to terminate this Agreement without liability on the part of
the non-defaulting Underwriters or of the Company or of the Selling Shareholders
except to the extent provided in Section 8 hereof. In the event of a default by
any Underwriter or Underwriters, as set forth in this Section 9, the Closing
Date or Option Closing Date, as the case may be, may be postponed for such
period, not exceeding seven days, as you, as Representatives, may determine in
order that the required changes in the Registration Statement or in the
Prospectus or in any other documents or arrangements may be effected. The term
"Underwriter" includes any person substituted for a defaulting Underwriter. Any
action taken under this Section 9 shall not relieve any defaulting Underwriter
from liability in respect of any default of such Underwriter under this
Agreement.

10.  NOTICES.  All communications hereunder shall be in writing and, except as
     -------                                                                  
otherwise provided herein, will be mailed, delivered or telegraphed and
confirmed as follows:  if to the Underwriters, to Alex. Brown & Sons
Incorporated, 135 East Baltimore Street, Baltimore,

                                      -22-
<PAGE>
 
Maryland 21202, Attention: Steven R. Schuh; if to the Company or the Selling
Shareholders, to Respironics, Inc., 1001 Murry Ridge Drive, Murrysville,
Pennsylvania 15668, Attention: Dennis S. Meteny.

11.  TERMINATION.  This Agreement may be terminated by you by notice to the
     -----------                                                           
Sellers as follows:

     (a) at any time prior to the earlier of (i) the time the Shares are
released by you for sale by notice to the Underwriters, or (ii) 11:30 a.m. on
the first business day following the date of this Agreement;

     (b) at any time prior to the Closing Date if any of the following has
occurred: (i) since the respective dates as of which information is given in the
Registration Statement and the Prospectus, any material adverse change or any
development involving a prospective material adverse change in or affecting the
condition, financial or otherwise, of the Company and its Subsidiaries taken as
a whole or the earnings, business affairs, management or business prospects of
the Company and its Subsidiaries taken as a whole, whether or not arising in the
ordinary course of business, (ii) any outbreak or escalation of hostilities or
declaration of war or national emergency after the date hereof or other national
or international calamity or crisis or change in economic or political
conditions if the effect of such outbreak, escalation, declaration, emergency,
calamity, crisis or change on the financial markets of the United States would,
in your reasonable judgment, make the offering or delivery of the Shares
impracticable or inadvisable, (iii) suspension of trading in securities on the
New York Stock Exchange or the American Stock Exchange or limitation on prices
(other than limitations on hours or numbers of days of trading) for securities
on either such Exchange, (iv) the enactment, publication, decree or other
promulgation of any federal or state statute, regulation, rule or order of any
court or other governmental authority which in your reasonable opinion
materially and adversely affects or will materially or adversely affect the
business or operations of the Company, (v) declaration of a banking moratorium
by either federal or New York State authorities, or (vi) the taking of any
action by any federal, state or local government or agency in respect of its
monetary or fiscal affairs which in your reasonable opinion has a material
adverse effect on the securities markets in the United States; or

     (c) as provided in Sections 6 and 9 of this Agreement.

     This Agreement also may be terminated by you, by notice to the Sellers, as
to any obligation of the Underwriters to purchase the Option Shares, upon the
occurrence at any time prior to the Option Closing Date of any of the events
described in subparagraph (b) above or as provided in Sections 6 and 9 of this
Agreement.

12.  SUCCESSORS.  This Agreement has been and is made solely for the benefit of
     ----------                                                                
the Underwriters , the Company and the Selling Shareholders and their respective
successors, executors, administrators, heirs and assigns, and the officers,
directors and controlling persons

                                      -23-
<PAGE>
 
referred to herein, and no other person will have any right or obligation
hereunder. The term "successors" shall not include any purchaser of the Shares
merely because of such purchase.

13.  MISCELLANEOUS.  The reimbursement, indemnification and contribution
     -------------                                                      
agreements contained in this Agreement and the representations, warranties and
covenants in this Agreement shall remain in full force and effect regardless of
(a) any termination of this Agreement, (b) any investigation made by or on
behalf of any Underwriter or controlling person thereof, or by or on behalf of
the Company or its directors or officers and (c) delivery of and payment for the
Shares under this Agreement.

     This Agreement may be executed in two or more counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and
the same instrument.

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

                                      -24-
<PAGE>
 
     If the foregoing letter is in accordance with your understanding of our
agreement, please sign and return to us the enclosed duplicates hereof,
whereupon it will become a binding agreement among the Selling Shareholders, the
Company and the several Underwriters in accordance with its terms.

                               Very truly yours,

                               RESPIRONICS, INC.



                               By
                                    --------------------------------------------
                                    President


                                    Selling Shareholders listed on Schedule II



                               By 
                                    --------------------------------------------
                                                  Attorney-in-Fact



The foregoing Underwriting Agreement
is hereby confirmed and accepted as
of the date first above written.

ALEX. BROWN & SONS INCORPORATED
COWEN & COMPANY
PARKER/HUNTER INCORPORATED


As Representatives of the several
Underwriters listed on Schedule I

By:  Alex. Brown & Sons Incorporated



By:
     ---------------------------
     Authorized Officer

                                      -25-
<PAGE>
 
                                 SCHEDULE I



                            Schedule of Underwriters


                                    Number of Firm Shares
       Underwriter                     to be Purchased
       -----------                  ---------------------

Alex. Brown & Sons Incorporated

Cowen & Company

Parker/Hunter Incorporated



                                                  
                                                  ----------

                                 Total            
                                                  ----------

                                      -26-
<PAGE>
 
                                  SCHEDULE II



                        Schedule of Selling Shareholders



                             Number of Firm Shares
Selling Shareholder                to be Sold
- -------------------        --------------------------



                                                ----------

                                 Total        
                                                ----------

                                      -27-
<PAGE>
 
                                  SCHEDULE III



                           Schedule of Option Shares



                     Maximum Number           Percentage of
                    of Option Shares         Total Number of
Name of Seller         to be Sold             Option Shares
- --------------    --------------------      -----------------



                                                ------
                                 Total                     100%
                                                ------     --- 

                                      -28-

<PAGE>
 
                                                                    EXHIBIT 5.1
 
                   [LETTERHEAD OF REED SMITH SHAW & MCCLAY]
 
                               February 22, 1996
 
Respironics, Inc.
1001 Murry Ridge Drive
Murrysville, PA 15668
 
  Re: Registration Statement on Form S-3 for the
      Registration of 3,484,500 Shares of Common Stock
      ------------------------------------------------ 
Gentlemen:
 
  We are counsel for Respironics, Inc., a Delaware corporation (the
"Company"), and have acted as such in connection with the proposed sale by the
Company and certain of its stockholders (the "Selling Stockholders") of up to
3,484,500 shares (including 454,500 upon exercise of the Underwriters' over-
allotment) in the aggregate (the "Shares") of the Company's Common Stock, par
value $.01 per share, pursuant to an Underwriting Agreement to be entered into
among the Company, the Selling Stockholders, Alex. Brown & Sons Incorporated,
Cowen & Company and Parker/Hunter Incorporated, as representatives of the
several Underwriters named therein (the "Underwriting Agreement"). This
opinion is furnished in connection with the filing by the Company of a
Registration Statement on Form S-3 under the Securities Act of 1933, as
amended, relating to such proposed sale. We have examined such public and
corporate records and documents and such question of law, and have made such
other investigation, as we deemed appropriate for purposes of this opinion.
 
  Based upon the foregoing, we are pleased to advise you that in our opinion
the Shares, upon issuance and delivery and payment therefor in the manner
described in the Underwriting Agreement, will be duly authorized, validly
issued, fully paid and nonassessable.
 
  In rendering the foregoing opinion, we have not examined the laws of any
jurisdiction other than the laws of the Commonwealth of Pennsylvania, the
corporate laws of the State of Delaware and the federal laws of the United
States of America and the foregoing opinion is limited to such laws.
 
  We hereby consent to the filing of this opinion as an exhibit to such
Registration Statement and to the reference to us under the caption "Legal
Matters" in the Prospectus contained therein.
 
                                          Yours truly,
 
                                          Reed Smith Shaw & McClay
 
JHH:ARN

<PAGE>
 
                                                                   EXHIBIT 23.2
 
                        CONSENT OF INDEPENDENT AUDITORS
 
  We consent to the reference to our firm under the captions "Selected
Financial Data" and "Experts" and the use of our report dated September 11,
1995, in the Registration Statement (Form S-3 No. 333-    ) and related
Prospectus of Respironics, Inc. (the "Company") for the registration of
3,484,500 shares of its Common Stock. We also consent to the incorporation by
reference of our report dated September 11, 1995, with respect to the
consolidated financial statements of the Company included in its Annual Report
(Form 10-K) for the year ended June 30, 1995, filed with the Securities and
Exchange Commission.
 
                                          Ernst & Young LLP
 
Pittsburgh, Pennsylvania
February 21, 1996


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