T F PURIFINER INC
SC 13D/A, 1998-01-30
MOTOR VEHICLE PARTS & ACCESSORIES
Previous: EQUI VANTAGE HOME EQUITY LOAN TRUST 1995-1, 15-15D, 1998-01-30
Next: SUCCESS DEVELOPMENT INTERNATIONAL INC, SB-2/A, 1998-01-30



                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*

                               T/F PURIFINER, INC.
                   -----------------------------------------
                                (Name of Issuer)

                         Common Stock, $0.001 Par Value
                   -----------------------------------------
                         (Title of Class of Securities)

                                    872405105
                            -----------------------
                                 (CUSIP Number)

                              Stephen M. Vine, Esq.
                    Akin, Gump, Strauss, Hauer & Feld, L.L.P.
                               590 Madison Avenue
                            New York, New York 10022
                                 (212) 872-1000
                   -----------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                January 26, 1998
                            -----------------------
                      (Date of Event which Requires Filing
                               of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [_].

Note: Six copies of this statement, including all exhibits, should be filed with
the  Commission.  See Rule 13d- 1(a) for other  parties to whom copies are to be
sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter disclosure
provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).

                         Continued on following page(s)
                               Page 1 of 67 Pages
                             Exhibit Index: Page 13



<PAGE>


                                                              Page 2 of 67 Pages

                                  SCHEDULE 13D

CUSIP No. 872405105


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  QUANTUM INDUSTRIAL PARTNERS LDC

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  WC

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Cayman Islands

                           7        Sole Voting Power
  Number of                                 2,479,091
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   2,479,091
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            2,479,091

12       Check Box If the Aggregate Amount in Row (11) Excludes Certain
         Shares*                                                       [_]

13       Percent of Class Represented By Amount in Row (11)

                                    37.48%

14       Type of Reporting Person*

                  OO; IV

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 3 of 67 Pages

                                  SCHEDULE 13D

CUSIP No. 872405105


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  QIH MANAGEMENT INVESTOR, L.P.

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Delaware

                           7        Sole Voting Power
  Number of                                 2,479,091
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
   Each
  Reporting                9        Sole Dispositive Power
   Person                                   2,479,091
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            2,479,091

12       Check Box If the Aggregate Amount in Row (11) Excludes Certain
         Shares*                                                       [_]

13       Percent of Class Represented By Amount in Row (11)

                                    37.48%

14       Type of Reporting Person*

                  PN; IA

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 4 of 67 Pages

                                  SCHEDULE 13D

CUSIP No. 872405105


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  QIH MANAGEMENT, INC.

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Delaware

                           7        Sole Voting Power
  Number of                                 2,479,091
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
   Each
  Reporting                9        Sole Dispositive Power
   Person                                   2,479,091
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            2,479,091

12       Check Box If the Aggregate Amount in Row (11) Excludes Certain
         Shares*                                                       [_]

13       Percent of Class Represented By Amount in Row (11)

                                    37.48%

14       Type of Reporting Person*

                  CO

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 5 of 67 Pages

                                  SCHEDULE 13D

CUSIP No. 872405105

1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  Soros Fund Management LLC

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Delaware

                           7        Sole Voting Power
 Number of                                  2,479,091
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   2,479,091
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            2,479,091

12       Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares*
                                                                      [_]

13       Percent of Class Represented By Amount in Row (11)

                                            37.48%

14       Type of Reporting Person*

                  OO; IA

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 6 of 67 Pages

                                  SCHEDULE 13D

CUSIP No. 872405105

1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  George Soros (in the capacity described herein)

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  United States

                           7        Sole Voting Power
 Number of                                  0
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  2,479,091
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   0
    With
                           10       Shared Dispositive Power
                                            2,479,091

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            2,479,091

12       Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares*
                                                                           [_]

13       Percent of Class Represented By Amount in Row (11)

                                            37.48%

14       Type of Reporting Person*

                  IA

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 7 of 67 Pages

                                  SCHEDULE 13D

CUSIP No. 872405105


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  Stanley F. Druckenmiller (in the capacity described herein)

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  United States

                           7        Sole Voting Power
 Number of                                  0
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  2,479,091
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   0
    With
                           10       Shared Dispositive Power
                                            2,479,091

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            2,479,091

12       Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares*
                                                                           [_]


13       Percent of Class Represented By Amount in Row (11)

                                    37.48%

14       Type of Reporting Person*

                  IA

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 8 of 67 Pages


                    This  Amendment  No. 1 to Schedule  13D relates to shares of
Common Stock, $0.001 par value per share (the "Shares"), of T/F Purifiner,  Inc.
(the "Issuer"). This Amendment No. 1 supplementally amends the initial statement
on  Schedule  13D dated June 30,  1997 (the  "Initial  Statement")  filed by the
Reporting Persons.  This Amendment No. 1 is being filed by the Reporting Persons
to report that one of the Reporting Persons has entered into certain  agreements
with the Issuer  pursuant  to which the number of Shares of which the  Reporting
Persons  may be deemed  the  beneficial  owners has  increased  by more than one
percent of the total outstanding  Shares.  Capitalized terms used herein but not
defined shall have the meanings ascribed to them in the Initial  Statement.  The
Initial Statement is supplementally amended as follows.

Item 3.             Source and Amount of Funds or Other Consideration.

                    On June 19, 1997, QIP purchased from the Issuer a promissory
note in the original  principal amount of $2,000,000 (the "Note"), a copy of the
form of which is attached as Exhibit G to the Initial Statement.  On January 26,
1998 the Issuer issued a promissory  note (the "Exchange  Note"),  a copy of the
form of which is  attached  hereto  as  Exhibit  I and  incorporated  herein  by
reference in response to this Item 3, in exchange for  cancellation  of the Note
pursuant to the note exchange agreement (the "Note Exchange Agreement"),  a copy
of which is attached hereto as Exhibit J and incorporated herein by reference in
response  to this  Item 3.  Pursuant  to the  terms of the  Exchange  Note,  the
principal  amount of the Exchange Note, or any portion  thereof may, at any time
and at or before the close of business  on January 1, 2003,  be  converted  into
Shares at a conversion  price of $2.75 per Share,  subject to certain  customary
anti-dilution  provisions and other  conditions.  Further,  the Exchange Note is
redeemable  at the option of the Issuer at any time,  in whole or in part,  upon
not less than  thirty  (30) nor more  than  sixty  (60)  days'  notice,  at 100%
principal amount thereof, plus accrued and unpaid interest.

                    In addition,  on January 26, 1998,  QIP  purchased  from the
Issuer a promissory  note in the  principal  amount of $500,000  (the  "$500,000
Note"),  a copy  of the  form a  which  is  attached  hereto  as  Exhibit  K and
incorporated  herein by  reference  in response to this Item 3,  pursuant to the
note purchase  agreement  (the "Note  Purchase  Agreement"),  a copy of which is
attached hereto as Exhibit L and incorporated herein by reference in response to
this Item 3. Pursuant to the terms of the $500,000 Note, the principal amount of
the $500,000 Note, or any portion  thereof may, at any time and at or before the
close of business on January 1, 2003,  be converted  into Shares at a conversion
price of $2.75 per Share, subject to certain customary anti-dilution  provisions
and other conditions.  Further, the $500,000 Note is redeemable at the option of
the Issuer at any time, in whole or in part,  upon not less than thirty (30) nor
more than  sixty (60) days'  notice,  at 100%  principal  amount  thereof,  plus
accrued and unpaid interest.

                    Section  1 of the  Rights  Agreement,  a copy  of  which  is
attached  as  Exhibit  F to the  Initial  Statement,  was  amended  pursuant  to
Amendment No. 1 to Registration  Rights  Agreement,  a copy of which is attached
hereto as Exhibit M and  incorporated  herein by  reference  in response to this
Item 3, to  include  Shares  issuable  pursuant  to the  Exchange  Note  and the
$500,000 Note as "Registrable Securities."

                    The Shares held for the  account of QIP may be held  through
margin accounts maintained with brokers,  which extend margin credit as and when
required  to open or  carry  positions  in their  margin  accounts,  subject  to
applicable  federal  margin  regulations,  stock  exchange rules and such firms'
credit policies. The Shares which may be held in the margin accounts are pledged
as  collateral  security for the repayment of debit  balances in the  respective
accounts.



<PAGE>


                                                              Page 9 of 67 Pages

Item 4.             Purpose of Transaction.

                    All of the Shares  reported  herein as having been  acquired
for or  disposed  of from the  account of QIP were  acquired  or disposed of for
investment  purposes.  Neither the  Reporting  Persons nor, to the best of their
knowledge,  any of the other  individuals  identified in response to Item 2, has
any plans or proposals that relate to or would result in any of the transactions
described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.

                    Mr. Soros, Mr.  Druckenmiller  and SFM LLC reserve the right
to acquire,  or cause to be acquired,  additional  securities of the Issuer,  to
dispose, or cause to be disposed of, such securities at any time or to formulate
other  purposes,  plans  or  proposals  regarding  the  Issuer  or  any  of  its
securities,  to the extent deemed  advisable in light of general  investment and
trading  policies  of the  Reporting  Persons  and/or  the SFM  Clients,  market
conditions or other factors.

Item 5.             Interest in Securities of the Issuer.

                    (a)       Each of the  Reporting  Persons  may be deemed the
beneficial   owner  of  the  2,479,091  Shares  held  for  the  account  of  QIP
(approximately  37.48% of the total number of Shares which would be  outstanding
assuming the exercise or conversion of all of the derivative securities held for
the account of QIP).

                    (b)  (i)  Each of QIP, QIHMI (pursuant to QIP's  constituent
documents), QIH Management (by virtue of its position as sole general partner of
QIHMI) and SFM LLC  (pursuant to the terms of the QIP Contract) may be deemed to
have the sole power to direct the voting and disposition of the 2,479,091 Shares
held for the account of QIP  (assuming  the exercise or conversion of all of the
derivative securities held for the account of QIP).

                         (ii) Pursuant to the terms of the QIP Contract and as a
result of the positions  held by Mr. Soros and Mr.  Druckenmiller  with SFM LLC,
each of Mr.  Soros and Mr.  Druckenmiller  may be deemed to have shared power to
direct the voting and  disposition of the 2,479,091  Shares held for the account
of QIP (assuming the exercise or conversion of all of the derivative  securities
held for the account of QIP).

                    (c)       Except for the  transactions  described  in Item 3
and Item 6 hereto,  there have been no  transactions  with respect to the Shares
since  November  30,  1997 (60 days  prior  to the  date  hereof)  by any of the
Reporting Persons.

                    (d)       The   shareholders  of  QIP,   including   Quantum
Industrial  Holdings,  Ltd., a British  Virgin  Islands  international  business
company,  have the right to  participate  in the receipt of dividends  from,  or
proceeds  from the sale of, the Shares held for the account of QIP in accordance
with their ownership interests in QIP.

                    (e)       Not applicable.

Item 6.             Contracts,  Arrangements,  Understandings  or  Relationships
                    with Respect to Securities of the Issuer.

                    From time to time each of the Reporting  Persons  and/or the
SFM Clients may lend portfolio  securities to brokers,  banks or other financial
institutions.  These  loans  typically  obligate  the  borrower  to  return  the
securities,  or an equal amount of securities  of the same class,  to the lender
and  typically  provide that the borrower is entitled to exercise  voting rights



<PAGE>


                                                             Page 10 of 67 Pages

and to retain  dividends  during the term of the loan.  From time to time to the
extent  permitted by applicable law, each of such persons or entities may borrow
the  Shares  for  the  purpose  of  effecting,   and  may  effect,   short  sale
transactions,  and may purchase  securities for the purpose of closing out short
positions in such securities.

                    Robert Soros,  an employee of SFM LLC, is also a director of
the Issuer.

                    Except  as set  forth  herein  and as  described  in Items 3
hereto, which is incorporated in this Item 6 by reference, the Reporting Persons
and the SFM Clients do not have any contracts,  arrangements,  understandings or
relationships with respect to any securities of the Issuer.

Item 7.             Material to be Filed as Exhibits.

          A.        Power of Attorney dated as of January 1, 1997 granted by Mr.
Soros in favor of Mr. Sean C. Warren and Mr. Michael C. Neus (filed as Exhibit A
to the Initial Statement and incorporated herein by reference).

          B.        Power of Attorney dated as of January 1, 1997 granted by Mr.
Druckenmiller  in favor of Mr. Sean C. Warren and Mr.  Michael C. Neus (filed as
Exhibit B to the Initial Statement and incorporated herein by reference).

          C.        Joint Filing Agreement dated June 30, 1997 by and among QIP,
QIHMI,  QIH  Management,  SFM LLC,  Mr.  Soros and Mr.  Druckenmiller  (filed as
Exhibit C to the Initial Statement and incorporated herein by reference).

          D.        Power of Attorney dated May 23, 1996 granted by QIP in favor
of Mr. Gary Gladstein,  Mr. Sean Warren and Mr. Michael Neus (filed as Exhibit D
to the Initial Statement and incorporated herein by reference).

          E.        Securities  Purchase  Agreement dated as of June 19, 1997 by
and among the  Issuer,  Taylor,  Ford and QIP (filed as Exhibit E to the Initial
Statement and incorporated herein by reference).

          F.        Registration  Rights  Agreement dated as of June 19, 1997 by
and among the Issuer and QIP (filed as Exhibit F to the  Initial  Statement  and
incorporated herein by reference).

          G.        Form of Issuer's  Promissory Note (filed as Exhibit G to the
Initial Statement and incorporated herein by reference).

          H.        Warrant  issued by Issuer to QIP  (filed as Exhibit H to the
Initial Statement and incorporated herein by reference).

          I.        Form of Exchange Promissory Note.

          J.        Note Exchange  Agreement dated January 26, 1998 by and among
the Issuer and QIP.

          K.        Form of $500,000 Note.

          L.        Note Purchase  Agreement dated January 26, 1998 by and among
the Issuer and QIP

          M.        Amendment  No.  1 to  Registration  Rights  Agreement  dated
January 26, 1998, between the Issuer and QIP.


<PAGE>


                                                             Page 11 of 67 Pages

                                   SIGNATURES

                    After reasonable inquiry and to the best of my knowledge and
belief,  the  undersigned  certifies  that  the  information  set  forth in this
statement is true, complete and correct.

Date:  January 29, 1998
                                   QUANTUM INDUSTRIAL PARTNERS LDC

                                   By:  /S/ MICHAEL C. NEUS
                                        ---------------------------------------
                                        Michael C. Neus
                                        Attorney-in-Fact


                                   QIH MANAGEMENT INVESTOR, L.P.

                                   By:  QIH Management, Inc.,
                                        its General Partner

                                        By:  /S/ MICHAEL C. NEUS
                                             ----------------------------------
                                             Michael C. Neus
                                             Vice President


                                   QIH MANAGEMENT, INC.

                                   By:  /S/ MICHAEL C. NEUS
                                        ---------------------------------------
                                        Michael C. Neus
                                        Vice President


                                   SOROS FUND MANAGEMENT LLC

                                   By:  /S/ MICHAEL C. NEUS
                                        ---------------------------------------
                                        Michael C. Neus
                                        Assistant General Counsel




<PAGE>


                                                             Page 12 of 67 Pages

                                   GEORGE SOROS

                                   By:  /S/ MICHAEL C. NEUS
                                        ---------------------------------------
                                        Michael C. Neus
                                        Attorney-in-Fact


                                   STANLEY F. DRUCKENMILLER

                                   By:  /S/ MICHAEL C. NEUS
                                        ---------------------------------------
                                        Michael C. Neus
                                        Attorney-in-Fact





<PAGE>


                                                             Page 13 of 67 Pages

                                  EXHIBIT INDEX

                                                                        Page No.
                                                                        --------

I.        Form  of  Issuer's   $2,000,000   Exchange   Promissory
          Note..........................................................   14

J.        Note Exchange  Agreement  dated January 26, 1998 by and
          among  T/F  Purifiner,   Inc.  and  Quantum  Industrial
          Partners LDC..................................................   29

K.        Form   of    Issuer's    $500,000    Promissory    Note.......   40

L.        Note Purchase  Agreement  dated January 26, 1998 by and
          among  T/F  Purifiner,   Inc.  and  Quantum  Industrial
          Partners LDC..................................................   54

M.        Amendment No. 1 to Registration  Rights Agreement dated
          January 26,  1998,  between  T/F  Purifiner,  Inc.  and
          Quantum Industrial Partners LDC ..............................   65







                                                             Page 14 of 67 Pages

                                    EXHIBIT I


                    THIS SECURITY HAS NOT BEEN  REGISTERED  UNDER THE SECURITIES
ACT OF 1933,  AS  AMENDED,  OR ANY  STATE  SECURITIES  LAWS AND MAY NOT BE SOLD,
ASSIGNED OR OTHERWISE TRANSFERRED OR DISPOSED EXCEPT IN COMPLIANCE WITH SUCH ACT
AND THE APPLICABLE RULES AND REGULATIONS THEREUNDER.

US $2,000,000                                                 New York, New York
                                                                January 26, 1998

                               T/F PURIFINER, INC.

                12% SENIOR SUBORDINATED CONVERTIBLE NOTE DUE 2003

                    T/F Purifiner,  Inc., a Delaware corporation (the "Issuer"),
for value received hereby promises to pay to Quantum Industrial  Partners LDC or
registered  assigns (the "Holder") the principal  amount of TWO MILLION  DOLLARS
($2,000,000)  plus any  accrued  and unpaid  interest at such place or such bank
account  in the  United  States of  America  as the Holder may from time to time
direct on  January  1, 2003 in such coin or  currency  of the  United  States of
America  as at the time of  payment  shall be legal  tender  for the  payment of
public and private debts.

                    This  Security  is  issued   pursuant  to  a  Note  Exchange
Agreement  dated as of January 26, 1998 by and between the Issuer and the Holder
(the "Exchange Agreement").  This Security is transferable and assignable at any
time,  in whole or in part,  to one or more  purchasers  or other  persons.  The
Issuer  agrees to issue  from time to time  replacement  Securities  in the form
hereof to facilitate such transfers and assignments. In addition, after delivery
of an indemnity in form and  substance  satisfactory  to the Issuer,  the Issuer
also agrees to issue  replacement  Securities  for the Security  which have been
lost, stolen, mutilated or destroyed.

                    The  Issuer  shall keep at its  principal  office a register
(the  "Register")  in which  shall be  entered  the names and  addresses  of the
registered  holder(s) of the Security and  particulars  of all  transfers of the
Security. The ownership of the Security shall be proven by the Register. For the
purpose of paying  interest and principal on the  Security,  the Issuer shall be
entitled  to  rely  on  the  name(s)  and   address(es)   in  the  Register  and
notwithstanding anything to the contrary contained in this Security, no Event of
Default (as defined  below) shall occur under  Section 6 if payment of principal
is made in accordance with the names and addresses and particulars  contained in
the Register.

                    No  provision  of this  Security  shall  alter or impair the
obligations  of the Issuer,  which are  absolute and  unconditional,  to pay the
principal of and interest on this Security at the place, times, rate, and in the
currency, herein prescribed.



<PAGE>


                                                             Page 15 of 67 Pages


1.        Principal and Interest
          ----------------------

                    The  principal of this  Security  shall bear interest at the
rate of 12% per annum (the  "Interest  Rate")  which shall  accrue from the most
                             -------------- 
recent  Interest  Payment Date to which interest has been paid on this Security,
or if no interest has been paid on this  Security  from  December 19, 1997 until
payment  in full of the  principal  amount  has been made and be payable in cash
quarterly on April 1, July 1, October 1 and January 1 of each year (an "Interest
                                                                        --------
Payment  Date"),  commencing  on April 1, 1998,  to the Holder  hereof until the
- -------------
principal amount is paid or made available for payment. The interest so payable,
and punctually  paid or duly provided for, on any Interest  Payment will be paid
to the Holder of the  Security  at the close of  business on the Record Date for
the interest  payable on such Interest  Payment Date.  The "Record Date" for any
                                                            -----------
interest  payment is the close of business on March 15, June 15, September 15 or
December  15, as the case may be,  whether  or not a Business  Day,  immediately
preceding the Interest Payment Date on which such Interest is payable; provided,
                                                                       ---------
however,  that at the  option of the  Company,  on any  Interest  Payment  Date,
- -------
interest  may,  in lieu of  being  paid in  cash,  accrue  and be  added  to the
principal  balance  of this  Security.  "Business  Day"  means any day  except a
                                         -------------
Saturday,  Sunday or other day on which commercial banks in the City of New York
are authorized by law to close.

                    Any amounts that have become due and payable  hereunder  and
remain unpaid by the Issuer shall accrue  interest  thereafter  until payment in
full of such amount at the rate of fifteen  percent (15%) (the  "Default  Rate")
                                                                 -------------
per annum and shall be payable upon demand by the Holder.


                    Interest,  whether at the Interest Rate or the Default Rate,
will be computed on the basis of a fraction, the denominator of which is 360 and
the  numerator of which is the actual  number of days elapsed from the date such
interest becomes due and payable.

                    Each of the  Interest  Rate and the  Default  Rate  shall be
effective  both  before and after any  judgment  may be  rendered  in a court of
competent jurisdiction,  provided,  however, that if either the Interest Rate or
Default Rate is deemed to be in excess of the amount  permitted to be charged by
the Issuer  under  applicable  laws,  the Holder shall be entitled to collect an
Interest  Rate or Default  Rate,  as the case may be, only at the  highest  rate
permitted  by law,  and any  interest  collected by the Holder in excess of such
lawful  amount shall be deemed a payment in reduction  of the  Principal  Amount
then outstanding under this Security and shall be so applied.

2.        Subordination
          -------------     

                    The payment obligations  evidenced by this Security shall be
subordinate to any  indebtedness  of the Issuer for cash advanced by any bank or
other  financial  institution  ("Bank  Debt") but shall rank senior to all other
                                 ----------  
indebtedness of the Issuer. The Issuer shall not issue,  directly or indirectly,
any indebtedness which is senior to the indebtedness  evidenced by this Security
unless such indebtedness is Bank Debt.

3.        Redemption
          ----------

                    A.   Optional  Redemption.  This Security will be redeemable
at the option of the Issuer at any time, in whole or in part, upon not less than
thirty  (30) nor more than sixty (60) days'  notice,  at 100%  principal  amount
thereof, plus accrued and unpaid interest.

                                        2

<PAGE>


                                                             Page 16 of 67 Pages

                    At least  thirty (30) days but not more than sixty (60) days
before  a  redemption  date,  the  Issuer  shall  send a notice  of  redemption,
first-class  mail,  postage  prepaid,  facsimile with answer back and courier to
follow to the  Holder(s) of this Security to be redeemed at the  address(es)  of
the Holder as they appear in the Register.

                    If this  Security  is redeemed  subsequent  to a Record Date
with respect to any Interest  Payment  Date  specified  above and on or prior to
such  Interest  Payment  Date,  then any accrued  interest  will be paid on such
Interest Payment Date to the Holder of the Security on such Record Date.

                    B.   Mandatory  Redemption.  The Security will be redeemable
at the option of the  Holder(s)  in whole or in part at any time on or after the
earlier of (i) January 1, 2001 and (ii) the date on which the Issuer raises cash
proceeds  aggregating  at least $10 million  from any  transaction  or series of
transactions  involving  the sale of debt,  equity or assets (a "Put Date") upon
not less than  five (5)  business  days  written  notice  to the  Issuer at 100%
principal amount thereof, plus accrued and unpaid interest. The Issuer covenants
and agrees that it will  immediately  (but in any event  within one (1) Business
Day) advise the Holder of the  occurrence  of any Put Date  described  in clause
(ii) above.

4.        Affirmative Covenants of Issuer
          -------------------------------

                    A.  Visits  and  Inspections.  The  Issuer  will  permit the
Holder,  upon reasonable  notice, to (i) visit and inspect the properties of the
Issuer during business hours,  (ii) inspect and make extracts from and copies of
its books and records,  and (iii) discuss with and obtain  information  from its
principal  officers,  its business,  assets,  liabilities,  financial  position,
results of operations  and business  prospects.  The Issuer will also permit the
Holder  to  discuss  with  its  respective  auditors  its  businesses,   assets,
liabilities, financial positions, results of operations and business prospects.

                    B. Reporting.  The Issuer will make available or cause to be
made available to each Holder as soon as practicable  (except to the extent such
Holder specifically requests otherwise):

                    (i)  all annual,  quarterly and periodic reports  prescribed
                         by  Sections  13,  14 and  15(d)  of the  Exchange  Act
                         (whether   or  not  the   Issuer  is  subject  to  such
                         requirements);

                    (ii) all reports furnished to the Issuer's board members and
                         securityholders;

                    (iii)any reports  (including  management  reports) submitted
                         to  the  Issuer  by  the  Issuer's  independent  public
                         accountants;

                    (iv) a copy of the annual budget for the Issuer (in no event
                         later  than  60 days  after  the  commencement  of each
                         fiscal year) and any material amendment thereto;


                                        3

<PAGE>


                                                             Page 17 of 67 Pages

                    (v)  notice  of  the  commencement  of and  progress  of any
                         material proceedings or investigations by or before any
                         governmental body, court or arbitrator  against,  or to
                         the  extent  known  to the  Issuer,  in any  other  way
                         relating adversely to the Issuer;

                    (vi) notice of any material  adverse  change with respect to
                         the business, financial position, results of operations
                         or prospects of the Issuer;

                    (vii)notice and details of any default or the  occurrence or
                         non-occurrence of any event which constitutes, or which
                         with the  passage  of time or  giving of notice or both
                         would  constitute  a default  by the  Issuer  under any
                         material  agreement  other than this Agreement to which
                         the  Issuer is party or by which any of its  properties
                         may be bound;

                    (viii) such other  information  or reports  relating  to the
                         Issuer as the Holder may reasonably request.

                    C.   Reservation  and Issuance of Common  Stock.  The Issuer
covenants  that it will at all  times  reserve  and  keep  available  out of its
authorized  shares of  Common  Stock par  value  $.001  per share  (the  "Common
                                                                          ------
Stock"),  free from  preemptive  rights,  solely  for the  purpose of issue upon
- -----
conversion of the Securities as herein provided, such number of shares of the as
shall then be issuable  upon the  conversion  of all  outstanding  shares of the
Securities  into Common Stock.  The Issuer  covenants  that all shares of Common
Stock which shall be so issuable shall,  when issued, be duly and validly issued
and fully paid and non-assessable.

                    D.   Compliance With Governmental  Requirements.  The Issuer
covenants  that if any  shares of  Common  Stock  required  to be  reserved  for
purposes of conversion  of Securities  hereunder  require  registration  with or
approval of any  governmental  authority  under any Federal or State law, or any
national securities exchange,  before such shares may be issued upon conversion,
the Issuer will use its best efforts to cause such shares to be duly  registered
or approved, as the case may be.

                    E.   Notification  of  Certain  Matters.  The  Issuer  shall
notify the Holders promptly (and in any event no later than 10 days prior to any
applicable  record date) of any proposal  for the  authorization  or issuance of
rights or other distributions to securityholders,  any subdivision,  combination
or  reclassification  affecting the capital stock,  any merger or  consolidation
affecting the Issuer, the voluntary or involuntary  dissolution,  liquidation or
winding-up of the Issuer or any sale or transfer of any  significant  portion of
the Issuer's assets.

5.        Negative Covenants
          ------------------

                    A.   Restricted  Payments.  Without the written consent of a
majority  of  holders  of  an  aggregate  principal  amount  of  the  Securities
outstanding (the "Majority Holders"), the Issuer will not make to any Person (i)
                  ----------------
any  dividend  or other  payment or  distribution  on any  capital  stock of the
Issuer; (ii) any payment on account of the purchase,  redemption,  retirement or
other  acquisition  of any  shares of the  Issuer's  capital  stock any  option,


                                        4

<PAGE>


                                                             Page 18 of 67 Pages


warrant or other right to acquire shares of the Issuer's capital stock, or (iii)
any defeasance,  redemption,  repurchase or other  acquisition or retirement for
value  prior to  scheduled  maturity  of any  indebtedness  ranked pari passu or
                                                                   ---- -----   
subordinate  in right of payment to the  Securities  and having a maturity  date
subsequent  to the maturity of the  Securities.  "Person"  means an  individual,
                                                  ------
corporation, limited liability company, partnership, association, trust or other
entity or organizations,  including a government or political  subdivision or an
agency or instrumentality thereof.

                    B.   Transactions  with  Affiliates.   Without  the  written
consent of the  Majority  Holders,  the Issuer shall not conduct any business or
enter into any transactions or series of similar  transactions with an Affiliate
of the  Issuer  or any legal or  beneficial  owner of 5% or more of any class of
capital  stock of the Issuer with an Affiliate of such owner unless the terms of
such business transaction or series of transactions are set forth in writing and
as favorable to the Issuer as terms that would be  obtainable  at the time for a
comparable  transaction  or  series  of  similar  transactions  in arm's  length
dealings  with an unrelated  third  person.  For  purposes of this  paragraph B,
Quantum  Industrial  Partners  LDC  shall  not be  deemed  to be and  Affiliate.
Notwithstanding  the  foregoing,  the Issuer shall not make,  or cause any other
party to make, any loans to any shareholders of the Company. The Company further
agrees that it will not enter into any  transaction  with any  Affiliate  or any
legal or  beneficial  owner of 5% or more of any class of  capital  stock of the
Company or an Affiliate or family member of such person unless the terms of such
transaction have been presented to and approved by the Board of Directors of the
Issuer.  "Affiliate" of any Person means any other Person directly or indirectly
          --------- 
controlling  or  controlled by or under direct or indirect  common  control with
such  Person.  For the  purposes of this  definition,  "control"  when used with
respect to any Person means the possession, directly or indirectly, of the power
to direct or cause the direction of the  management and policies of such Person,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
                -----------       ----------
foregoing.

                    C.   Amendment  to Certain  Documents.  The Issuer shall not
enter into any  amendment  of, or agree to or accept or consent to any waiver of
any of the material  provisions of its certificate of  incorporation  (including
any certificate of designation) or By-laws.

                                        5

<PAGE>


                                                             Page 19 of 67 Pages

6.        Default
          -------

                    The occurrence of any of the following  events or conditions
shall  constitute an event of default (each an "Event of Default")  with respect
                                                ----------------  
to the Issuer of this Security:

                    (a)  Any amounts due under this Security are not paid on the
               day after the due date therefore.

                    (b)  The  Issuer or any  subsidiary  of the Issuer (i) shall
               commence  any  case,  proceeding  or other  action  (A) under any
               existing or future law of any jurisdiction,  domestic or foreign,
               relating to bankruptcy, insolvency, reorganization,  arrangement,
               adjustment, winding-up, liquidation,  dissolution, composition or
               other  relief  with  respect to it or its debts,  or (B)  seeking
               appointment  of a receiver,  trustee,  custodian or other similar
               official for it or for all or any substantial part of its assets,
               or Issuer shall make a general  assignment for the benefit of its
               creditors;  or (ii) there shall be commenced  against  Issuer any
               case,  proceeding  or other  action  of a nature  referred  to in
               clause (i) above  which (A)  results in the entry of an order for
               relief or any such  adjudication  or  appointment  or (B) remains
               undismissed, undischarged or unbonded for a period of ninety (90)
               days.

                    (c)  The  Issuer  shall  fail to perform  any  agreement  or
               covenant  on  its  part  contained  herein  or  in  the  Exchange
               Agreement.

                    (d)  Any  default  by  the  Issuer  or any  subsidiary  with
               respect to any  indebtedness  (whether  existing  or  hereinafter
               created)  which would  permit the holder  thereof to declare such
               indebtedness to be due and payable prior to its stated maturity.

                    Upon the occurrence  and during the  continuance of an Event
of  Default,  the Holder will have the  option,  upon  notice to the Issuer,  of
declaring the principal amount  hereunder  together with unpaid accrued interest
thereon to be immediately due and payable.

                    The Issuer agrees to pay on demand all of the Holder's costs
and  expenses,  including  without  limitation  reasonable  attorneys'  fees, in
connection  with the collection of any sums due the Holder,  the  enforcement or
protection of its rights hereunder, any amendment to this Security or any waiver
hereunder or under the Exchange Agreement.

                    No failure on the part of the Holder or other holders hereof
to exercise any right or remedy hereunder, whether before or after the happening
of a  default  shall  constitute  a waiver  thereof,  and no  waiver of any past
default shall constitute  waiver of any future default or of any acceptance of a
past due installment, or indulgence granted from time to time shall be construed
to be a waiver of the right to  insist  upon  prompt  payment  thereafter  or to
impose late charges  retroactively or prospectively,  or shall be deemed to be a
novation of this Security or as a reinstatement  of the debt evidenced hereby or
as a waiver of such right or acceleration or any other right, or be construed so
as to preclude the  exercise of any right which the Holder may have,  whether by
the laws of the State of New York,  by  agreement or  otherwise;  and the Issuer
hereby  expressly  waives the  benefit  of any  statute or rule of law or equity
which would produce a result contrary to or in conflict with the foregoing.


                                        6

<PAGE>

                                                             Page 20 of 67 Pages

7.        Conversion
          ----------

                    Subject to and upon  compliance  with the provisions of this
Section,  the principal amount of this Security,  or any portion thereof may, at
any time  and at or  before  the  close of  business  on  January  1,  2003,  or
thereafter if any Event of Default shall occur and be  continuing,  be converted
into duly authorized,  validly issued,  fully-paid and  nonassessable  shares of
Common  Stock at $2.75  per  share  (the  "Conversion  Price"),  or,  in case an
                                           -----------------  
adjustment in the Conversion Price and the securities or other property issuable
upon  conversion  has taken  place  pursuant  to  Section 8 hereof,  then at the
applicable  Conversion  Price and in such  securities  or other  property  as so
adjusted, upon surrender of the Security or Securities,  the principal amount of
which is so to be  converted,  to the Issuer at any time during  usual  business
hours at the Issuer's  offices,  accompanied  by a written notice of election to
convert as  provided  in the form  attached  hereto  and,  if so required by the
Issuer, by a written  instrument or instruments of transfer in form satisfactory
to the Issuer  duly  executed  by the  registered  holder or his  attorney  duly
authorized in writing.

                    No payment or  adjustment  will be made for dividends on any
Common  Stock  except  as  provided  in  Section 8 hereof.  On  conversion  of a
Security,  that portion of any interest accrued and unpaid interest attributable
to the period from December 19, 1997 to the Conversion  Date with respect to the
converted Security shall not be canceled,  extinguished or forfeited, but rather
shall be deemed to be paid in full to the Holder thereof through delivery of the
Common  Stock,  in exchange for the  Security  being  converted  pursuant to the
provisions  hereof.  If the Holder  converts  more than one Security at the same
time, the number of shares of Common Stock issuable upon the conversion shall be
based on the total Principal Amount of the Securities converted.

                    As promptly as practicable  after the  surrender,  as herein
provided, of any Security or securities for conversion, the Issuer shall deliver
or cause to be  delivered  at its said  office or agency to or upon the  written
order of the holder of the Security or securities  so  surrendered a certificate
or  certificates  representing  the number of duly  authorized,  validly issued,
fully-paid and nonassessable shares of Common Stock, into which such Security or
Securities  may be converted in  accordance  with the  provisions  of Section 7.
Prior to delivery of such certificate or certificates,  the Issuer shall require
a written notice at its said office or agency from the Holder of the Security or
securities so surrendered  stating that the holder irrevocably elects to convert
such  Security  or  Securities,  or, if less than the  entire  principal  amount
thereof is to be converted,  stating the portion  thereof to be converted.  Such
notice shall also state the name or names (with  address and social  security or
other taxpayer  identification number) in which said certificate or certificates
are to be issued.  Such conversion shall be deemed to have been made at the time
that such Security or Securities  shall have been surrendered for conversion and
such notice shall have been received by the Issuer,  the rights of the holder of
such Security or Securities as a  Securityholder  shall cease at such time,  the
person  or  persons  entitled  to  receive  the  shares of  Common  Stock,  upon
conversion of such  Security or Securities  shall be treated for all purposes as
having  become the record  holder or holders of such  shares of Common  Stock at
such time and such conversion shall be at the Conversion Price in effect at such
time.  In the case of any Security  which is  converted in part only,  upon such
conversion,  the Issuer  shall  execute  and deliver to the holder  thereof,  as
requested  by  such  holder,   a  new  Security  or   securities  of  authorized
denominations in aggregate  principal amount equal to the unconverted portion of
such Security.

                                        7

<PAGE>


                                                             Page 21 of 67 Pages


8.        Adjustment of Conversion Price
          ------------------------------

                    The Conversion  Price in effect at any time shall be subject
to  adjustment  from time to time  upon the  happening  of  certain  events,  as
follows:

                    (i)  In case the  Issuer  shall at any time  after  the date
               hereof (1) declare or pay a dividend in shares of Common Stock or
               make  a   distribution   of  Common  Stock,   (2)  subdivide  its
               outstanding  shares of Common Stock,  (3) combine its outstanding
               shares of Common Stock into a smaller  number of shares of Common
               Stock  or  (4)  issue  any  shares  of  its  capital  stock  in a
               reclassification    of   Common   Stock   (including   any   such
               reclassification  in connection with a consolidation or merger in
               which the Issuer is the continuing entity),  the number of shares
               of Common Stock  purchasable  upon conversion  immediately  prior
               thereto  shall be adjusted  so that the Holder of the  Securities
               shall be entitled to receive the number shares of Common Stock or
               other  securities of the Issuer which he would have owned or have
               been entitled to receive after the happening of any of the events
               described above, had conversion occurred immediately prior to the
               happening of such event or any record date with respect  thereto.
               An adjustment  made  pursuant to this  paragraph (i) shall become
               effective  immediately  after the  effective  date of such  event
               retroactive to the record date, if any, for such event.

                    (ii) In case the  Issuer  shall at any time  after  the date
               hereof  issue  rights,  options or warrants to all holders of its
               outstanding  Common  Stock  entitling  them to  subscribe  for or
               purchase  shares  of Common  Stock at a price per share  which is
               lower at the record date  mentioned  below than the higher (A) of
               the  market  price per share of the Common  Stock (as  defined in
               Section (v) below) and (B) the Conversion  Price, then the number
               of shares of Common Stock thereafter  purchasable upon conversion
               shall be determined by multiplying the number of shares of Common
               Stock theretofore  purchasable upon conversion by a fraction,  of
               which the numerator shall be the number of shares of Common Stock
               outstanding  on the  record  date  for  determining  stockholders
               entitled to receive  such  rights,  options or warrants  plus the
               number  of   additional   shares  of  Common  Stock  offered  for
               subscription or purchase,  and of which the denominator  shall be
               the number of shares of Common  Stock  outstanding  on the record
               date  for  determining  stockholders  entitled  to  receive  such
               rights,  options or warrants  plus the number of shares which the
               aggregate  offering price of the total number of shares of Common
               Stock so offered would  purchase at the current  market price per
               share of Common Stock at such record date. Such adjustment  shall
               be made whenever such rights, options or warrants are issued, and
               shall become  effective as of  immediately  after the record date
               for the  determination  of stockholders  entitled to receive such
               rights, options or warrants.

                    (iii)In case the  Issuer  shall at any time  after  the date
               hereof  distribute  to all holders of its shares of Common  Stock
               evidences of its indebtedness or assets (including securities and
               cash  dividends not paid out of funds  legally  available for the
               payment  of  dividends  under  the  laws of the  jurisdiction  of
               incorporation of the Issuer or not made in the ordinary course of


                                        8

<PAGE>


                                                             Page 22 of 67 Pages

               business),  but excluding dividends or distributions  referred to
               in Section (i) above or rights or options or warrants referred to
               in Section (ii) above,  then in each case the number of shares of
               Common Stock  thereafter  purchasable  upon  conversion  shall be
               determined  by  multiplying  the number of shares of Common Stock
               theretofore  purchasable upon conversion by a fraction,  of which
               the  numerator  shall be then  current  market price per share of
               Common  Stock (as  defined in  Section  (v) below) on the date of
               such  distribution,  and of which the  denominator  shall be then
               current  market price per share of Common  Stock,  less then fair
               value (as  reasonably  determined  in good  faith by the Board of
               Directors of the Issuer, whose reasonable  determination shall be
               conclusive)  of  the  portion  of  the  assets  or  evidences  of
               indebtedness  so  distributed or of such  subscription  rights or
               securities  or warrants  applicable to one share of Common Stock.
               Such adjustment  shall be made whenever any such  distribution is
               made,  and shall  become  effective  on the date of  distribution
               retroactive   to  the  record  date  for  the   determination   o
               shareholders entitled to receive such distribution.

                    (iv) In case the  Issuer  shall at any time  after  the date
               hereof issue shares of Common Stock, or rights, options, warrants
               or convertible or exchangeable securities containing the right to
               subscribe for or purchase  shares of Common Stock  (excluding (A)
               shares, rights, options,  warrants or convertible or exchangeable
               securities  issued  in  any  of  the  transactions  described  in
               Sections  (i)  through   (iii)  above  and  (B)  42,650   options
               contemplated  to  be  issued  to  G & S  Technologies,  Inc.,  as
               described in Schedule 3.8 to the Exchange Agreement,  a price per
               share of Common Stock (as  determined in accordance  with Section
               (v)  below)  that is lower  than the  higher  of (A) the  current
               market  value  per  share  of  Common  Stock  (as  determined  in
               accordance  with  Section  (v) below) on the date of such sale or
               issuance  or on the  date  of the  agreement  for  such  sale  or
               issuance  (whichever is more) and (B) the Conversion  Price, then
               in each case the  number of  shares  of Common  Stock  thereafter
               purchasable upon conversion shall be increased by multiplying the
               number of shares of Common Stock theretofore purchasable upon the
               conversion by a fraction, the numerator of which shall be (I) the
               total  number of shares of Common  Stock  issuable in  connection
               with such sale and issuance,  and the  denominator of which shall
               be (II) the number of shares of Common  Stock that the  aggregate
               consideration  received  (determined as provided  below) for such
               sale or  issuance  would  purchase  at the  higher of the  prices
               referred to in (A) and (B) above.  Such adjustment  shall be made
               successively  whenever such an issuance is made. For the purposes
               of such  adjustments,  the shares of Common Stock that the holder
               of such rights, options, warrants, or convertible or exchangeable
               securities  shall be entitled to subscribe for or purchase  shall
               be  deemed to be issued  and  outstanding  as of the date of such
               sale and  issuance and the  consideration  received by the Issuer
               therefor shall be deemed to be the consideration  received by the
               Issuer, plus the consideration or premiums stated in such rights,
               options, warrants or convertible or exchangeable securities to be
               paid for the shares of Common Stock covered thereby.  In case the
               issuer  shall  sell and issue  shares of Common  Stock or rights,
               options,  warrants  or  convertible  or  exchangeable  securities
               containing  the right to subscribe for or purchase  Common Stock,
               for a consideration  consisting, in whole or in part, of property


                                       9

<PAGE>


                                                             Page 23 of 67 Pages

               other than cash or its equivalent, then in determining the "price
               per share of Common Stock" and the "consideration received by the
               Issuer" for purposes of the first  sentence of this Section (iv),
               the  Board of  Directors  of the  Issuer  shall  determine,  on a
               reasonable  basis  and in good  faith,  the  fair  value  of such
               property.  In case  the  Issuer  shall  sell  and  issue  rights,
               options,  warrants  or  convertible  or  exchangeable  securities
               containing  the  right to  subscribe  for or  purchase  shares of
               Common Stock  together with one or more other  securities as part
               of a unit at a price per unit, then in determining the "price per
               share of Common  Stock"  and the  consideration  received  by the
               Issuer for purposes of the first  sentence of this Section  (iv),
               the Board of Directors shall determine, on a reasonable basis and
               in good faith, the fair value of the rights, options, warrants or
               convertible or exchangeable securities then being sold as part of
               such unit.

                    (v)  For the purpose of any computation  under sections (ii)
               through (iv) above,  the current market price per share of Common
               Stock at any date  shall be the  average  of the  current  market
               value  of  Common  Stock  for  the 20  consecutive  trading  days
               commencing 30 trading days prior to such date; provided, that, if
                                                              --------  ----
               the Common Stock is not then publicly traded,  the current market
               price per share shall be the  average of the market  value of the
               Common Stock of the last 20 consecutive trading days prior to the
               last day of  trading;  provided,  however  that  such date is not
               earlier than 180 days prior to the date as of which such price is
               required  to be  determined,  and  otherwise  such price shall be
               determined by an opinion of a nationally  recognized  independent
               investment  bank  selected by the mutual  agreement of the Issuer
               and the  Holder.  In the case of  rights,  options,  warrants  or
               convertible or  exchangeable  securities,  the price per share of
               Common Stock shall be determined by dividing (x) the total amount
               received or receivable by the Issuer in consideration of the sale
               and issuance of such rights, options,  warrants or convertible or
               exchangeable securities,  plus the total consideration payable to
               the Issuer upon exercise or conversion  or exchange  thereof,  by
               (y) the total  number of shares of Common  Stock  covered by such
               rights,   options,   warrants  or  convertible  or   exchangeable
               securities.

                    (vi) No  adjustment  in the number of shares of Common Stock
               convertible  hereunder  shall be required  unless such adjustment
               would  result in an  increase or decrease of at least one percent
               (1%) of the number of shares of Common  Stock for which shares of
               the Securities are  convertible;  provided,  that any adjustments
                                                 --------   ---- 
               which by reason of this  Section (vi) are not required to be made
               shall be carried forward and taken into account in any subsequent
               adjustment.  Whenever an adjustment shall be made pursuant to (i)
               through  (v)  above,  the  Conversion  Price  shall  be  adjusted
               accordingly.  All  calculations  shall  be  made  to the  nearest
               one-thousandth of a share.

                    (vii)No  adjustment  in the number of shares of Common Stock
               received upon conversion need be made under Sections (ii) through
               (iv) above if the Issuer issues or  distributes  to the Holder of
               the  Securities  shares  of Common  Stock,  the  shares,  rights,
               options,   warrants,  or  evidences  of  indebtedness  or  assets


                                       10

<PAGE>


                                                             Page 24 of 67 Pages


               referred to in those  Sections  which such Holder would have been
               entitled to receive had this conversion not occurred prior to the
               happening of such event or the record date with respect thereto.

                    (viii) For the purpose of this  Section 8, the term  "shares
               of Common  Stock" shall mean (i) Common  Stock of the Issuer,  or
               (ii) any other class of stock resulting from  successive  changes
               or  reclassifications of such shares consisting solely of changes
               in par value,  or from par value to no par value,  or from no par
               value to par value. In the event that at any time, as a result of
               an  adjustment  made  pursuant to clause (ii) above,  the Holders
               shall  become  entitled to receive any  securities  of the Issuer
               other than shares of Common Stock,  thereafter the number of such
               other shares so receivable  upon  conversion  shall be subject to
               adjustment  from time to time in a manner  and on terms as nearly
               equivalent as practicable  to the provisions  with respect to the
               shares of Common  Stock  contained  in Section (i)  through  (iv)
               above,  and the other provisions of this Section 8 shall apply on
               like terms to any such other securities.

                    (ix) Except as provided in Sections (i) through (iii) above,
               no adjustment  in respect of any  dividends  shall be made during
               the  term  of  the  Securities  or  upon  the  conversion  of the
               Securities.

                    (x)  Upon the expiration of any rights, options, warrants or
               conversion  or  exchange  privileges  with  respect  to  which an
               adjustment  shall have been made pursuant to Section (ii) or (iv)
               above, if any rights, options, warrants or conversion or exchange
               privileges thereof have not been exercised,  the number of shares
               of Common  Stock  purchasable  upon  conversion  will,  upon such
               expiration, be readjusted and will thereafter be such as it would
               have been had it been  originally  adjusted  (or had the original
               adjustment not been  required,  as the case may be) as if (i) the
               only  shares of Common  Stock so issued were the shares of Common
               Stock, if any,  actually issued or sold upon the exercise of such
               rights,  options or warrants or conversion or exchange rights and
               (ii) such shares of Common Stock, if any, were issued or sold for
               the  consideration  actually  received  by the  Issuer  upon such
               exercise,    conversion    or   exchange   plus   the   aggregate
               consideration,  if any  actually  received  by the Issuer for the
               issuance,  sale or grant of all such rights, options or warrants,
               whether or not exercised.

                    Whenever the number of shares  purchasable  upon  conversion
shall be adjusted as required by the  provisions  of this  Section 8, the Issuer
shall  forthwith file in the custody of its Secretary or an Assistant  Secretary
at its principal  office and with its stock transfer agent, if any, an officers'
certificate showing the adjusted number of shares determined as herein provided,
setting forth in reasonable  detail the facts  requiring such adjustment and the
manner of computing such adjustment.  Each such officers'  certificate  shall be
signed by the chairman,  president or chief financial  officer of the Issuer and
by the secretary or any assistant  secretary of the Issuer.  Each such officers'
certificate  shall be made available at all  reasonable  times for inspection by
any holder of shares of the  Securities  and the Issuer shall,  forthwith  after
each such adjustment,  mail a copy, by first-class  mail, of such certificate to
the each of the Holders.


                                       11

<PAGE>


                                                             Page 25 of 67 Pages

9.        Reclassification, Reorganization, Consolidation or Merger
          ---------------------------------------------------------

                    In case of any reclassification,  capital  reorganization or
other change of  outstanding  shares of Common Stock of the Issuer (other than a
subdivision  or  combination  of the  outstanding  Common Stock and other than a
change  in the par value of Common  Stock)  or in case of any  consolidation  or
merger of the Issuer with or into another  corporation (other than a merger with
a subsidiary in which merger the Issuer is the continuing  corporation  and that
does not result in any reclassification,  capital reorganization or other change
of outstanding  shares of Common Stock of the class issuable upon conversion) or
in case of any sale, lease, transfer or conveyance to another corporation of the
property  and  assets  of the  Issuer  as an  entirety  or  substantially  as an
entirety, the Issuer shall, as a condition precedent to such transaction,  cause
effective  provisions  to be  made so that  the  Holder  shall  have  the  right
thereafter,  by converting such Holder's shares of the securities, to receive in
lieu of the  receipt of shares of Common  Stock the kind and amount of shares of
stock and other  securities and property  (including  cash) receivable upon such
reclassification,    capitalization,    reorganization    and   other    change,
consolidation, merger, sale or conveyance by a holder of the number of shares of
Common Stock that would have been received upon conversion  immediately prior to
such reclassification,  capitalization,  reorganization,  change, consolidation,
merger,  sale or  conveyance.  Any such  provision  shall include  provision for
adjustments in respect of such shares of stock and other securities and property
that shall be as nearly  equivalent  as may be  practicable  to the  adjustments
provided for in this Security.  The foregoing provisions of this paragraph shall
similarly apply to successive  reclassifications,  capital  reorganizations  and
changes of shares of Common  Stock and to  successive  consolidations,  mergers,
sales  or   conveyances.   In  the  event  that  in  connection  with  any  such
capitalization reorganization or reclassification,  consolidation,  merger, sale
or  conveyance,  additional  shares of Common Stock shall be issued in exchange,
conversion, substitution or payment, in whole or in part, for, or of, a security
of the Issuer  other than  Common  Stock,  any such issue shall be treated as an
issue of Common Stock covered by the provisions of Paragraph (iv) of Section 8.

10.       Miscellaneous
          -------------

                    This  Security  shall be deemed to be a  contract  under the
laws of the  State of New  York,  and for all  purposes  shall be  construed  in
accordance  with the laws of said State,  without  regard to any conflict of law
provisions.  The parties hereto,  including all guarantors or endorsers,  hereby
waive presentment,  demand, notice, protest and all other demands and notices in
connection  with the delivery,  acceptance,  performance and enforcement of this
Security,  except as specifically  provided herein,  and assent to extensions of
the time of payment,  or forbearance or other  indulgence  without  notice.  The
Holder of this Security by acceptance of this Security agrees to be bound by the
provisions of this Security which are expressly binding on such Holder.

                    In   determining   whether  the  holders  of  the  requisite
aggregate  principal  amount of  Securities  have  concurred  in any  direction,
consent or waiver under this Security,  Securities which are owned by the Issuer
or any other obligor on the  Securities or by any person  directly or indirectly
controlling or controlled by or under direct or indirect common control with the
Issuer or any other obligor on the Securities  shall be  disregarded  and deemed
not to be outstanding for the purpose of any such  determination;  provided that
                                                                   --------


                                       12

<PAGE>


                                                             Page 26 of 67 Pages


any Securities owned by Quantum Industrial Partners LDC or any Affiliate thereof
shall be deemed outstanding for purposes of making such a determination.

                    The Issuer may not assign any of its rights or delegate  any
of its obligations  under this Security (or any part thereof)  without the prior
written consent of the Holder.

                    The Issuer represents, warrants and covenants to Holder that
it shall use its last  efforts to repay this  Security  in  accordance  with the
terms hereof.

                    The Section  headings  herein are for  convenience  only and
shall not affect the construction hereof.

                                       13

<PAGE>


                                                             Page 27 of 67 Pages

                    IN WITNESS WHEREOF, the Issuer has caused this instrument to
be duly executed under its corporate seal.


                                        T/F PURIFINER, INC.

[Seal]


                                        By   __________________________________
                                             Name:
                                             Title

Dated:    ___________ __, 1998

Attest:


______________________________


                                       14

<PAGE>


                                                             Page 28 of 67 Pages

                           [FORM OF CONVERSION NOTICE]

                12% Senior Subordinated Convertible Note due 2003

To:       T/F Purifiner, Inc.

                    The  undersigned   owner  of  this  Security   hereby:   (i)
irrevocably exercises the option to convert this Security, or the portion hereof
below designated,  for shares of Common Stock, par value $.01 per share ("Common
                                                                          ------
Stock"),  of T/F Purifiner,  Inc. in accordance  with the terms of this Security
- -----
and  (ii)  directs  that  such  shares  of  Common  Stock  deliverable  upon the
conversion,  together  with any check in payment for  fractional  shares and any
Security(ies)  representing any unconverted  principal amount hereof,  be issued
and delivered to the  registered  holder hereof unless a different name has been
indicated  below.  If shares  are to be  delivered  registered  in the name of a
person other than the  undersigned,  the undersigned will pay all transfer taxes
payable with respect thereto.

Dated:    ___________________

                              Name:     _______________________________________

                              _________________________________________________
                              Signature

                              Principal Amount to be Converted: (if less than 
                              all)

                              $    ____________________________________________


                    Fill in for  registration of shares if to be delivered,  and
of  Securities  if to be  issued,  otherwise  than  to and in  the  name  of the
registered holder.

                              _________________________________________________
                              Social Security or Other

                              Taxpayer Identification Number

                              _________________________________________________
                              (Name)

                              _________________________________________________
                              (Street Address)

                              _________________________________________________
                              (City, State and Zip Code)

                                       15





                                                             Page 29 of 67 Pages

                                    EXHIBIT J

                             NOTE EXCHANGE AGREEMENT


          AGREEMENT  dated as of  January  26,  1998  among  Quantum  Industrial
Partners LDC, a Cayman  Islands  exempted  limited  liability  duration  company
("QIP") and T/F Purifiner, Inc., a Delaware corporation (the "Company").


                               W I T N E S S E T H

          WHEREAS,  pursuant to a certain  Securities  Purchase  Agreement dated
June  19,  1997 by and  between  QIP and the  Company,  QIP  purchased  from the
Company,  among other things, a promissory note in the original principal amount
of $2,000,000  dated as of June 19, 1997, a copy of which is attached  hereto as
Exhibit A (the "Original Note");
- ---------

          WHEREAS,   the  Company   desires  to  issue  the  Exchange  Note  (as
hereinafter defined) in payment for the Original Note and has requested that QIP
accept the exchange; and

          WHEREAS, QIP is willing to exchange the Original Note for the Exchange
Note on the terms and subject to the conditions set forth herein.

          NOW, THEREFORE, the parties hereto agree as follows:


                                    ARTICLE I

                                   DEFINITIONS

          1.1  Definitions. The following terms, as used herein, have the
following meanings:

          "Affiliate"  means,  with  respect  to any  Person,  any other  Person
directly or indirectly controlling,  controlled by, or under common control with
such Person.

          "Common Stock" means the Common Stock,  par value $.001 per share,  of
the Company.

          "Encumbrances"  means all  voting  trusts,  arrangements,  stockholder
agreements,  proxies,  liens,  encumbrances,  transfer restrictions,  preemptive
rights, security, interests or community property rights.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Exchange  Note"  shall  have the  meaning  set forth in  Section  2.1
hereof.

          "Material  Adverse  Effect"  means a  material  adverse  effect on the
assets, properties,  business, prospects,  operations or condition, financial or
otherwise, of the Company.


                                        

<PAGE>


                                                             Page 30 of 67 Pages

          "Person" means an individual,  corporation, limited liability company,
partnership,  association,  trust or other entity or  organization,  including a
government or political subdivision or an agency or instrumentality thereof.

          "Registration  Agreement"  means  the  Registration  Rights  Agreement
between  the  Company  and QIP dated as of June 19,  1997,  as  amended  by that
amendment  dated as of the date hereof (the  "Amendment"),  in the form attached
hereto as Exhibit B.

          "SEC Documents" means all documents required to have been filed by the
Company  with the SEC under  Sections  13,  14(a) and 15(d) of the  Exchange Act
since its  registration  of its Common Stock under Section 12(g) of the Exchange
Act.

          "Securities Act" means the Securities Act of 1933, as amended.


                                   ARTICLE II

                                PURCHASE AND SALE

          2.1  Exchange of the Original Note. The Company hereby agrees to issue
the  Company's  12%  Senior  Subordinated  Convertible  Note  in  the  aggregate
principal  amount of $2,000,000,  in the form attached  hereto as Exhibit C (the
"Exchange  Note"),  in exchange for the Original Note,  subject to the terms and
conditions herein set forth, and QIP hereby agrees to exchange the Original Note
for the Exchange Note, subject to the terms and conditions herein set forth.

         2.2  Closing.  The  closing  (the  "Closing")  of the  issuance  of the
Exchange  Note in exchange for the Original Note shall take place at the offices
of Akin, Gump,  Strauss,  Hauer & Feld, L.LP., 590 Madison Avenue, New York, New
York 10022 on the date hereof.  All  transactions at the Closing shall be deemed
to take place simultaneously. At the Closing:

          (a)  QIP shall deliver to the Company the Original Note duly endorsed.

          (b)  The Company shall issue and deliver to QIP the Exchange Note duly
registered in the name of QIP.

          (c)  The Company shall deliver to an account designated by Akin, Gump,
Strauss, Hauer & Feld, L.L.P., the amounts owed it pursuant to Section 6.2.

          Additionally,  in  connection  with the  closing  of the  transactions
contemplated hereby, the Company and QIP shall enter into the Amendment and each
shall make the  closing  deliveries  required  thereby  pursuant  to Article VI,
Closing Deliveries.


                                        2

<PAGE>


                                                             Page 31 of 67 Pages

                                   ARTICLE III

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         The Company hereby represents and warrants to QIP that:

          3.1  Corporate Existence and Power;  Capitalization.  The Company is a
corporation  duly  incorporated  and validly existing and in good standing under
the laws of the State of  Delaware,  and has all  corporate  powers  required to
carry on its business as now being  conducted.  The Company has no subsidiaries.
The  Company  is  authorized  or duly  qualified  to do  business  as a  foreign
corporation and is in good standing in each jurisdiction  where the character of
the  property  owned or leased by it or the nature of its  activities  make such
qualification necessary. The capitalization of the Company as of the date hereof
is set forth on Schedule 3.1 hereto. The SEC Documents  describe  accurately all
outstanding  stock  options,  warrants  and other  rights to purchase any equity
securities  of the Company.  Except as set forth on Schedule  3.1,  there are no
outstanding options,  warrants,  rights to subscribe to, or securities or rights
convertible or exercisable  into or exchangeable for any shares of capital stock
of the Company or  arrangements  by which the Company is or may become  bound to
issue additional shares of its capital stock other than pursuant to the Exchange
Note.

          3.2  Corporate Authorization.  The execution, delivery and performance
by the Company of this  Agreement,  the Exchange  Note and the Amendment and the
consummation by the Company of the transactions contemplated hereby and thereby,
are within the Company's  corporate  power and have been duly  authorized by all
necessary  corporate  action on the part of the  Company.  This  Agreement,  the
Exchange Note and the Amendment have each been duly and validly  executed by the
Company and  constitute  the valid and binding  agreements of the Company,  each
enforceable against the Company in accordance with its terms.

          3.3  Governmental and Court Authorization. The execution, delivery and
performance  by the  Company  of  this  Agreement,  the  Exchange  Note  and the
Amendment  require  no  consent,   approval  or  authorization  of,  or  filing,
registration or qualification  with, any governmental  body,  agency,  official,
court or other authority that has not been obtained or made.

          3.4  Non-Contravention. The execution, delivery and performance by the
Company of this  Agreement,  the Exchange Note and the Amendment do not and will
not (A) contravene or conflict with the Company's  certificate of  incorporation
or by-laws,  or (B) (i) contravene or conflict with or constitute a violation of
any  provision of any federal or state law,  regulation,  judgment,  injunction,
order or decree  binding upon or  applicable  to the  Company,  (ii) require any
consent, approval or other action by any Person or constitute a default under or
give rise to any right of termination, cancellation or acceleration of any right
or obligation of the Company or to a loss of any benefit to which the Company is
entitled under any provision of any  agreement,  contract,  indenture,  lease or
other instrument binding upon the Company or any license,  franchise,  permit or
other similar  authorization held by the Company or (iii) result in the creation
or imposition of any Encumbrances on the Exchange Note.

          3.5  SEC  Documents;   Disclosure  Documents.  Each  report  or  proxy
statement delivered to QIP is a true and complete copy of such document as filed
by the Company with the SEC. The Company has  delivered to QIP all SEC Documents


                                        3

<PAGE>


                                                             Page 32 of 67 Pages

filed  with the SEC since  January 1, 1994.  The  Company  has filed in a timely
manner all  documents  that the Company was  required to file with the SEC under
Sections 13, 14(a) and 15(d) of the Exchange Act since its  registration  of its
Common Stock under  Section  12(g) of the Exchange  Act. As of their  respective
filing dates,  all SEC  Documents  filed by the Company with the SEC complied in
all  material  respects  with  the  Exchange  Act  or  the  Securities  Act,  as
applicable. None of the SEC Documents as of their respective dates contained any
untrue statement of a material fact or omitted to state a material fact required
to be stated therein or necessary to make the statements made therein,  in light
of the circumstances  under which they were made, not misleading.  The financial
statements  of  the  Company  included  in the  SEC  Documents  (the  "Financial
Statements")  complied  as to  form in all  material  respects  with  applicable
accounting  requirements and with the published rules and regulations of the SEC
with respect thereto.  The Financial Statements have been prepared in accordance
with generally accepted accounting  principles  consistently  applied and fairly
present  the  financial  position  of the  Company at the dates  thereof and the
results of operations and cash flows for the periods then ended (subject, in the
case of unaudited statements, to normal, recurring adjustments).

          3.6  Due Authorization and Validity of the Exchange Note. The Exchange
Note has been duly  authorized and when delivered  against  payment  therefor as
contemplated  hereby will be validly issued,  fully paid and  non-assessable and
will not be  subject  to any  preemptive  or similar  rights.  The Common  Stock
issuable  upon  conversion  of the Exchange  Note has been reserved for issuance
and, when issued upon  conversion of the Exchange Note,  will be validly issued,
fully  paid and  non-assessable  and will not be subject  to any  preemptive  or
similar rights.

          3.7  Absence of Certain  Changes.  Except for  liquidity  issues which
have been fully  disclosed  by the  Company  to QIP,  in  connection  with QIP's
representation  on the Board of  Directors  of the Company or  otherwise,  since
September 30, 1997, there has been no Material Adverse Effect.

          3.8  Litigation.  Except as set forth in the SEC  Documents  or as set
forth in Schedule 3.8,  there is no action,  suit,  investigation  or proceeding
pending  against,  or to the  knowledge  of the  Company  threatened  against or
affecting, the Company or any of their respective properties before any court or
arbitrator or any  governmental  body,  agency,  official or authority which (i)
could  reasonably be expected to have a Material  Adverse  Effect or (ii) in any
manner would enjoin, alter, call into question, affect or delay the transactions
contemplated by this Agreement.

          3.9  FIRPTA. The Company is not a "United States real property holding
corporation"  within the meaning of Section  896(c)(2) of the  Internal  Revenue
Code of 1986, as amended.

          3.10 No  Undisclosed  Liabilities.  The Company has no  liabilities or
obligations  not  disclosed  in the SEC  Documents  and  those  incurred  in the
ordinary course of the Company's business since September 30, 1997.

          3.11 No Brokers. The Company has taken no action which would give rise
to any claim by any Person for brokerage  commissions,  finders' fees or similar
payments by QIP  relating to this  Agreement  or the  transactions  contemplated
thereby.


                                        4

<PAGE>


                                                             Page 33 of 67 Pages

          3.12 Disclosure. No representation,  warranty or statement made by the
Company  in  this  Agreement,  the  Registration  Agreement  or  any  agreement,
certificate,  statement or document  furnished by or on behalf of the Company in
connection  herewith or therewith  contains  any untrue  statement of a material
fact or omits to state a material fact necessary in order to make the statements
contained herein or therein, in light of the circumstances under which they were
made, misleading.

          3.13 Transactions  with  Affiliates.  Except  as set  forth in the SEC
Documents or as set forth in Schedule 3.13, there are no business  relationships
or related party  transactions that would be required to be disclosed therein by
Item 404 of Regulation S-K of the SEC that are not so disclosed.

          3.14 Intellectual  Property.  Except as disclosed in the SEC Documents
or Schedule 3.14 hereto:

               (a)  the Company owns, possesses,  controls or is licensed under,
such  patents (or  applications  therefor),  trademarks  and service  marks (and
registrations thereof),  copyrights (and registrations thereof), utility models,
inventions,  know-how,  trade secrets,  and other intellectual  property (all of
aforesaid  referred  to as  "Necessary  Intellectual  Property  Rights")  as are
necessary  for the  operation of the  business now  conducted or operated by the
Company, including but not limited to the property listed on Schedule 3.14;

               (b)  to the  knowledge  of  Company  all  Necessary  Intellectual
Property  Rights are valid and subsisting and the Company is unaware of any fact
which,  individually or in the aggregate,  would materially detrimentally affect
the validity, ownership or enforceability of the Necessary Intellectual Property
Rights;

               (c)  the Company is not aware of, or has not received  notice of,
any asserted  right with respect to any of the Necessary  Intellectual  Property
Rights  which,  if determined  unfavorably  with respect to the interests of the
Company would have a Material Adverse Effect;

               (d)  the Company is unaware of any patent,  trademark,  copyright
or other  intellectual  property  license  to which  the  Company  is a party as
licensor or licensee,  which has been revoked,  terminated or canceled, or which
is likely  or  subject  to being  revoked,  terminated  or  canceled,  where the
revocation,  cancellation or termination  would have a Material  Adverse Effect;
and

               (e)  the Company has not been  notified or advised,  has not been
the recipient of a claim,  or is otherwise  not aware,  that any activity of the
Company  infringes  or  violates  the  patent,  trademark,  copyright  or  other
intellectual property right of any third party.


                                        5

<PAGE>


                                                             Page 34 of 67 Pages

                                   ARTICLE IV

                      REPRESENTATIONS AND WARRANTIES OF QIP

          QIP hereby  represents  and  warrants,  to the  Company as of the date
hereof that:

          4.1  Organization;  Existence. QIP is duly organized, validly existing
and in good standing under the laws of the  jurisdiction  of its  incorporation,
and  QIP has all  necessary  corporate  powers  and  all  material  governmental
licenses,  authorizations,  consents  and  approvals  required  to  carry on its
business as now being conducted.

          4.2  Corporate Authorization.  The execution, delivery and performance
by QIP of this  Agreement and the Amendment and the  consummation  by QIP of the
transactions  contemplated  hereby and thereby are within QIP's corporate powers
and have been duly authorized by all necessary  corporate or other action on the
part of QIP.

          4.3  Governmental and Court Authorization. The execution, delivery and
performance  by QIP of this  Agreement  and the  Amendment  require no  consent,
approval or authorization of, or filing, registration or qualification with, any
governmental  body,  agency,  official,  court  or  authority  that has not been
obtained or made.

          4.4  Non-Contravention. The execution, delivery and performance by QIP
of this  Agreement  and the  Amendment  do not and  will not (A)  contravene  or
conflict with the certificate of incorporation or bylaws of it or (B) contravene
or  conflict  with or  constitute  a  violation  of any  provision  of any  law,
regulation,  judgment, injunction, order or decree binding upon or applicable to
it.

          4.5  Purchase for Investment; Legends.

          (a)  The Exchange Note is being acquired for its own account,  and not
with  a view  to  public  distribution  in  violation  of  the  Securities  Act.
Notwithstanding the foregoing,  QIP shall have the right at all times to sell or
otherwise  dispose of all or any part of the  Exchange  Note or the Common Stock
issuable upon  conversion of the Exchange  Note pursuant to a  registration,  or
exemption therefrom, under the Securities Act. It is an "accredited investor" as
defined in Rule 501 under the Securities Act.

          (b)  Upon original issuance  thereof,  and until such time as the same
is no longer  required under the applicable  requirements of the Securities Act,
the  Exchange  Note  (and all  Common  Stock  issued  in  exchange  therefor  or
substitution thereof) shall bear the following legend:

               THIS  SECURITY HAS NOT BEEN  REGISTERED  UNDER THE
               SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE
               SOLD,  ASSIGNED,   OR  OTHERWISE   TRANSFERRED  OR
               DISPOSED OF EXCEPT IN COMPLIANCE WITH SUCH ACT AND
               THE APPLICABLE RULES AND REGULATIONS THEREUNDER.


                                        6

<PAGE>


                                                             Page 35 of 67 Pages



                                    ARTICLE V

                                    COVENANTS

          5.1  Registration.  If and to the extent required by the  Registration
Agreement,  the Company  agrees that it will register the Common Stock  issuable
upon conversion of the Exchange Note for sale under federal and state securities
laws in accordance with the Registration Agreement.

          5.2  Transactions  with  Affiliates.  So long as the Exchange  Note is
outstanding,  without QIP's written  consent,  the Company shall not conduct any
business or enter into any  transaction or series of similar  transactions  with
any Affiliate of the Company or any legal or  beneficial  owner of 5% or more of
any class of capital stock of the Company with an affiliate of such owner unless
the terms of such business,  transaction or series of transactions are set forth
in writing and as favorable to the Company as terms that would be  obtainable at
the time for a comparable transaction or series of similar transactions in arm's
length  dealings with an unrelated  third  person.  For purposes of this Section
5.2,  the Buyer  shall not be deemed  to be an  Affiliate.  Notwithstanding  the
foregoing,  so long as the Exchange Note is  outstanding,  the Company shall not
make,  or cause any other party to make,  any loans to any  shareholders  of the
Company.  The Company further agrees that it will not enter into any transaction
with any  Affiliate or legal or  beneficial  owner of 5% or more of any class of
capital  stock of the Company or an  Affiliate  or family  member of such person
unless the terms of such  transaction have been presented to and approved by the
Board of Directors of the Company.

          5.3  Restricted Payments. So long as the Exchange Note is outstanding,
the Company will not,  without the prior written  consent of QIP, (i) declare or
pay any  dividend or make any other  payment or  distribution  on account of any
capital  stock of the Company,  (ii)  purchase  redeem or  otherwise  acquire or
retire  for  value  any  capital  stock  of the  Company  or  (iii)  except  for
indebtedness set forth on Schedule 5.3 that the Company is already  committed to
retiring, purchase, redeem, defease or otherwise acquire or retire for value any
indebtedness  that is  subordinate or pari passu to the Note (each a "Restricted
Payment").


                                   ARTICLE VI
                               CLOSING DELIVERIES

          Simultaneously with the execution and delivery of this Agreement,  the
following deliveries shall be made:

          6.1  Amendment to Registration  Rights Agreement.  QIP and the Company
shall enter into the Amendment.

          6.2  Reimbursement.  The  Company  shall have  reimbursed  QIP for its
out-of-pocket  costs and expenses incurred in connection with the closing of the
transactions contemplated by this Agreement and the Amendment.


                                        7

<PAGE>


                                                             Page 36 of 67 Pages

          6.3  Officer's  Certificate.  The Company  shall deliver a certificate
from its Secretary attesting to the authenticity of the following documents: (i)
the  certificate  of  incorporation  of the  Company;  (ii) the  by-laws  of the
Company;  and (iii) the  resolutions of the Company  authorizing the issuance of
the  Exchange  Note and the  exchange of the  Original  Note  therefore  and the
reservation of shares of Common Stock  issuable upon  conversion of the Exchange
Note.

          6.4  Opinion. The Company shall cause Atlas, Pearlman, Trop & Borkson,
P.A., to deliver to QIP an opinion in the form attached hereto as Exhibit C.
                                                                  ---------


                                   ARTICLE VII

                            SURVIVAL; INDEMNIFICATION

          7.1  Survival.   The  covenants,   agreements,   representations   and
warranties  of  the  parties  hereto  contained  in  this  Agreement  or in  any
certificate or other writing delivered pursuant hereto or in connection herewith
shall survive the Closing.

          7.2  Indemnification.  The Company  shall  indemnify and hold harmless
QIP (and its directors,  officers, employees,  Affiliates and permitted assigns)
from and against all losses, liabilities,  charges, damages, deficiencies, costs
and  expenses   (including   interest,   penalties  and   attorney's   fees  and
disbursements)  (collectively,  "Loss"), sustained or incurred by QIP based upon
or arising out of (i) any  inaccuracy or defect or breach of any  representation
or warranty by the Company in this  Agreement or (ii) any failure by the Company
to perform or observe any term or covenant of this Agreement or the Registration
Agreement  required  to be  performed  by it,  and  will  reimburse  QIP for any
reasonable  legal  or  other  expenses  incurred  by it in  connection  with the
investigating or defending of any Loss.


                                        8

<PAGE>


                                                             Page 37 of 67 Pages

                                  ARTICLE VIII

                                  MISCELLANEOUS

          8.1  Notices.  All notices,  requests and other  communications to any
part hereunder shall be in writing  (including  telecopy or similar writing) and
shall be effective upon receipt and shall be given, if to QIP, to:

                                    Quantum Industrial Partners LDC
                                    c/o Curacao Corporation Company, N.V.
                                    Kaya Flamboyan
                                    Willemstad, Curacao
                                    Netherlands, Antilles
                                    Fax: 599-9-322-001

                                    with a copy to:

                                    Soros Fund Management
                                    888 Seventh Avenue
                                    New York, New York  10106
                                    Attention: Michael Neus
                                    Fax: (212) 664-0544

                                    and

                                    Akin, Gump, Strauss, Hauer & Feld, L.L.P.
                                    590 Madison Avenue
                                    New York, New York  10022
                                    Attention: Edward D. Sopher
                                    Fax: (212) 872-1002

                                    If the Company to:

                                    T/F Purifiner, Inc.
                                    3036 High Ridge Road
                                    Suite 100
                                    Boyton Beach, Florida  33426
                                    Attention:  Keith T.J. Hart
                                    Fax:  (561) 547-4025

                                    with a copy to:

                                    Atlas, Pearlman, Trop & Borkson, P.A.
                                    New River Center - Suite 1900
                                    200 East Los Olas Boulevard
                                    Fort Lauderdale, Florida  33301
                                    Attention:  Jim Schneider
                                    Fax:  (954) 523-1952

                                        9

<PAGE>


                                                             Page 38 of 67 Pages


or to such  other  address  or Person as any of the  parties  may  designate  by
written notice hereunder.

          8.2  Amendments: No Waivers.

          (a)  Any provision of this  Agreement may be amended or waived if, and
only if, such  amendment  or waiver is in writing and signed,  in the case of an
amendment,  by QIP and the  Company,  or in the case of a  waiver,  by the party
against whom the waiver is to be effective.

          (b)  No  failure  or delay by either  party in  exercising  any right,
power or privilege  hereunder  shall  operate as a waiver  thereof nor shall any
single or  partial  exercise  thereof  preclude  any other or  further  exercise
thereof or the exercise of any other right,  power or privilege.  The rights and
remedies  herein provided shall be cumulative and not exclusive of any rights or
remedies provided by law;

          8.3  Expenses.  All reasonable  costs and expenses  incurred by QIP in
connection with this Agreement and the Amendment shall be paid by the Company.

          8.4  Successors and Assigns. The provisions of this Agreement shall be
binding upon and inure to the benefit of the parties hereto and their respective
successors and assigns; provided that no party may assign, delegate or otherwise
transfer  any of its rights or  obligations  under this  Agreement  without  the
consent of the other parties hereto.

          8.5  Governing  Law. THIS  AGREEMENT  SHALL BE CONSTRUED IN ACCORDANCE
WITH AND GOVERNED BY THE LAW OF THE STATE OF NEW YORK.

          8.6  Counterparts;  Effectiveness. This Agreement may be signed in any
number of counterparts, each of which shall be an original, with the same effect
as if the  signatures  thereto  and hereto were upon the same  instrument.  This
Agreement  shall become  effective  when each party hereto shall have received a
counterpart hereof signed by the other parties hereto.

          8.7  Entire  Agreement.  This  Agreement,  the  Exchange  Note and the
Amendment  constitute the entire  agreement  between the parties with respect to
the subject matter hereof and supersede all prior agreements, understandings and
negotiations,  both  written and oral,  between the parties  with respect to the
subject matter of this Agreement.

          8.8  Jurisdiction.  Any suit, action or proceeding  seeking to enforce
any provision of, or based on any matter  arising out of or in connection  with,
this Agreement or the  transactions  contemplated  hereby may be brought against
either of the  parties  in the courts of the State of New York in New York City,
or, if it has or can acquire  jurisdiction,  in the United States District Court
for the Southern  District of New York, and each of the parties hereby  consents
to the jurisdiction of such courts (and of the appropriate  appellate courts) in
any such suit,  action or  proceeding  and waives  any  objection  to venue laid
therein.  Process in any such suit,  action or  proceeding  may be served on any
party anywhere in the world, whether within or without the State of New York.


                                       10

<PAGE>


                                                             Page 39 of 67 Pages

          8.9  Captions.  The captions  herein are included for  convenience  of
reference  only and  shall be  ignored  in the  construction  or  interpretation
hereof.

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

                                             QUANTUM INDUSTRIAL PARTNERS LDC


                                             By:  ____________________________
                                                  Name:
                                                  Title:


                                             T/F PURIFINER, INC.


                                             By:  ____________________________
                                                  Name:
                                                  Title:



                                       11





                                                             Page 40 of 67 Pages

                                    EXHIBIT K

                    THIS SECURITY HAS NOT BEEN  REGISTERED  UNDER THE SECURITIES
ACT OF 1933,  AS  AMENDED,  OR ANY  STATE  SECURITIES  LAWS AND MAY NOT BE SOLD,
ASSIGNED OR OTHERWISE TRANSFERRED OR DISPOSED EXCEPT IN COMPLIANCE WITH SUCH ACT
AND THE APPLICABLE RULES AND REGULATIONS THEREUNDER.

US $500,000                                                   New York, New York
                                                                January 26, 1998

                               T/F PURIFINER, INC.

                12% SENIOR SUBORDINATED CONVERTIBLE NOTE DUE 2003

                    T/F Purifiner,  Inc., a Delaware corporation (the "Issuer"),
                                                                       ------
for value received hereby promises to pay to Quantum Industrial  Partners LDC or
registered  assigns (the "Holder") the principal amount of FIVE HUNDRED THOUSAND
DOLLARS  ($500,000)  plus any accrued but unpaid  interest at such place or such
bank account in the United States of America as the Holder may from time to time
direct on  January  1, 2003 in such coin or  currency  of the  United  States of
America  as at the time of  payment  shall be legal  tender  for the  payment of
public and private debts.

                    This  Security  is  issued   pursuant  to  a  Note  Purchase
Agreement  dated as of January 26, 1998 by and between the Issuer and the Holder
(the "Purchase Agreement").  This Security is transferable and assignable at any
      ------------------
time,  in whole or in part,  to one or more  purchasers  or persons.  The Issuer
agrees to issue from time to time  replacement  Securities in the form hereof to
facilitate  such transfers and  assignments.  In addition,  after delivery of an
indemnity  in form and  substance  satisfactory  to the Issuer,  the Issuer also
agrees to issue  replacement  Securities  for the Security which have been lost,
stolen, mutilated or destroyed.

                    The  Issuer  shall keep at its  principal  office a register
(the  "Register")  in which  shall be  entered  the names and  addresses  of the
       --------
registered  holder(s) of the Security and  particulars  of all  transfers of the
Security. The ownership of the Security shall be proven by the Register. For the
purpose of paying  interest and principal on the  Security,  the Issuer shall be
entitled  to  rely  on  the  name(s)  and   address(es)   in  the  Register  and
notwithstanding anything to the contrary contained in this Security, no Event of
Default (as defined  below) shall occur under  Section 6 if payment of principal
is made in accordance with the names and addresses and particulars  contained in
the Register.

                    No  provision  of this  Security  shall  alter or impair the
obligations  of the Issuer,  which are  absolute and  unconditional,  to pay the
principal of and interest on this Security at the place, times, rate, and in the
currency, herein prescribed.


<PAGE>


                                                             Page 41 of 67 Pages



1.        Principal and Interest
          ----------------------

                    The  principal of this  Security  shall bear interest at the
rate of 12% per annum (the  "Interest  Rate")  which shall  accrue from the most
                             -------------- 
recent  Interest  Payment Date to which interest has been paid on this Security,
or if no interest  has been paid on this  Security  from the date  hereof  until
payment  in full of the  principal  amount  has been made and be payable in cash
quarterly on April 1, July 1, October 1 and January 1 of each year (an "Interest
                                                                        --------
Payment  Date"),  commencing  on April 1, 1998,  to the Holder  hereof until the
- -------------
principal amount is paid or made available for payment. The interest so payable,
and punctually  paid or duly provided for, on any Interest  Payment will be paid
to the Holder of the  Security  at the close of  business on the Record Date for
the interest  payable on such Interest  Payment Date.  The "Record Date" for any
                                                            -----------
interest  payment is the close of business on March 15, June 15, September 15 or
December  15, as the case may be,  whether  or not a Business  Day,  immediately
preceding the Interest Payment Date on which such Interest is payable; provided,
                                                                       -------- 
however,  that at the  option of the  Company,  on any  Interest  Payment  Date,
- -------
interest  may,  in lieu of  being  paid in  cash,  accrue  and be  added  to the
principal  balance  of this  Security.  "Business  Day"  means any day  except a
                                         -------------
Saturday,  Sunday or other day on which commercial banks in the City of New York
are authorized by law to close.

                    Any amounts that have become due and payable  hereunder  and
remain unpaid by the Issuer shall accrue  interest  thereafter  until payment in
full of such amount at the rate of fifteen  percent (15%) (the  "Default  Rate")
                                                                 -------------
per annum and shall be payable upon demand by the Holder.

                    Interest,  whether at the Interest Rate or the Default Rate,
will be computed on the basis of a fraction, the denominator of which is 360 and
the  numerator of which is the actual  number of days elapsed from the date such
interest becomes due and payable.

                    Each of the  Interest  Rate and the  Default  Rate  shall be
effective  both  before and after any  judgment  may be  rendered  in a court of
competent jurisdiction,  provided,  however, that if either the Interest Rate or
                         --------   -------
Default Rate is deemed to be in excess of the amount  permitted to be charged by
the Issuer  under  applicable  laws,  the Holder shall be entitled to collect an
Interest  Rate or Default  Rate,  as the case may be, only at the  highest  rate
permitted  by law,  and any  interest  collected by the Holder in excess of such
lawful  amount shall be deemed a payment in reduction  of the  Principal  Amount
then outstanding under this Security and shall be so applied.

2.        Subordination
          -------------

                    The payment obligations  evidenced by this Security shall be
subordinate to any  indebtedness  of the Issuer for cash advanced by any bank or
other  financial  institution  ("Bank  Debt") but shall rank senior to all other
                                 ----------  
indebtedness of the Issuer. The Issuer shall not issue,  directly or indirectly,
any indebtedness which is senior to the indebtedness  evidenced by this Security
unless such indebtedness is Bank Debt.





                                        2

<PAGE>


                                                             Page 42 of 67 Pages

3.        Redemption
          ----------

               A.   Optional Redemption. This Security will be redeemable at the
option of the Issuer at any time, in whole or in part, upon not less than thirty
(30) nor more than sixty (60) days' notice,  at 100% principal  amount  thereof,
plus accrued and unpaid interest.

               At least  thirty  (30)  days but not more  than  sixty  (60) days
before  a  redemption  date,  the  Issuer  shall  send a notice  of  redemption,
first-class mail, postage prepaid,  or facsimile with answer back and courier to
follow,  to the Holder(s) of this Security to be redeemed at the  address(es) of
the Holder as they appear in the Register.

               If this  Security  is redeemed  subsequent  to a Record Date with
respect to any  Interest  Payment Date  specified  above and on or prior to such
Interest  Payment Date, then any accrued  interest will be paid on such Interest
Payment Date to the Holder of the Security on such Record Date.

               B.   Mandatory Redemption. The Security will be redeemable at the
option of the  Holder(s) in whole or in part at any time on or after the earlier
of (i)  January  1,  2001 and (ii) the date on  which  the  Issuer  raises  cash
proceeds  aggregating  at least $10 million  from any  transaction  or series of
transactions  involving  the sale of debt,  equity or assets (a "Put Date") upon
                                                                 --------
not less than  five (5)  business  days  written  notice  to the  Issuer at 100%
principal amount thereof, plus accrued and unpaid interest. The Issuer covenants
and agrees that it will  immediately  (but in any event  within one (1) Business
Day) advise the Holder of the  occurrence  of any Put Date  described  in clause
(ii) above.

4.        Affirmative Covenants of Issuer
          -------------------------------

               A.   Visits and  Inspections.  The Issuer will permit the Holder,
upon  reasonable  notice,  to (i) visit and inspect the properties of the Issuer
during  business  hours,  (ii) inspect and make  extracts from and copies of its
books and  records,  and (iii)  discuss  with and  obtain  information  from its
principal  officers,  its business,  assets,  liabilities,  financial  position,
results of operations  and business  prospects.  The Issuer will also permit the
Holder  to  discuss  with  its  respective  auditors  its  businesses,   assets,
liabilities, financial positions, results of operations and business prospects.

               B.   Reporting.  The Issuer  will make  available  or cause to be
made available to each Holder as soon as practicable  (except to the extent such
Holder specifically requests otherwise):

                    (i)  all annual,  quarterly and periodic reports  prescribed
                         by  Sections  13,  14 and  15(d)  of the  Exchange  Act
                         (whether   or  not  the   Issuer  is  subject  to  such
                         requirements);

                    (ii) all reports furnished to the Issuer's board members and
                         securityholders;

                                        3

<PAGE>


                                                             Page 43 of 67 Pages



                    (iii)any reports  (including  management  reports) submitted
                         to  the  Issuer  by  the  Issuer's  independent  public
                         accountants

                    (iv) a copy of the annual budget for the Issuer (in no event
                         later  than  60 days  after  the  commencement  of each
                         fiscal year) and any material amendment thereto;

                    (v)  notice  of  the  commencement  of and  progress  of any
                         material proceedings or investigations by or before any
                         governmental body, court or arbitrator  against,  or to
                         the  extent  known  to the  Issuer,  in any  other  way
                         relating adversely to the Issuer;

                    (vi) notice of any material  adverse  change with respect to
                         the business, financial position, results of operations
                         or prospects of the Issuer;

                    (vii)notice and details of any default or the  occurrence or
                         non-occurrence of any event which constitutes, or which
                         with the  passage  of time or  giving of notice or both
                         would  constitute  a default  by the  Issuer  under any
                         material  agreement  other than this Agreement to which
                         the  Issuer is party or by which any of its  properties
                         may be bound;

                    (viii) such other  information  or reports  relating  to the
                         Issuer as the Holder may reasonably request.

               C.   Reservation  and  Issuance  of  Common  Stock.   The  Issuer
covenants  that it will at all  times  reserve  and  keep  available  out of its
authorized  shares of  Common  Stock par  value  $.001  per share  (the  "Common
                                                                          ------
Stock"),  free from  preemptive  rights,  solely  for the  purpose of issue upon
- -----
conversion of the Securities as herein provided, such number of shares of the as
shall then be issuable  upon the  conversion  of all  outstanding  shares of the
Securities  into Common Stock.  The Issuer  covenants  that all shares of Common
Stock which shall be so issuable shall,  when issued, be duly and validly issued
and fully paid and non-assessable.

               D.   Compliance  With  Governmental   Requirements.   The  Issuer
covenants  that if any  shares of  Common  Stock  required  to be  reserved  for
purposes of conversion  of Securities  hereunder  require  registration  with or
approval of any  governmental  authority  under any Federal or State law, or any
national securities exchange,  before such shares may be issued upon conversion,
the Issuer will use its best efforts to cause such shares to be duly  registered
or approved, as the case may be.

               E.   Notification of Certain Matters. The Issuer shall notify the
Holders promptly (and in any event no later than 10 days prior to any applicable
record  date) of any  proposal  for the  authorization  or issuance of rights or
other  distributions  to  securityholders,   any  subdivision,   combination  or
reclassification  affecting  the  capital  stock,  any  merger or  consolidation
affecting the Issuer, the voluntary or involuntary  dissolution,  liquidation or
winding-up of the Issuer or any sale or transfer of any  significant  portion of
the Issuer's assets.


                                        4

<PAGE>


                                                             Page 44 of 67 Pages

5.        Negative Covenants
          ------------------

               A.   Restricted  Payments.  Without  the  written  consent  of  a

majority  of  holders  of  an  aggregate  principal  amount  of  the  Securities
outstanding (the "Majority Holders"), the Issuer will not make to any Person (i)
                  ----------------  
any  dividend  or other  payment or  distribution  on any  capital  stock of the
Issuer; (ii) any payment on account of the purchase,  redemption,  retirement or
other  acquisition  of any  shares of the  Issuer's  capital  stock any  option,
warrant or other right to acquire shares of the Issuer's capital stock, or (iii)
any defeasance,  redemption,  repurchase or other  acquisition or retirement for
value  prior to  scheduled  maturity  of any  indebtedness  ranked pari passu or
subordinate  in right of payment to the  Securities  and having a maturity  date
subsequent  to the maturity of the  Securities.  "Person"  means an  individual,
                                                  ------
corporation, limited liability company, partnership, association, trust or other
entity or organizations,  including a government or political  subdivision or an
agency or instrumentality thereof.

               B.   Transactions with Affiliates. Without the written consent of
the  Majority  Holders,  the Issuer shall not conduct any business or enter into
any  transactions  or series of similar  transactions  with an  Affiliate of the
Issuer or any legal or  beneficial  owner of 5% or more of any class of  capital
stock of the Issuer  with an  Affiliate  of such owner  unless the terms of such
business  transaction or series of transactions  are set forth in writing and as
favorable  to the  Issuer as terms that  would be  obtainable  at the time for a
comparable  transaction  or  series  of  similar  transactions  in arm's  length
dealings with an unrelated  third person.  For purposes of this paragraph B, the
Quantum  Industrial  Partners  LDC shall not be deemed to be an  Affiliate.  The
Issuer  shall  not  make,  or  cause  any  other  party to  make,  any  loans to
shareholders  of the Issuer.  The Issuer  further  agrees that it will not enter
into any  transaction  with any Affiliate or legal or beneficial  owner of 5% or
more of any class of  capital  stock of the  Issuer or and  Affiliate  or family
member of such Person unless the terms of such  transaction  have been presented
to and  approved by the Board of  Directors  of the Issuer.  "Affiliate"  of any
                                                              ---------   
Person means any other Person  directly or indirectly  controlling or controlled
by or under direct or indirect common control with such Person. For the purposes
of this  definition,  "control"  when used with  respect to any Person means the
possession,  directly  or  indirectly,  of the  power to  direct  or  cause  the
direction of the  management  and policies of such Person,  whether  through the
ownership  of  voting  securities,  by  contract  or  otherwise;  and the  terms
"controlling"  and  "controlled"   have  meanings correlative  to the foregoing.
 -----------         ----------

               C.   Amendment to Certain  Documents.  The Issuer shall not enter
into any  amendment of, or agree to or accept or consent to any waiver of any of
the material  provisions of its  certificate  of  incorporation  (including  any
certificate of designation) or By-laws.

                                        5

<PAGE>


                                                             Page 45 of 67 Pages



6.        Default
          -------

               The occurrence of any of the following events or conditions shall
constitute an event of default (each an "Event of Default")  with respect to the
                                         ----------------
Issuer of this Security:

               (a)  Any amounts due under this  Security are not paid on the day
          after the due date therefore.

               (b)  The  Issuer  or any  subsidiary  of  the  Issuer  (i)  shall
          commence any case,  proceeding  or other action (A) under any existing
          or future law of any  jurisdiction,  domestic or foreign,  relating to
          bankruptcy,  insolvency,   reorganization,   arrangement,  adjustment,
          winding-up, liquidation, dissolution, composition or other relief with
          respect to it or its debts, or (B) seeking  appointment of a receiver,
          trustee,  custodian or other similar official for it or for all or any
          substantial  part  of its  assets,  or  Issuer  shall  make a  general
          assignment  for the benefit of its  creditors;  or (ii) there shall be
          commenced  against  Issuer any case,  proceeding  or other action of a
          nature  referred to in clause (i) above which (A) results in the entry
          of an order for relief or any such  adjudication or appointment or (B)
          remains  undismissed,  undischarged or unbonded for a period of ninety
          (90) days.

               (c)  The Issuer  shall fail to perform any  agreement or covenant
          on its part contained herein or in the Purchase Agreement.

               (d)  Any default by the Issuer or any subsidiary  with respect to
          any indebtedness (whether existing or hereinafter created) which would
          permit the holder thereof to declare such  indebtedness  to be due and
          payable prior to its stated maturity.

               Upon the  occurrence  and during the  continuance  of an Event of
Default,  the  Holder  will  have the  option,  upon  notice to the  Issuer,  of
declaring the principal amount  hereunder  together with unpaid accrued interest
thereon to be immediately due and payable.

               The Issuer agrees to pay on demand all of the Holder's  costs and
expenses, including without limitation reasonable attorneys' fees, in connection
with the collection of any sums due the Holder, the enforcement or protection of
its rights hereunder,  any amendment to this Security or any waiver hereunder or
under the Purchase Agreement.

               No failure on the part of the Holder or other  holders  hereof to
exercise any right or remedy hereunder, whether before or after the happening of
a default shall  constitute a waiver thereof,  and no waiver of any past default
shall constitute waiver of any future default or of any acceptance of a past due
installment,  or indulgence granted from time to time shall be construed to be a
waiver of the right to insist upon prompt  payment  thereafter or to impose late
charges  retroactively or prospectively,  or shall be deemed to be a novation of
this Security or as a reinstatement  of the debt evidenced hereby or as a waiver
of such right or  acceleration  or any other  right,  or be  construed  so as to
preclude  the  exercise of any right  which the Holder may have,  whether by the
laws of the State of New York, by agreement or otherwise;  and the Issuer hereby
expressly waives the benefit of any statute or rule of law or equity which would
produce a result contrary to or in conflict with the foregoing.




                                        7

<PAGE>


                                                             Page 46 of 67 Pages
7.        Conversion
          ----------

               Subject  to and  upon  compliance  with  the  provisions  of this
Section,  the principal  amount of this Security or any portion  thereof may, at
any time  and at or  before  the  close of  business  on  January  1,  2003,  or
thereafter if any Event of Default shall occur and be  continuing,  be converted
into duly authorized,  validly issued,  fully-paid and  nonassessable  shares of
Common  Stock at $2.75  per  share  (the  "Conversion  Price"),  or,  in case an
                                           -----------------
adjustment in the Conversion Price and the securities or other property issuable
upon  conversion  has taken  place  pursuant  to  Section 8 hereof,  then at the
applicable  Conversion  Price and in such  securities  or other  property  as so
adjusted, upon surrender of the Security or Securities,  the principal amount of
which is so to be  converted,  to the Issuer at any time during  usual  business
hours at the Issuer's  offices,  accompanied  by a written notice of election to
convert as  provided  in the form  attached  hereto  and,  if so required by the
Issuer, by a written  instrument or instruments of transfer in form satisfactory
to the Issuer  duly  executed  by the  registered  holder or his  attorney  duly
authorized in writing.

               No payment or adjustment will be made for dividends on any Common
Stock except as provided in Section 8 hereof. On conversion of a Security,  that
portion of any interest  accrued and unpaid interest  attributable to the period
from the  date of the  Security  to the  Conversion  Date  with  respect  to the
converted Security shall not be canceled,  extinguished or forfeited, but rather
shall be deemed to be paid in full to the Holder thereof through delivery of the
Common  Stock,  in exchange for the  Security  being  converted  pursuant to the
provisions  hereof.  If the Holder  converts  more than one Security at the same
time, the number of shares of Common Stock issuable upon the conversion shall be
based on the total Principal Amount of the Securities converted.

               As  promptly  as  practicable  after  the  surrender,  as  herein
provided, of any Security or securities for conversion, the Issuer shall deliver
or cause to be  delivered  at its said  office or agency to or upon the  written
order of the holder of the Security or securities  so  surrendered a certificate
or  certificates  representing  the number of duly  authorized,  validly issued,
fully-paid and nonassessable shares of Common Stock, into which such Security or
Securities  may be converted in  accordance  with the  provisions  of Section 7.
Prior to delivery of such certificate or certificates,  the Issuer shall require
a written notice at its said office or agency from the Holder of the Security or
securities so surrendered  stating that the holder irrevocably elects to convert
such  Security  or  Securities,  or, if less than the  entire  principal  amount
thereof is to be converted,  stating the portion  thereof to be converted.  Such
notice shall also state the name or names (with  address and social  security or
other taxpayer  identification number) in which said certificate or certificates
are to be issued.  Such conversion shall be deemed to have been made at the time
that such Security or Securities  shall have been surrendered for conversion and
such notice shall have been received by the Issuer,  the rights of the holder of
such Security or Securities as a  Securityholder  shall cease at such time,  the
person  or  persons  entitled  to  receive  the  shares of  Common  Stock,  upon
conversion of such  Security or Securities  shall be treated for all purposes as
having  become the record  holder or holders of such  shares of Common  Stock at
such time and such conversion shall be at the Conversion Price in effect at such
time.  In the case of any Security  which is  converted in part only,  upon such
conversion,  the Issuer  shall  execute  and deliver to the holder  thereof,  as
requested  by  such  holder,   a  new  Security  or   securities  of  authorized
denominations in aggregate  principal amount equal to the unconverted portion of
such Security.

8.        Adjustment of Conversion Price
          ------------------------------

               The  Conversion  Price in effect at any time  shall be subject to
adjustment from time to time upon the happening of certain events, as follows:

                                        7

<PAGE>


                                                             Page 47 of 67 Pages

               (i)  In case the Issuer  shall at any time after the date  hereof
          (1)  declare  or pay a  dividend  in shares of Common  Stock or make a
          distribution of Common Stock, (2) subdivide its outstanding  shares of
          Common Stock, (3) combine its outstanding  shares of Common Stock into
          a smaller  number of shares of Common Stock or (4) issue any shares of
          its capital stock in a reclassification of Common Stock (including any
          such  reclassification in connection with a consolidation or merger in
          which the Issuer is the  continuing  entity),  the number of shares of
          Common Stock  purchasable  upon conversion  immediately  prior thereto
          shall  be  adjusted  so that the  Holder  of the  Securities  shall be
          entitled  to  receive  the  number  shares  of  Common  Stock or other
          securities  of the  Issuer  which he  would  have  owned or have  been
          entitled to receive after the happening of any of the events described
          above, had conversion  occurred  immediately prior to the happening of
          such event or any record date with respect thereto. An adjustment made
          pursuant to this  paragraph  (i) shall  become  effective  immediately
          after the effective date of such event retroactive to the record date,
          if any, for such event.

               (ii) In case the Issuer  shall at any time after the date  hereof
          issue  rights,  options or warrants to all holders of its  outstanding
          Common Stock  entitling  them to subscribe  for or purchase  shares of
          Common  Stock at a price per share  which is lower at the record  date
          mentioned  below than the higher (A) of the market  price per share of
          the  Common  Stock (as  defined  in  Section  (v)  below)  and (B) the
          Conversion Price, then the number of shares of Common Stock thereafter
          purchasable  upon  conversion  shall be determined by multiplying  the
          number  of  shares  of  Common  Stock  theretofore   purchasable  upon
          conversion by a fraction,  of which the numerator  shall be the number
          of  shares  of  Common  Stock  outstanding  on  the  record  date  for
          determining  stockholders entitled to receive such rights,  options or
          warrants plus the number of additional  shares of Common Stock offered
          for  subscription or purchase,  and of which the denominator  shall be
          the number of shares of Common  Stock  outstanding  on the record date
          for determining  stockholders entitled to receive such rights, options
          or warrants  plus the number of shares  which the  aggregate  offering
          price of the total number of shares of Common  Stock so offered  would
          purchase at the current market price per share of Common Stock at such
          record  date.  Such  adjustment  shall be made  whenever  such rights,
          options or  warrants  are issued,  and shall  become  effective  as of
          immediately   after  the  record   date  for  the   determination   of
          stockholders entitled to receive such rights, options or warrants.

               (iii)In case the Issuer  shall at any time after the date  hereof
          distribute  to all holders of its shares of Common Stock  evidences of
          its  indebtedness or assets  (including  securities and cash dividends
          not paid out of funds  legally  available for the payment of dividends
          under the laws of the  jurisdiction of  incorporation of the Issuer or
          not made in the ordinary course of business),  but excluding dividends
          or distributions referred to in Section (i) above or rights or options
          or warrants  referred to in Section (ii) above,  then in each case the
          number  of  shares  of  Common  Stock   thereafter   purchasable  upon
          conversion  shall be determined by multiplying the number of shares of
          Common Stock theretofore purchasable upon conversion by a fraction, of
          which the  numerator  shall be then current  market price per share of
          Common  Stock (as  defined in  Section  (v) below) on the date of such
          distribution,  and of which  the  denominator  shall  be then  current
          market  price  per  share of Common  Stock,  less then fair  value (as
          reasonably  determined  in good faith by the Board of Directors of the


                                        8

<PAGE>


                                                             Page 48 of 67 Pages

          Issuer,  whose  reasonable  determination  shall be conclusive) of the
          portion of the assets or evidences of  indebtedness  so distributed or
          of such  subscription  rights or securities or warrants  applicable to
          one share of Common Stock.  Such adjustment shall be made whenever any
          such  distribution is made, and shall become  effective on the date of
          distribution  retroactive to the record date for the  determination  o
          shareholders entitled to receive such distribution.

               (iv) In case the Issuer shall any time after the date hereof sell
          and issue  shares of Common  Stock,  or rights,  options,  warrants or
          convertible  or  exchangeable   securities  containing  the  right  to
          subscribe  for or  purchase  shares of  Common  Stock  (excluding  (A)
          shares,  rights,  options,  warrants or  convertible  or  exchangeable
          securities issued in any of the transactions described in Sections (i)
          through (iii) above and (B) 42,650 options  contemplated  to be issued
          to G & S Technologies,  Inc. as described in Schedule 3.8 the Purchase
          Agreement),  a price  per  share of Common  Stock  (as  determined  in
          accordance  with  Section  (v) below) that is lower than the higher of
          (A) the current  market value per share of Common Stock (as determined
          in  accordance  with  Section  (v)  below) on the date of such sale or
          issuance  or on the date of the  agreement  for such sale or  issuance
          (whichever is less) and (B) the  Conversion  Price,  then in each case
          the  number  of shares of Common  Stock  thereafter  purchasable  upon
          conversion  shall be increased by multiplying  the number of shares of
          Common  Stock  theretofore   purchasable  upon  the  conversion  by  a
          fraction,  the  numerator  of which  shall be (I) the total  number of
          shares of  Common  Stock  issuable  in  connection  with such sale and
          issuance,  and the  denominator  of which  shall be (II) the number of
          shares of  Common  Stock  that the  aggregate  consideration  received
          (determined  as  provided  below)  for  such  sale or  issuance  would
          purchase at the higher of the prices referred to in (A) and (B) above.
          Such adjustment shall be made  successively  whenever such an issuance
          is made.  For the purposes of such  adjustments,  the shares of Common
          Stock  that  the  holder  of  such  rights,   options,   warrants,  or
          convertible or exchangeable  securities shall be entitled to subscribe
          for or purchase shall be deemed to be issued and outstanding as of the
          date of such sale and issuance and the  consideration  received by the
          Issuer  therefor shall be deemed to be the  consideration  received by
          the Issuer,  plus the consideration or premiums stated in such rights,
          options, warrants or convertible or exchangeable securities to be paid
          for the shares of Common  Stock  covered  thereby.  In case the issuer
          shall  sell and  issue  shares  of Common  Stock or  rights,  options,
          warrants or  convertible  or  exchangeable  securities  containing the
          right to subscribe for or purchase  Common Stock,  for a consideration
          consisting,  in whole or in part,  of property  other than cash or its
          equivalent,  then in determining the "price per share of Common Stock"
          and the  "consideration  received by the  Issuer" for  purposes of the
          first  sentence of this  Section  (iv),  the Board of Directors of the
          Issuer shall  determine,  on a reasonable basis and in good faith, the
          fair value of such  property.  In case the Issuer shall sell and issue
          rights,  options,  warrants or convertible or exchangeable  securities
          containing  the right to  subscribe  for or purchase  shares of Common
          Stock together with one or more other  securities as part of a unit at
          a price per unit,  then in determining  the "price per share of Common
          Stock" and the  consideration  received by the Issuer for  purposes of
          the first sentence of this Section (iv), the Board of Directors  shall
          determine,  on a reasonable basis and in good faith, the fair value of
          the  rights,   options,   warrants  or  convertible  or   exchangeable
          securities then being sold as part of such unit.

                                       9

<PAGE>


                                                             Page 49 of 67 Pages

               (v)  For the  purpose  of any  computation  under  sections  (ii)
          through (iv) above, the current market price per share of Common Stock
          at any date shall be the average of the current market value of Common
          Stock for the 20 consecutive  trading days  commencing 30 trading days
          prior to such date;  provided,  that,  if the Common Stock is not then
                               --------   ----
          publicly  traded,  the  current  market  price per share  shall be the
          average  of the  market  value  of the  Common  Stock  of the  last 20
          consecutive  trading days prior to the last day of trading;  provided,
          however  that such date is not earlier than 180 days prior to the date
          as of which such price is required  to be  determined,  and  otherwise
          such  price  shall  be  determined  by  an  opinion  of  a  nationally
          recognized   independent   investment  bank  selected  by  the  mutual
          agreement  of the  Issuer  and the  Holder.  In the  case  of  rights,
          options, warrants or convertible or exchangeable securities, the price
          per share of Common  Stock shall be  determined  by  dividing  (x) the
          total amount received or receivable by the Issuer in  consideration of
          the sale and issuance of such rights, options, warrants or convertible
          or exchangeable  securities,  plus the total consideration  payable to
          the Issuer upon exercise or conversion or exchange thereof, by (y) the
          total  number  of  shares  of Common  Stock  covered  by such  rights,
          options, warrants or convertible or exchangeable securities.

               (vi) No  adjustment  in the  number of  shares  of  Common  Stock
          convertible  hereunder shall be required unless such adjustment  would
          result in an increase or decrease of at least one percent  (1%) of the
          number of shares of Common  Stock for which  shares of the  Securities
          are  convertible;  provided,  that any adjustments  which by reason of
                             --------   ---- 
          this Section (vi) are not required to be made shall be carried forward
          and taken  into  account in any  subsequent  adjustment.  Whenever  an
          adjustment  shall be made  pursuant  to (i)  through  (v)  above,  the
          Conversion Price shall be adjusted accordingly. All calculations shall
          be made to the nearest one-thousandth of a share.

               (vii)No  adjustment  in the  number of  shares  of  Common  Stock
          received upon conversion need be made under Sections (ii) through (iv)
          above  if the  Issuer  issues  or  distributes  to the  Holder  of the
          Securities  shares of  Common  Stock,  the  shares,  rights,  options,
          warrants,  or evidences of indebtedness or assets referred to in those
          Sections  which such  Holder  would have been  entitled to receive had
          this  conversion  not occurred prior to the happening of such event or
          the record date with respect thereto.

               (viii) For the  purpose of this  Section  8, the term  "shares of
          Common  Stock" shall mean (i) Common Stock of the Issuer,  or (ii) any
          other   class  of  stock   resulting   from   successive   changes  or
          reclassifications  of such shares  consisting solely of changes in par
          value,  or from par value to no par value, or from no par value to par
          value.  In the event  that at any time,  as a result of an  adjustment
          made pursuant to clause (ii) above,  the Holders shall become entitled
          to receive any  securities  of the Issuer  other than shares of Common
          Stock,  thereafter the number of such other shares so receivable  upon
          conversion  shall be  subject  to  adjustment  from  time to time in a
          manner  and on  terms  as  nearly  equivalent  as  practicable  to the
          provisions  with  respect to the shares of Common  Stock  contained in
          Section  (i)  through  (iv) above,  and the other  provisions  of this
          Section 8 shall apply on like terms to any such other securities.

                                       10

<PAGE>


                                                             Page 50 of 67 Pages

               (ix) Except as provided in Sections (i) through  (iii) above,  no
          adjustment in respect of any  dividends  shall be made during the term
          of the Securities or upon the conversion of the Securities.

               (x)  Upon the  expiration  of any  rights,  options,  warrants or
          conversion or exchange  privileges with respect to which an adjustment
          shall have been made  pursuant to Section  (ii) or (iv) above,  if any
          rights, options, warrants or conversion or exchange privileges thereof
          have  not been  exercised,  the  number  of  shares  of  Common  Stock
          purchasable upon conversion will, upon such expiration,  be readjusted
          and  will  thereafter  be  such  as it  would  have  been  had it been
          originally adjusted (or had the original adjustment not been required,
          as the case  may be) as if (i) the  only  shares  of  Common  Stock so
          issued were the shares of Common  Stock,  if any,  actually  issued or
          sold  upon  the  exercise  of such  rights,  options  or  warrants  or
          conversion or exchange rights and (ii) such shares of Common Stock, if
          any, were issued or sold for the  consideration  actually  received by
          the  Issuer  upon  such  exercise,  conversion  or  exchange  plus the
          aggregate  consideration,  if any actually  received by the Issuer for
          the issuance,  sale or grant of all such rights,  options or warrants,
          whether or not exercised.

          Whenever the number of shares  purchasable  upon  conversion  shall be
adjusted as  required  by the  provisions  of this  Section 8, the Issuer  shall
forthwith file in the custody of its Secretary or an Assistant  Secretary at its
principal  office  and with its  stock  transfer  agent,  if any,  an  officers'
certificate showing the adjusted number of shares determined as herein provided,
setting forth in reasonable  detail the facts  requiring such adjustment and the
manner of computing such adjustment.  Each such officers'  certificate  shall be
signed by the chairman,  president or chief financial  officer of the Issuer and
by the secretary or any assistant  secretary of the Issuer.  Each such officers'
certificate  shall be made available at all  reasonable  times for inspection by
any holder of shares of the  Securities  and the Issuer shall,  forthwith  after
each such adjustment,  mail a copy, by first-class  mail, of such certificate to
the each of the Holders.

9.        Reclassification, Reorganization, Consolidation or Merger
          ---------------------------------------------------------

               In case of any reclassification,  capital reorganization or other
change of  outstanding  shares  of  Common  Stock of the  Issuer  (other  than a
subdivision  or  combination  of the  outstanding  Common Stock and other than a
change  in the par value of Common  Stock)  or in case of any  consolidation  or
merger of the Issuer with or into another  corporation (other than a merger with
a subsidiary in which merger the Issuer is the continuing  corporation  and that
does not result in any reclassification,  capital reorganization or other change
of outstanding  shares of Common Stock of the class issuable upon conversion) or
in case of any sale, lease, transfer or conveyance to another corporation of the
property  and  assets  of the  Issuer  as an  entirety  or  substantially  as an
entirety, the Issuer shall, as a condition precedent to such transaction,  cause
effective  provisions  to be  made so that  the  Holder  shall  have  the  right
thereafter,  by converting such Holder's shares of the securities, to receive in
lieu of the  receipt of shares of Common  Stock the kind and amount of shares of
stock and other  securities and property  (including  cash) receivable upon such
reclassification,    capitalization,    reorganization    and   other    change,
consolidation, merger, sale or conveyance by a holder of the number of shares of
Common Stock that would have been received upon conversion  immediately prior to
such reclassification,  capitalization,  reorganization,  change, consolidation,
merger,  sale or  conveyance.  Any such  provision  shall include  provision for
adjustments in respect of such shares of stock and other securities and property
that shall be as nearly  equivalent  as may be  practicable  to the  adjustments
provided for in this Security.  The foregoing provisions of this paragraph shall


                                       11

<PAGE>


                                                             Page 51 of 67 Pages

similarly apply to successive  reclassifications,  capital  reorganizations  and
changes of shares of Common  Stock and to  successive  consolidations,  mergers,
sales  or   conveyances.   In  the  event  that  in  connection  with  any  such
capitalization reorganization or reclassification,  consolidation,  merger, sale
or  conveyance,  additional  shares of Common Stock shall be issued in exchange,
conversion, substitution or payment, in whole or in part, for, or of, a security
of the Issuer  other than  Common  Stock,  any such issue shall be treated as an
issue of Common Stock covered by the provisions of Paragraph (iv) of Section 8.

10.       Miscellaneous

               This Security  shall be deemed to be a contract under the laws of
the State of New York,  and for all purposes  shall be  construed in  accordance
with the laws of said State,  without regard to any conflict of law  provisions.
The  parties  hereto,  including  all  guarantors  or  endorsers,  hereby  waive
presentment,  demand,  notice,  protest  and all other  demands  and  notices in
connection  with the delivery,  acceptance,  performance and enforcement of this
Security,  except as specifically  provided herein,  and assent to extensions of
the time of payment,  or forbearance or other  indulgence  without  notice.  The
Holder of this Security by acceptance of this Security agrees to be bound by the
provisions of this Security which are expressly binding on such Holder.

               In  determining  whether the holders of the  requisite  aggregate
principal  amount of  Securities  have  concurred in any  direction,  consent or
waiver  under  this  Security,  Securities  which are owned by the Issuer or any
other  obligor  on  the  Securities  or by any  person  directly  or  indirectly
controlling or controlled by or under direct or indirect common control with the
Issuer or any other obligor on the Securities  shall be  disregarded  and deemed
not to be outstanding for the purpose of any such  determination;  provided that
                                                                   --------
any Securities owned by Quantum Industrial Partners LDC or any Affiliate thereof
shall be deemed outstanding for purposes of making such a determination.

               The Issuer may not  assign any of its rights or  delegate  any of
its  obligations  under this  Security (or any part  thereof)  without the prior
written consent of the Holder.

               The Issuer  represents,  warrants and covenants to Holder that it
shall use its last efforts to repay this Security in  accordance  with the terms
hereof.

               The Section  headings herein are for  convenience  only and shall
not affect the construction hereof.

                                       12

<PAGE>


                                                             Page 52 of 67 Pages

               IN WITNESS  WHEREOF,  the Issuer has caused this instrument to be
duly executed under its corporate seal.


                                        T/F PURIFINER, INC.

[Seal]


                                        By   __________________________________
                                             Name:
                                             Title:

Dated:    ___________ __, 1998

Attest:


_______________________________

                               
                                       13

<PAGE>


                                                             Page 53 of 67 Pages

                           [FORM OF CONVERSION NOTICE]

                12% Senior Subordinated Convertible Note due 2003

To:      T/F Purifiner, Inc.

               The undersigned  owner of this Security  hereby:  (i) irrevocably
exercises  the option to convert  this  Security,  or the portion  hereof  below
designated,  for  shares of Common  Stock,  par  value  $.01 per share  ("Common
                                                                          ------
Stock"),  of T/F Purifiner,  Inc. in accordance  with the terms of this Security
- -----
and  (ii)  directs  that  such  shares  of  Common  Stock  deliverable  upon the
conversion,  together  with any check in payment for  fractional  shares and any
Security(ies)  representing any unconverted  principal amount hereof,  be issued
and delivered to the  registered  holder hereof unless a different name has been
indicated  below.  If shares  are to be  delivered  registered  in the name of a
person other than the  undersigned,  the undersigned will pay all transfer taxes
payable with respect thereto.

Dated:    ________________

                              Name:     _______________________________________

                              _________________________________________________
                              Signature

                              Principal Amount to be Converted: (if less than
                              all)

                              $________________________________________________

               Fill in for  registration  of shares if to be  delivered,  and of
Securities if to be issued,  otherwise than to and in the name of the registered
holder.


                              _________________________________________________
                              Social Security or Other

                              Taxpayer Identification Number

                              _________________________________________________
                              (Name)

                              _________________________________________________
                              (Street Address)

                              _________________________________________________
                              (City, State and Zip Code)

                                       14




                                                             Page 54 of 67 Pages

                                    EXHIBIT L

                             NOTE PURCHASE AGREEMENT

          AGREEMENT  dated as of  January  26,  1998  among  Quantum  Industrial
Partners LDC, a Cayman Islands exempted limited liability  duration company (the
"Buyer") and T/F Purifiner, Inc., a Delaware corporation (the "Company").


                               W I T N E S S E T H

          WHEREAS,  Buyer desires to purchase the Note (as hereinafter  defined)
on the terms and subject to the conditions set forth herein; and

          WHEREAS,  the  Company  desires  to sell the Note to the  Buyer on the
terms and subject to the conditions herein set forth.

          NOW, THEREFORE, the parties hereto agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

          1.1  Definitions.  The  following  terms,  as used  herein,  have  the
following meanings:

          "Affiliate"  means,  with  respect  to any  Person,  any other  Person
directly or indirectly controlling,  controlled by, or under common control with
such Person.

          "Common Stock" means the Common Stock,  par value $.001 per share,  of
the Company.

          "Encumbrances"  means all  voting  trusts,  arrangements,  stockholder
agreements,  proxies,  liens,  encumbrances,  transfer restrictions,  preemptive
rights, security, interests or community property rights.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Material  Adverse  Effect"  means a  material  adverse  effect on the
assets, properties,  business, prospects,  operations or condition, financial or
otherwise, of the Company.

          "Note" shall have the meaning set forth in Section 2.1 hereof.

          "Person" means an individual,  corporation, limited liability company,
partnership,  association,  trust or other entity or  organization,  including a
government or political subdivision or an agency or instrumentality thereof.

          "Registration  Agreement"  means  the  Registration  Rights  Agreement
between the Company and the Buyer dated as of June 19,  1997,  as  amendment  by



<PAGE>


                                                             Page 55 of 67 Pages

that certain  amendment  dated as of the date hereof (the  "Amendment"),  in the
form attached hereto as Exhibit A.

          "SEC" means the Securities and Exchange Commission.

          "SEC Documents" means all documents required to have been filed by the
Company  with the SEC under  Sections  13,  14(a) and 15(d) of the  Exchange Act
since its  registration  of its Common Stock under Section 12(g) of the Exchange
Act.

          "Securities Act" means the Securities Act of 1933, as amended.


                                   ARTICLE II

                                PURCHASE AND SALE

          2.1  Purchase and Sale of the Note.  The Company hereby agrees to sell
to the Buyer and,  subject  to the terms and  conditions  herein set forth,  the
Buyer agrees to purchase from the Company, the Company's 12% Senior Subordinated
Convertible  Note in the  aggregate  principal  amount of $500,000,  in the form
attached hereto as Exhibit B (the "Note").
                   --------- 

          2.2  Closing.  The closing (the "Closing") of the purchase and sale of
the Note shall take place at the offices of Akin, Gump,  Strauss,  Hauer & Feld,
L.LP.,  590 Madison  Avenue,  New York,  New York 10022 on the date hereof.  All
transactions at the Closing shall be deemed to take place simultaneously. At the
Closing:

               (a) The Buyer shall  deliver to the  Company  $500,000 in cash or
other immediately available funds to an account designated by the Company.

               (b) The  Company  shall  deliver  to the  Buyer,  the  Note  duly
registered in the name of the Buyer.

               (c) The Company shall  deliver to an account  designated by Akin,
Gump,  Strauss,  Hauer & Feld,  L.L.P.,  the amounts owed it pursuant to Section
6.2.

Additionally,  in connection with the closing of the  transactions  contemplated
hereby, the Company and the Buyer shall enter into the Amendment.

                                  ARTICLE III

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

          The Company hereby represents and watrrants to the Buyer that:

          3.1  Corporate Existence and Power;  Capitalization.  The Company is a
corporation  duly  incorporated  and validly existing and in good standing under
the laws of the State of  Delaware,  and has all  corporate  powers  required to
carry on its business as now being  conducted.  The Company has no subsidiaries.
The  Company  is  authorized  or duly  qualified  to do  business  as a  foreign
corporation and is in good standing in each jurisdiction  where the character of
the  property  owned or leased by it or the nature of its  activities  make such


                                        2

<PAGE>


                                                             Page 56 of 67 Pages

qualification necessary. The capitalization of the Company as of the date hereof
is set forth on Schedule 3.1 hereto. The SEC Documents  describe  accurately all
outstanding  stock  options,  warrants  and other  rights to purchase any equity
securities  of the Company.  Except as set forth on Schedule  3.1,  there are no
outstanding options,  warrants,  rights to subscribe to, or securities or rights
convertible or exercisable  into or exchangeable for any shares of capital stock
of the Company or  arrangements  by which the Company is or may become  bound to
issue additional shares of its capital stock other than pursuant to the Note.

          3.2  Corporate Authorization.  The execution, delivery and performance
by  the  Company  of  this  Agreement,  the  Note  and  the  Amendment  and  the
consummation by the Company of the transactions contemplated hereby and thereby,
are within the Company's  corporate  power and have been duly  authorized by all
necessary corporate action on the part of the Company. This Agreement,  the Note
and the  Amendment  have each been duly and validly  executed by the Company and
constitute  the valid and binding  agreements of the Company,  each  enforceable
against the Company in accordance with its terms.

          3.3  Governmental and Court Authorization. The execution, delivery and
performance by the Company of this Agreement, the Note and the Amendment require
no  consent,   approval  or  authorization   of,  or  filing,   registration  or
qualification  with, any governmental  body,  agency,  official,  court or other
authority that has not been obtained or made.

          3.4  Non-Contravention. The execution, delivery and performance by the
Company of this  Agreement,  the Note and the  Amendment do not and will not (A)
contravene  or conflict  with the  Company's  certificate  of  incorporation  or
by-laws, or (B) (i) contravene or conflict with or constitute a violation of any
provision of any federal or state law, regulation,  judgment,  injunction, order
or decree  binding upon or applicable to the Company,  (ii) require any consent,
approval or other  action by any Person or  constitute  a default  under or give
rise to any right of  termination,  cancellation or acceleration of any right or
obligation  of the  Company or to a loss of any  benefit to which the Company is
entitled under any provision of any  agreement,  contract,  indenture,  lease or
other instrument binding upon the Company or any license,  franchise,  permit or
other similar  authorization held by the Company or (iii) result in the creation
or imposition of any Encumbrances on the Note.

          3.5  SEC  Documents;   Disclosure  Documents.  Each  report  or  proxy
statement delivered to the Buyer is a true and complete copy of such document as
filed by the Company  with the SEC.  The Company has  delivered to the Buyer all
SEC Documents filed with the SEC since January 1, 1994. The Company has filed in
a timely manner all documents that the Company was required to file with the SEC
under Sections 13, 14(a) and 15(d) of the Exchange Act since its registration of
its Common Stock under Section 12(g) of the Exchange Act. As of their respective
filing dates,  all SEC  Documents  filed by the Company with the SEC complied in
all  material  respects  with  the  Exchange  Act  or  the  Securities  Act,  as
applicable. None of the SEC Documents as of their respective dates contained any
untrue statement of a material fact or omitted to state a material fact required
to be stated therein or necessary to make the statements made therein,  in light
of the circumstances  under which they were made, not misleading.  The financial
statements  of  the  Company  included  in the  SEC  Documents  (the  "Financial
Statements")  complied  as to  form in all  material  respects  with  applicable


                                       3

<PAGE>


                                                             Page 57 of 67 Pages

accounting  requirements and with the published rules and regulations of the SEC
with respect thereto.  The Financial Statements have been prepared in accordance
with generally accepted accounting  principles  consistently  applied and fairly
present  the  financial  position  of the  Company at the dates  thereof and the
results of operations and cash flows for the periods then ended (subject, in the
case of unaudited statements, to normal, recurring adjustments).

          3.6  Due  Authorization  and  Validity of the Note.  The Note has been
duly  authorized and when delivered  against  payment  therefor as  contemplated
hereby will be validly  issued,  fully paid and  non-assessable  and will not be
subject to any  preemptive  or similar  rights.  The Common Stock  issuable upon
conversion  of the Note has been  reserved  for issuance  and,  when issued upon
conversion of the Note,  will be validly issued,  fully paid and  non-assessable
and will not be subject to any preemptive or similar rights.

          3.7  Absence of Certain  Changes.  Except for  liquidity  issues which
have been fully  disclosed  by the  Company  to QIP,  in  connection  with QIP's
representation on the Board of Directors or otherwise, since September 30, 1997,
there has been no Material Adverse Effect.

          3.8  Litigation.  Except  as set  forth  in the  SEC  Documents  or as
set-forth in Schedule 3.8 hereto,  there is no action,  suit,  investigation  or
proceeding  pending  against,  or to the  knowledge  of the  Company  threatened
against or affecting,  the Company or any of their respective  properties before
any court or arbitrator or any governmental body, agency,  official or authority
which (i) could reasonably be expected to have a Material Adverse Effect or (ii)
in any manner  would  enjoin,  alter,  call into  question,  affect or delay the
transactions contemplated by this Agreement.

          3.9  FIRPTA. The Company is not a "United States real property holding
corporation"  within the meaning of Section  896(c)(2) of the  Internal  Revenue
Code of 1986, as amended.

          3.10 No  Undisclosed  Liabilities.  The Company has no  liabilities or
obligations  not  disclosed  in the SEC  Documents  and  those  incurred  in the
ordinary course of the Company's business since September 30, 1997.

          3.11 No Brokers. The Company has taken no action which would give rise
to any claim by any Person for brokerage  commissions,  finders' fees or similar
payments  by  the  Buyer  relating  to  this   Agreement  or  the   transactions
contemplated thereby.

          3.12 Disclosure. No representation,  warranty or statement made by the
Company  in  this  Agreement,  the  Registration  Agreement  or  any  agreement,
certificate,  statement or document  furnished by or on behalf of the Company in
connection  herewith or therewith  contains  any untrue  statement of a material
fact or omits to state a material fact necessary in order to make the statements
contained herein or therein, in light of the circumstances under which they were
made, misleading.

          3.13 Transactions  with  Affiliates.  Except  as set  forth in the SEC
Documents or as set forth in Schedule 3.13, there are no business  relationships


                                        4

<PAGE>


                                                             Page 58 of 67 Pages

or related party  transactions that would be required to be disclosed therein by
Item 404 of Regulation S-K of the SEC that are not so disclosed.

          3.14 Intellectual  Property.  Except as disclosed in the SEC Documents
or Schedule 3.14 hereto:

          (a)  the Company owns, possesses,  controls or is licensed under, such
patents  (or   applications   therefor),   trademarks  and  service  marks  (and
registrations thereof),  copyrights (and registrations thereof), utility models,
inventions,  know-how,  trade secrets,  and other intellectual  property (all of
aforesaid  referred  to as  "Necessary  Intellectual  Property  Rights")  as are
necessary  for the  operation of the  business now  conducted or operated by the
Company, including but not limited to the property listed on Schedule 3.14;

          (b)  to the knowledge of Company all Necessary  Intellectual  Property
Rights are valid and  subsisting  and the  Company is unaware of any fact which,
individually  or in the aggregate,  would  materially  detrimentally  affect the
validity,  ownership or  enforceability of the Necessary  Intellectual  Property
Rights;

          (c)  the Company is not aware of, or has not  received  notice of, any
asserted right with respect to any of the Necessary Intellectual Property Rights
which,  if determined  unfavorably  with respect to the interests of the Company
would have a Material Adverse Effect;

          (d)  the Company is unaware of any  patent,  trademark,  copyright  or
other intellectual  property license to which the Company is a party as licensor
or licensee, which has been revoked,  terminated or canceled, or which is likely
or subject to being  revoked,  terminated  or  canceled,  where the  revocation,
cancellation or termination would have a Material Adverse Effect; and

          (e)  the  Company has not been  notified or advised,  has not been the
recipient  of a claim,  or is  otherwise  not aware,  that any  activity  of the
Company  infringes  or  violates  the  patent,  trademark,  copyright  or  other
intellectual property right of any third party.



                                        5

<PAGE>


                                                             Page 59 of 67 Pages

                                   ARTICLE IV

                   REPRESENTATIONS AND WARRANTIES OF THE BUYER

          The Buyer hereby  represents  and  warrants,  to the Company as of the
date hereof that:

          4.1  Organization;  Existence.  The Buyer is duly  organized,  validly
existing  and in  good  standing  under  the  laws  of the  jurisdiction  of its
incorporation, and the Buyer has all necessary corporate powers and all material
governmental licenses, authorizations,  consents and approvals required to carry
on its business as now being conducted.

          4.2  Corporate Authorization.  The execution, delivery and performance
by the Buyer of this  Agreement and the Amendment  and the  consummation  by the
Buyer of the transactions contemplated hereby and thereby are within the Buyer's
corporate  powers and have been duly  authorized by all  necessary  corporate or
other action on the part of the Buyer.

          4.3  Governmental and Court Authorization. The execution, delivery and
performance by the Buyer of this Agreement and the Amendment require no consent,
approval or authorization of, or filing, registration or qualification with, any
governmental  body,  agency,  official,  court  or  authority  that has not been
obtained or made.

          4.4  Non-Contravention. The execution, delivery and performance by the
Buyer of this  Agreement and the Amendment do not and will not (A) contravene or
conflict with the certificate of incorporation or bylaws of it or (B) contravene
or  conflict  with or  constitute  a  violation  of any  provision  of any  law,
regulation,  judgment, injunction, order or decree binding upon or applicable to
it.

          4.5  Purchase for Investment; Legends.

               (a)  The Note is being acquired for its own account, and not with
a  view  to  public   distribution   in   violation  of  the   Securities   Act.
Notwithstanding  the  foregoing,  the Buyer shall have the right at all times to
sell or  otherwise  dispose of all or any part of the Note or the  Common  Stock
issuable upon  conversion of the Note pursuant to a  registration,  or exemption
therefrom,  under the Securities Act. It is an "accredited  investor" as defined
in Rule 501 under the Securities Act.

               (b)  Upon original issuance  thereof,  and until such time as the
same is no longer  required under the applicable  requirements of the Securities
Act, the Note (and all Common Stock issued in exchange  therefor or substitution
thereof) shall bear the following legend:

               THIS  SECURITY HAS NOT BEEN  REGISTERED  UNDER THE
               SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE
               SOLD,  ASSIGNED,   OR  OTHERWISE   TRANSFERRED  OR
               DISPOSED OF EXCEPT IN COMPLIANCE WITH SUCH ACT AND
               THE APPLICABLE RULES AND REGULATIONS THEREUNDER.

                                        6

<PAGE>


                                                             Page 60 of 67 Pages



                                    ARTICLE V

                                    COVENANTS

          5.1  Registration.  If and to the extent required by the  Registration
Agreement,  the Company  agrees that it will register the Common Stock  issuable
upon conversion of the Note for sale under federal and state  securities laws in
accordance with the Registration Agreement.

          5.2  Transactions with Affiliates. So long as the Note is outstanding,
without the Buyer's written consent,  the Company shall not conduct any business
or enter  into any  transaction  or  series  of  similar  transactions  with any
Affiliate of the Company or any legal or  beneficial  owner of 5% or more of any
class of capital stock of the Company with an Affiliate of such owner unless the
terms of such business,  transaction or series of transactions  are set forth in
writing and as favorable to the Company as terms that would be obtainable at the
time for a comparable  transaction  or series of similar  transactions  in arm's
length  dealings with an unrelated  third  person.  For purposes of this Section
5.2,  the Buyer  shall be not  deemed to be an  Affiliate.  Notwithstanding  the
foregoing,  so long as the Note is  outstanding,  the Company shall not make, or
cause any other party to make, any loans to any shareholders of the Company. The
Company  further  agrees  that it will not enter into any  transaction  with any
Affiliate or any legal or beneficial owner of 5% or more of any class of capital
stock of the Company or an Affiliate or family  member of such person unless the
terms of such  transaction  have been  presented to and approved by the Board of
Directors of the Company.

          5.3  Restricted  Payments.  So long as the  Note is  outstanding,  the
Company will not, without the prior written consent of the Buyer, (i) declare or
pay any  dividend or make any other  payment or  distribution  on account of any
capital  stock of the Company,  (ii)  purchase  redeem or  otherwise  acquire or
retire  for  value  any  capital  stock  of the  Company  or  (iii)  except  for
indebtedness as set forth on Schedule 5.3 that the Company is already  committed
to retiring,  purchase, redeem, defease or otherwise acquire or retire for value
any  indebtedness  that  is  subordinate  or  pari  passu  to the  Note  (each a
"Restricted Payment").

          5.4  Proceeds of Financing.  The proceeds of the sale of the Note will
be used by the  Company for (i)  general  operating  expenses of the Company and
(ii) to repay a former  shareholder loan of $103,501.16 to the estate of Willard
Taylor.

                                   ARTICLE VI

                               CLOSING DELIVERIES

          Simultaneously with the execution and delivery of this Agreement,  the
following deliveries shall be made:

          6.1  Amendment to  Registration  Rights  Agreement.  The Buyer and the
Company shall enter into the Amendment.

                                        7

<PAGE>


                                                             Page 61 of 67 Pages


          6.2  Reimbursement.  The Company shall have  reimbursed  the Buyer for
its out-of-pocket  costs and expenses incurred in connection with the closing of
the  transactions  contemplated  by this Agreement and the Amendment,  provided,
however,  that in no such event shall  reimbursement for out-of-pocket costs and
expenses exceed $1,000.

          6.3  Officer's  Certificate.  The Company  shall deliver a certificate
from its Secretary attesting to the authenticity of the following documents: (i)
the  certificate  of  incorporation  of the  Company;  (ii) the  by-laws  of the
Company;  and (iii) the  resolutions of the Company  authorizing the sale of the
Note and the  reservation of shares of Common Stock issuable upon  conversion of
the Note.

          6.4  Opinion. The Company shall cause Atlas, Pearlman, Trop & Borkson,
P.A., to deliver to the Buyer an opinion in the form attached  hereto as Exhibit
                                                                         -------
C.
- -


                                   ARTICLE VII

                            SURVIVAL; INDEMNIFICATION

          7.1  Survival.   The  covenants,   agreements,   representations   and
warranties  of  the  parties  hereto  contained  in  this  Agreement  or in  any
certificate or other writing delivered pursuant hereto or in connection herewith
shall survive the Closing.

          7.2  Indemnification.  The Company  shall  indemnify and hold harmless
the Buyer (and its  directors,  officers,  employees,  Affiliates  and permitted
assigns)   from  and  against  all  losses,   liabilities,   charges,   damages,
deficiencies,  costs and expenses (including interest,  penalties and attorney's
fees and  disbursements)  (collectively,  "Loss"),  sustained or incurred by the
Buyer based upon or arising out of (i) any inaccuracy or defect or breach of any
representation  or warranty by the Company in this Agreement or (ii) any failure
by the Company to perform or observe any term or covenant of this  Agreement  or
the  Registration  Agreement  required to be performed by it, and will reimburse
the  Buyer  for  any  reasonable  legal  or  other  expenses  incurred  by it in
connection with the investigating or defending of any Loss.


                                  ARTICLE VIII

                                  MISCELLANEOUS

          8.1  Notices.  All notices,  requests and other  communications to any
part hereunder shall be in writing  (including  telecopy or similar writing) and
shall be effective upon receipt and shall be given, if to the Buyer, to:


                                        8

<PAGE>



                                                             Page 62 of 67 Pages

                                    Quantum Industrial Partners LDC
                                    c/o Curacao Corporation Company, N.V.
                                    Kaya Flamboyan
                                    Willemstad, Curacao
                                    Netherlands, Antilles
                                    Fax: 599-9-322-001

                                    with a copy to:

                                    Soros Fund Management
                                    888 Seventh Avenue
                                    New York, New York  10106
                                    Attention: Michael Neus
                                    Fax: (212) 664-0544

                                    and

                                    Akin, Gump, Strauss, Hauer & Feld, L.L.P.
                                    590 Madison Avenue
                                    New York, New York  10022
                                    Attention: Edward D. Sopher
                                    Fax: (212) 872-1002

                                    If the Company to:

                                    T/F Purifiner, Inc.
                                    3036 High Ridge Road
                                    Suite 100
                                    Boyton Beach, Florida  33426
                                    Attention:  Keith T.J. Hart
                                    Fax:  (561) 547-4025


                                    with a copy to:

                                    Atlas, Pearlman, Trop & Borkson, P.A.
                                    New River Center - Suite 1900
                                    200 East Los Olas Boulevard
                                    Fort Lauderdale, Florida  33301
                                    Attention:  Jim Schneider
                                    Fax:  (954) 523-1952


or to such  other  address  or Person as any of the  parties  may  designate  by
written notice hereunder.

         8.2      Amendments: No Waivers.

          (a)  Any provision of this  Agreement may be amended or waived if, and
only if, such amendment or waiver is in writing and signed, in the case of an

                                        9

<PAGE>


                                                             Page 63 of 67 Pages

amendment,  by the Buyer  and the  Company,  or in the case of a waiver,  by the
party against whom the waiver is to be effective.

               (b)  No failure or delay by either party in exercising any right,
power or privilege  hereunder  shall  operate as a waiver  thereof nor shall any
single or  partial  exercise  thereof  preclude  any other or  further  exercise
thereof or the exercise of any other right,  power or privilege.  The rights and
remedies  herein provided shall be cumulative and not exclusive of any rights or
remedies provided by law;

          8.3  Expenses. All reasonable costs and expenses incurred by the Buyer
in  connection  with  this  Agreement  and the  Amendment  shall  be paid by the
Company.

          8.4  Successors and Assigns. The provisions of this Agreement shall be
binding upon and inure to the benefit of the parties hereto and their respective
successors and assigns; provided that no party may assign, delegate or otherwise
transfer  any of its rights or  obligations  under this  Agreement  without  the
consent of the other parties hereto.

          8.5  Governing  Law. THIS  AGREEMENT  SHALL BE CONSTRUED IN ACCORDANCE
WITH AND GOVERNED BY THE LAW OF THE STATE OF NEW YORK.

          8.6  Counterparts;  Effectiveness. This Agreement may be signed in any
number of counterparts, each of which shall be an original, with the same effect
as if the  signatures  thereto  and hereto were upon the same  instrument.  This
Agreement  shall become  effective  when each party hereto shall have received a
counterpart hereof signed by the other parties hereto.

          8.7  Entire  Agreement.  This  Agreement,  the Note and the  Amendment
constitute the entire agreement  between the parties with respect to the subject
matter   hereof  and  supersede  all  prior   agreements,   understandings   and
negotiations,  both  written and oral,  between the parties  with respect to the
subject matter of this Agreement.

          8.8  Jurisdiction.  Any suit, action or proceeding  seeking to enforce
any provision of, or based on any matter  arising out of or in connection  with,
this Agreement or the  transactions  contemplated  hereby may be brought against
either of the  parties  in the courts of the State of New York in New York City,
or, if it has or can acquire  jurisdiction,  in the United States District Court
for the Southern  District of New York, and each of the parties hereby  consents
to the jurisdiction of such courts (and of the appropriate  appellate courts) in
any such suit,  action or  proceeding  and waives  any  objection  to venue laid
therein.  Process in any such suit,  action or  proceeding  may be served on any
party anywhere in the world, whether within or without the State of New York.

          8.9  Captions.  The captions  herein are included for  convenience  of
reference  only and  shall be  ignored  in the  construction  or  interpretation
hereof.



                                       10

<PAGE>


                                                             Page 64 of 67 Pages

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

                                    QUANTUM INDUSTRIAL PARTNERS LDC


                                    By: _______________________________________
                                    Name:
                                    Title:


                                    T/F PURIFINER, INC.


                                    By: _______________________________________
                                    Name:
                                    Title:




                                       11






                                                             Page 65 of 67 Pages

                                    EXHIBIT M

                                 AMENDMENT NO. 1

                                       TO

                          REGISTRATION RIGHTS AGREEMENT


          This  Amendment No. 1, dated as of January 26, 1998, is by and between
T/F  PURIFINER,  INC.,  a Delaware  corporation  (the  "Company"),  and  QUANTUM
INDUSTRIAL  PARTNERS  LDC,  a  Cayman  Islands  limited  duration  company  (the
"Investor") .

          WHEREAS,  the Company and the  Investor  entered  into a  Registration
Rights Agreement, dated as of June 19, 1997 (the "Registration Agreement");

          WHEREAS,  in  order  to  induce  the  Investor  to  enter  into  those
transactions  contemplated  by that Note Purchase  Agreement dated as of January
26,  1998 by and  between  the  Company  and the  Investor  (the "Note  Purchase
Agreement") and that Note Exchange  Agreement by and between the Company and the
Investor  dated as of January  26,  1998 (the "Note  Exchange  Agreement"),  the
Company has agreed to provide  registration rights with respect to the shares of
common  stock of the Company,  par value $.001 per share (the  "Common  Stock"),
issuable upon exercise of the securities  issued to the Investor pursuant to the
Note Purchase Agreement and the Note Exchange Agreement;

          WHEREAS, the Company and the Investor desire to amend the Registration
Agreement in connection with the foregoing;

          NOW,  THEREFORE,  the parties,  intending to be legally bound,  hereby
agree as follows:

          1.  Section 1 of the  Registration  Agreement  is hereby  amended  and
restated in its entirety as follows:

         '1.      Securities Subject to this Agreement           
                  ------------------------------------
  
               The term  "Registrable  Securities" shall mean (i)
               shares of the Common  Stock issued and sold to the
               Investor  pursuant  to  the  Securities   Purchase
               Agreement,  (ii) shares of Common  Stock  issuable
               upon  exercise  of  the  warrant  (the  "Warrant")
               issued to the Investor  pursuant to the Securities
               Purchase  Agreement,  that are  from  time to time
               held  by the  Investor  or any  subsequent  holder
               thereof (the "Warrant  Holders"),  (iii) shares of
               Common Stock  issuable upon the  conversion of the
               12% Senior  Subordinated  Convertible  Note in the
               aggregate  principal  amount of $500,000 issued to
               the  Investor   pursuant  to  the  Note   Purchase


                                

<PAGE>


                                                             Page 66 of 67 Pages

               dated as of January  26,  1998 by and  between the
               Company  and the  Investor,  that are from time to
               time held by the Investor or any subsequent holder
               thereof  (the  "Note  Holders"),  (iv)  shares  of
               Common Stock  issuable upon the  conversion of the
               12% Senior  Subordinated  Convertible  Note in the
               aggregate principal amount of $2,000,000 issued to
               the  Investor   pursuant  to  the  Note   Exchange
               Agreement  dated  as of  January  26,  1998 by and
               between  the Company  and the  Investor,  that are
               from  time to time  held  by the  Investor  or any
               subsequent  holder  thereof  (the  "Exchange  Note
               Holders";  and together  with the Warrant  Holders
               and the  Note  Holders,  the  "Holders"),  and (v)
               shares of Common  Stock  issued or issuable to the
               Holders by way of a dividend, stock split or other
               distribution  or in connection  with a combination
               of     shares,      recapitalization,      merger,
               consolidation,    reorganization   or   otherwise;
               provided,  that such securities  shall cease to be
               --------
               Registrable  Securities  when  (a) a  registration
               statement   with  respect  to  the  sale  of  such
               securities  shall have become  effective under the
               Securities Act and such securities shall have been
               disposed of in accordance  with such  registration
               statement,  (b) they shall cease to be outstanding
               or (c) they are distributed to the public pursuant
               to  Rule  144 (or any  similar  provision  then in
               effect) under the Securities Act.'

          2.   Except as expressly amended hereby,  the Registration  Agreement,
and all rights and  obligations  of the Investor  and the  Company,  thereunder,
shall  remain in full force and  effect.  This  amendment  shall not,  except as
expressly  provided  herein,  be  deemed  to  be a  consent  to  any  waiver  or
modification of any other terms or provisions of the Registration Agreement.

          3.   This Amendment may be signed in any number of counterparts,  each
of which shall be an original, with the same effect as if the signatures thereto
and hereto were upon the same instrument.  This Amendment shall become effective
when each party hereto shall have  received a  counterpart  hereof signed by the
other parties hereto.

                                        2

<PAGE>


                                                             Page 67 of 67 Pages

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

                                            QUANTUM INDUSTRIAL PARTNERS LDC


                                            By:   _____________________________
                                                  Name:
                                                  Title:


                                            T/F PURIFINER, INC.


                                            By:   _____________________________
                                                  Name:
                                                  Title:


                                        3



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission