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                                                                       EXHIBIT 3
                        FORM OF SUPPLEMENTAL AGREEMENT





                               ____________, 1994





Mr. John H. Morrow
Executive Vice President
Puritan-Bennett Corporation
9401 Indian Creek Parkway
Overland Park, Kansas  66225

Dear Mr. Morrow:

         This supplemental letter agreement ("Supplemental Agreement") amends
and supplements the letter agreement dated June 9, 1994 (the "Agreement")
between you and Puritan-Bennett Corporation.  All definitions of terms in the
Agreement shall apply in this Supplemental Agreement.  As amended and
supplemented by this Supplemental Agreement, the Agreement shall remain in full
force and effect.

         1.      The benefits payable to you under Sections 3.1(a) and (b) of
the Agreement are hereby modified by replacing Sections 3.1(a) and (b) in their
entirety with the following:

         1.1     Rights upon Termination by Company other than for Cause, or by
                 Employee for Good Reason.  If the Company terminates your
                 employment other than for Cause prior to your Normal
                 Retirement Date, or if you terminate your employment for Good
                 Reason prior to your Normal Retirement Date, then the Company
                 shall have the following obligations to you:

                 (a)      During the applicable Continued Payment Period, the
                          Company shall make semi-monthly payments to you equal
                          to your semi-monthly base salary in effect
                          immediately prior to the Employment Termination Date
                          plus one twenty-fourth of the annual average of your
                          incentive bonus payments under the MIB Plan or any
                          successor thereto with respect to the three full (12
                          months) fiscal years immediately preceding the
                          Employment Termination Date (such annual average
                          being referred to herein as the "Average Annual
                          Incentive Payment"), such amounts to be computed
                          without regard to any reductions which may have
                          occurred in breach of this Agreement or following a
                          Change in Control.  Such payments shall be subject to
                          all required withholdings.  The Continued Payment
                          Period shall commence on the Employment Termination
                          Date, and shall be a number of weeks determined by
                          adding (a) the greater of (i) four or (ii) two times
                          the number of years Employee has been an employee of
                          the Company (rounding up to the next full year and
                          excluding any intervening periods during which
                          Employee was not an
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Mr. John H. Morrow
____________________, 1994
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                          employee of the Company), plus (b) two times the
                          number of $5,000 increments (rounded up to the next
                          whole $5,000 increment) contained in the Employee's
                          Annual Compensation (as defined below); provided,
                          that the Continued Payment Period shall not exceed
                          three years.  "Annual Compensation" shall mean the
                          sum of (x) your annual base salary in effect
                          immediately prior to the Employment Termination
                          Date, plus (y) the Average Annual Incentive Payment.

                 (b)      Any outstanding unvested options held by you to
                          purchase stock of the Company that have not otherwise
                          become exercisable under the terms of the Company's
                          stock option plans shall become fully vested and
                          exercisable.

         2.      If your employment is terminated under circumstances in which
                 you are entitled to receive payments under Section 3.1 of the
                 Agreement, and if you are not otherwise entitled to a bonus
                 payment with respect to the fiscal year in which your
                 employment is terminated, the Company will pay to you within
                 30 days after the Employment Termination Date, and subject to
                 required withholdings, a one-time bonus equal to the product
                 of (i) the fraction of a full year represented by the period
                 from the beginning of the fiscal year to the Employment
                 Termination Date, and (ii) the Average Annual Incentive
                 Payment.

         3.      If your employment is terminated under circumstances 
                 in which you are entitled to receive payments under 
                 Section 3.1 of the Agreement, then the Company will
                 provide a benefit under the  Consolidated Omnibus Budget
                 Reconciliation Act of 1986  ("COBRA") and Section 4980B of the
                 Internal Revenue Code of 1986, as amended, as follows: the
                 Company shall pay the cost of COBRA coverage with respect to
                 your coverage status (e.g., individual or family) in effect
                 immediately prior to the Employment Termination Date.  The
                 insurance continuation benefits paid for hereunder shall be
                 deemed to be part of your COBRA coverage. Such benefits shall
                 be in addition to any other benefits relating to health or
                 medical care benefits that are available under the Company's
                 policies to you following termination of employment.

         4.      The severance benefits provided under the Agreement and this
                 Supplemental Agreement will be reduced by any severance
                 benefits to which you are entitled under the Company's
                 Severance Benefits policy for terminated employees, or any
                 other agreement between you and the Company for severance
                 benefits.  Except as provided in the immediately preceding
                 sentence, all of your rights and benefits, including those
                 under the Agreement and this Letter Agreement, shall remain in
                 full force and effect.  It is expressly agreed that payments
                 or benefits to you under the Company's SERP or under any
                 agreement with you relating to the Company's SERP or any other
                 retirement or pension arrangement shall not be offset against
                 or reduce in any way any payments or benefits to which you are
                 entitled under the Agreement or under this Supplemental
                 Agreement.

         5.      Section 5 of the Agreement is hereby replaced with the
                 following:

                 Non-Competition.  During your employment, you agree that you
                 will not directly or indirectly compete with the Company, or
                 engage in, or act as an officer, director, employee, or agent
                 of any person or entity that is engaged in, any business in
                 which the Company is engaged, without the written approval of
                 the CEO.  The foregoing shall not prohibit you from investing
                 in any securities of a corporation whose securities, or any of
                 them, are listed on a national securities exchange or traded
                 in the over-the-counter market so long as you shall own less
                 than 3% of the outstanding voting stock of such corporation.
                 If you are entitled
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Mr. John H. Morrow
____________________, 1994
Page 3

                 to receive payments under Section 3.1(a), then, as to any
                 business in which the Company is engaged as of the Employment
                 Termination Date, you shall continue to be bound by the
                 provisions of this Section 5 during the applicable Continued
                 Payment Period.  If you violate the provisions of this Section
                 5, then, in addition to any other rights at law or in equity,
                 the Company shall be entitled to discontinue any payments
                 otherwise due to you hereunder.

         6.      (a)      Anything in the Agreement or this Supplemental
                 Agreement to the contrary notwithstanding, in the event it
                 shall be determined that any payment or distribution by the
                 Company to or for the benefit of Employee (whether paid or
                 payable or distributed or distributable pursuant to the terms
                 of this Agreement or otherwise) (a "Payment") would be
                 nondeductible by the Company for Federal income tax purposes
                 because of Section 280G of the Code, then the aggregate
                 present value of amounts payable or distributable as severance
                 benefits hereunder shall be reduced to the Reduced Amount.
                 The "Reduced Amount" shall be an amount expressed in present
                 value which maximizes the aggregate present value of such
                 severance benefits without causing any Payment to be
                 nondeductible by the Company because of Section 280G of the
                 Code.  Anything to the contrary notwithstanding, if the
                 Reduced Amount is zero and it is determined further that any
                 Payment which is not part of the severance benefits payable
                 hereunder would nevertheless be nondeductible by the Company
                 for Federal income tax purposes because of Section 280G of the
                 Code, then the aggregate present value of Payments which are
                 not severance benefits under this Agreement shall also be
                 reduced (but not below zero) to an amount expressed in present
                 value which maximizes the aggregate present value of Payments
                 without causing any payment to be nondeductible by the Company
                 because of Section 280G of the Code.  For purposes of this
                 paragraph 6, present value shall be determined in accordance
                 with Section 280G(d)(4) of the Code.

                 (b)      All determinations required to be made under this
                 paragraph 6 shall be made by the Company's independent
                 auditors which shall provide detailed supporting calculations
                 both to the Company and Employee within 15 business days of
                 the Date of Termination or such earlier time as is requested
                 by the Company and an opinion to Employee that he or she has
                 substantial authority not to report any excise tax on his
                 Federal income tax return with respect to any Payments.  Any
                 such determination by the Company's independent auditors shall
                 be binding upon the Company and Employee.  Employee shall
                 determine which and how much of the Payments, shall be
                 eliminated
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Mr. John H. Morrow
____________________, 1994
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                 or reduced consistent with the requirements of this
                 paragraph 6, provided that, if Employee does not make such
                 determination within ten business days of the receipt of the
                 calculations made by the Company's independent auditors, the
                 Company shall elect which and how much of the Payments shall
                 be eliminated or reduced consistent with the requirements of
                 this paragraph 6 and shall notify Employee promptly of such
                 election; and provided further that any Payments which do not
                 constitute gross income to Employee shall not be reduced or
                 eliminated unless all other Payments have first been
                 eliminated.  Within five business days thereafter, the Company
                 shall pay to or distribute to or for the benefit of Employee
                 such amounts as are then due to Employee under this Agreement.

                 (c)      As a result of the uncertainty in the application of
                 Section 280G of the Code at the time of the initial
                 determination by the Company's independent auditors hereunder,
                 it is possible that Payments will have been made by the
                 Company which should not have been made ("Overpayment") or
                 that Payments will not have been made by the Company which
                 could have been made ("Underpayment"), in each case,
                 consistent with the calculations required to be made
                 hereunder.  In the event that the Company's independent
                 auditors, based upon the assertion of a deficiency by the
                 Internal Revenue Service against Employee or the Company which
                 the Company's independent auditors believe has a high
                 probability of success, determine that an Overpayment has been
                 made, any such Overpayment paid or distributed by the Company
                 to or for the benefit of Employee shall be treated for all
                 purposes as a loan ab initio to Employee which Employee shall
                 repay to the Company together with interest at the applicable
                 federal rate provided for in Section 7872(f)(2) of the Code;
                 provided, however, that no such loan shall be deemed to have
                 been made and no amount shall be payable to the Company if and
                 to the extent such deemed loan and payment would not either
                 reduce the amount on which Employee is subject to tax under
                 Section 1 and Section 4999 of the Code or generate a refund of
                 such taxes.  In the event that the Company's independent
                 auditors, based upon controlling precedent or other
                 substantial authority, determine that an Underpayment has
                 occurred, any such Underpayment shall be promptly paid by the
                 Company to or for the benefit of Employee together with
                 interest at 120% of the applicable federal rate provided for
                 in Section 7872(f)(2) of the Code, compounded semiannually.

         7.      Notwithstanding anything in the Agreement or this Supplemental
Agreement to the contrary, if after giving effect to the provisions of Section
6 of this Supplemental Agreement any portion of any payments to you by the
Company under the Agreement, this Supplemental Agreement and any other present
or future plan or program of the Company or other present or future agreement
between you and the Company would not be deductible by the Company for Federal
income tax purposes by reason of application of Section 162(m) of the Code,
then payment of that portion to you shall be deferred until the earliest date
upon which payment thereof can be made to you without being non-deductible
pursuant to Section 162(m) of the Code.  In the event of such a deferral, the
Company shall pay interest to you on the amount deferred at 120% of the
applicable federal rate provided for in Section 7872(f)(2) of the Code, 
compounded semi-annually.
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Mr. John H. Morrow
____________________, 1994
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         8.      Miscellaneous.

         8.1.    No Assignment.  No benefit hereunder shall be subject to
anticipation, alienation, sale, transfer, assignment, pledge, encumbrances or
charge, and any attempt to do so shall be void.

         8.2     Notices.  All notices hereunder shall be in writing, and shall
be delivered in person, by facsimile or by certified mail-return receipt
requested.  Notices shall be delivered as follows:

                                  If to the Company:

                                  Chief Executive Officer
                                  Puritan-Bennett Corporation
                                  9401 Indian Creek Parkway
                                  Overland Park, Kansas 66225

                                  If to the Employee:

                                  Mr. John H. Morrow
                                  10231 Catalina
                                  Overland Park, Kansas 66207

Either party may change its address for notice by giving notice to the other
party of a new address in accordance with the foregoing provisions.

         8.3     Governing Law.  This Agreement shall be governed by the laws
of the State of Kansas.

         8.4     Disputes.  In the event of any dispute between the Company and
Employee arising out of this Agreement, the Company's then current Alternative
Dispute Resolution Procedure will be followed (a copy of the current procedure
is attached hereto) and the prevailing party shall be entitled to recover its
reasonable attorneys' fees and expenses incurred in connection with the
enforcement of its rights hereunder.

         8.5     Severability.  If any term, provision, covenant or restriction
of this Agreement is held by a court of competent jurisdiction or other
authority to be invalid, void or unenforceable, the remainder of the terms,
provisions, covenants and restrictions of this Agreement shall remain in full
force and effect and shall in no way be affected, impaired or invalidated.

         8.6     Descriptive Headings.  Descriptive headings of the several
paragraphs of this Agreement are inserted for convenience only and shall not
control or affect the meaning or construction of any of the provisions hereof.
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Mr. John H. Morrow
____________________, 1994
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         Please acknowledge your agreement to the foregoing Letter Agreement by
signing the enclosed counterpart of this letter and returning it to the
Company.

                                       Very truly yours,

                                       PURITAN-BENNETT CORPORATION



                                       By:_____________________________________
                                                       President


Agreed to and accepted:


______________________________________________
JOHN H. MORROW