MAY 14, 1997 WAIVER AND AGREEMENT


         Reference  is hereby made to that certain  Amended and Restated  Credit
Facilities Agreement dated as of October 13, 1995 by and among Allied Healthcare
Products, Inc., a Delaware corporation ("Allied"),  Life Support Products, Inc.,
a  California  corporation  ("LSP"),  B&F  Medical  Products,  Inc.,  a Delaware
corporation,  ("B&F"), Hospital Systems, Inc., a California corporation ("HSI"),
Bear  Medical  Systems,  Inc.,  a  California  corporation  ("BMS")  and  BiCore
Monitoring Systems, Inc., a California corporation ("BiCore") (Allied, LSP, B&F,
HSI, BMS and BiCore are hereinafter referred to individually and collectively as
"Borrower"),   The  Boatmen's   National  Bank  of  St.  Louis,   ("Boatmen's"),
individually and as Agent under the Loan Agreement, and the other lenders listed
on the  signature  pages  thereof  ("Lender")  (as the same has been  amended or
modified prior to the date hereof, the "Loan Agreement"). Capitalized terms used
and not otherwise  defined  herein shall have the meanings  given thereto in the
Loan Agreement.

         Borrower has notified  Lenders that Borrower is not in compliance  with
certain of the  covenants  contained  in Section 17 of the Loan  Agreement  with
respect to the fiscal period ending March 31, 1997 (the "Affected Period"). Such
non-compliance  constitutes  an  Event of  Default  under  the  Loan  Agreement.
Borrower has  requested  that Lenders  waive all Events of Default in connection
with the covenants contained in Section 17 with respect to the Affected Period.

         Upon the terms and conditions contained herein,  Lenders are willing to
waive such Events of Default for a limited  period of time, as set forth herein,
and in  consideration  of  the  foregoing,  and  for  other  good  and  valuable
consideration,  the Borrower, the Agent and the undersigned Lenders hereby agree
as follows:

1. WAIVER.  Borrower  hereby  represents that it is in  non-compliance  with the
covenants  contained in 17.5,  17.7,  17.8, and 17.10 of the Loan Agreement with
respect to the Affected  Period.  Subject to  satisfaction of the conditions set
forth herein,  Lenders hereby agree to waive all Events of Default in connection
with Borrower's non-compliance with the covenants contained in 17.5, 17.7, 17.8,
and 17.10 of the Loan  Agreement  with respect to the Affected  Period.  Lenders
further agree to waive the Event of Default occurring pursuant to Section 18.1.9
(vi) of the Loan  Agreement  as a result  of  Borrower's  corporate  resolutions
authorizing the filing of a petition in bankruptcy, such resolutions having been
enacted on or about May 14, 1997.  Borrower  hereby  represents  to Lenders that
such resolutions have been rescinded.

2.    WAIVER CHARGES.  In consideration for and as a condition precedent to
this Agreement, Borrower hereby agrees that it shall pay to Agent for the
ratable benefit of Lenders, "Waiver Charges" as follows:






      2.1  UPFRONT  CHARGE.  On May  14,  1997,  June  14,  1997  (if  the  Loan
Obligations  have not been repaid in full by such  date),  and July 14, 1997 (if
the Loan Obligations have not been repaid in full by such date),  Borrower shall
pay in cash on each of those days an  additional  Waiver Charge in the amount of
$50,000.00; and

      2.2. WAIVER CHARGES.  On May 14, 1997, Borrower shall accrue an additional
Waiver Charge to the Lenders in the amount of  $300,000.00,  which Waiver Charge
shall be payable in cash on the Revolver  Maturity Date.  Commencing  August 15,
1997 (if the Loan  Obligations  have not been repaid in full by such date),  and
from time to time  thereafter,  the Agent upon  written  notice to Borrower  may
require and cause Allied to issue an amount,  calculated as set forth below,  of
shares (in such name,  number of certificates  and shares per certificate as the
Agent  may  from  time to  time  specify,  including  future  substitutions  and
exchanges  as may be  requested  by the Agent to Allied) of the common  stock of
Allied in exchange for all or a portion of said Waiver Charge.  Allied agrees to
file a  registration  statement  with  respect to the transfer of such shares as
soon as  practicable  following such issuance and agrees to use its best efforts
to  cause  such  registration  statement  to be  declared  effective  as soon as
practicable, but in any event within 90 days thereof. The amount of shares to be
issued  from time to time  shall be as  follows:  the  percentage  of the Waiver
Charge  subject  to the  requested  exchange  specified  in the  Agent's  notice
multiplied by 90,000  shares.  Each Lender,  upon written  notice to Agent,  may
require the Agent to deliver the notice hereunder and to require the exchange of
said Lender's then share amount, or any portion thereof, in the Waiver Charge in
the  same  percentage  as  said  Lender's  then  percentage  share  of the  Loan
Obligations.

3.  SPECIFIC  WAIVER.  The waiver made hereby is specific in intent and is valid
only for the specific purpose for which given.  Except as specifically set forth
herein,  the execution,  delivery and  effectiveness of this Agreement shall not
operate as a waiver of any right, power or remedy of Agent and Lenders under any
of the Loan  Documents,  nor  constitute a waiver of any provision of any of the
Loan Documents.  Nothing contained herein shall obligate Agent and/or Lenders to
give  additional  waivers  of any  provisions  of any  of  the  Loan  Documents,
including but not limited to Section 17 of the Loan Agreement.

4.    AMENDMENTS TO LOAN AGREEMENT.

      4.1 Section 20.4.1 of the Loan Agreement is amended by deleting the phrase
"to one or more banks or financial  institutions."  Section 20.4.1.1 of the Loan
Agreement is amended by deleting its provisions and inserting the following:

                  "Agent shall have accepted the assignment, which acceptance
                  shall not be unreasonably withheld."

      4.2   Section 15.19 of the Loan Agreement is amended by adding the
following:

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                    "In  particular,   Borrower   promptly  upon  request  shall
                    provide,   and  shall   direct   Borrower's   advisors   and
                    consultants to provide,  to the Agent for the benefit of the
                    Lenders  such  information  that the Agent may request  from
                    Borrower with respect to Borrower's  efforts to (i) sell the
                    Borrower or any of its subsidiaries,  divisions, or lines of
                    business;  or (ii) refinance all or part of the Indebtedness
                    to the Lenders. Additionally,  Borrower within ten days from
                    the date  hereof  shall  retain  and  thereafter  cause  the
                    Corporate  Finance,  Recovery  and  Dispute  Group  of Price
                    Waterhouse LLP to provide to the Agent such information that
                    the Agent may require  pursuant to Section 15.19,  including
                    but not  limited  to,  information  and  analysis  regarding
                    Borrower's proposals for a possible longer term refinancing,
                    restructuring  or other  repayment of the Loan  Obligations,
                    subject to the requirements of the Loan Agreement, including
                    any and all necessary approvals,  consents and agreements of
                    the Agent and the Lenders.  Price  Waterhouse and said Group
                    are  hereby  authorized  and  directed  by the  Borrower  to
                    provide such information to the Agent for the benefit of the
                    Lenders. Any requests by the Agent hereunder for information
                    from Price  Waterhouse  or said Group may not  thereafter be
                    withdrawn, absent the approval of the Supermajority Lenders.
                    All fees and expenses  payable to Price  Waterhouse and said
                    Group shall be the sole responsibility of the Borrower.  The
                    Agent and the Lenders  shall have no liability or obligation
                    with  respect to any of Price  Waterhouse's  or said Group's
                    fees and expenses.

      4.3 For the period  ending  August 15,  1997,  Section  16.2.1 of the Loan
Agreement is amended by deleting "90" and inserting "135."

5.  REPRESENTATIONS  AND WARRANTIES OF BORROWER.  Borrower hereby represents and
warrants  to  Lenders  that  (i) this  Agreement  has been  duly  authorized  by
Borrower's  Board of Directors,  (ii) no consents are  necessary  from any third
parties for Borrower's  execution,  delivery or  performance of this  Agreement,
(iii) this  Agreement  constitutes  the legal,  valid and binding  obligation of
Borrower enforceable against Borrower in accordance with its terms except as the
enforcement  thereof  may be limited  by  bankruptcy,  insolvency  or other laws
related  to  creditors   rights  generally  or  by  the  application  of  equity
principles,  (iv) to the best of Borrower's knowledge, after due inquiry, except
as disclosed on the disclosure  schedule  attached  hereto as Exhibit 13, all of
the  representations  and  warranties  contained  in  Section  13  of  the  Loan
Agreement, as amended by this Agreement, are true


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and correct in all material  respects  with the same force and effect as if made
on and as of the effective date of this  Agreement,  except that with respect to
the  representations  and warranties  made  regarding  financial data in Section
13.15, such  representations  and warranties are hereby made with respect to the
most recent Financial  Statements and other financial data (in the form required
by the Loan  Agreement)  delivered  by Borrower  to Lenders,  (v) to the best of
Borrower's knowledge, after due inquiry, there is no Default which is continuing
and no Event of Default has occurred under the Loan Agreement as amended by this
Agreement,  and  (vi)  the  Loan  Agreement  (as  modified  by  this  Agreement)
represents  the legal,  valid and binding  obligation  of Borrower,  enforceable
against  Borrower in  accordance  with its terms,  except to the extent that the
enforceability   thereof   against   Borrower  may  be  limited  by  bankruptcy,
insolvency,  fraudulent conveyance,  reorganization,  moratorium or similar laws
affecting  the  enforceability  of creditor's  rights  generally or by equitable
principles of general application  (whether considered in an action at law or in
equity).  6.  REAFFIRMATION.  Borrower hereby acknowledges and confirms that (i)
except as expressly  amended hereby the Loan Agreement remains in full force and
effect, (ii) Borrower has no defenses to its obligation under the Loan Agreement
and the other Loan Documents,  (iii) the Security Interests of Agent and Lenders
under the  Security  Documents  secure all the Loan  Obligations  under the Loan
Agreement  as amended by this  Agreement,  continue in full force and effect and
have the same priority as before this Agreement,  and (iv) Borrower has no claim
against  Agent  or any  Lender  arising  from or in  connection  with  the  Loan
Agreement  or the other  Loan  Documents.  To the extent  Borrower  may have any
claims against Agent or any Lender  arising from or in connection  with the Loan
Agreement,  the other Loan Documents or any act or failure to act on the part of
Agent or any Lender prior to the date of this Agreement,  Borrower hereby waives
and  releases  the  Agent  and the  Lenders,  including  any of their  officers,
directors,  agents,  advisors,  attorneys or  representatives,  from any and all
claims, debts, damages, demands, liabilities, obligations and suits, of whatever
kind or nature, and any damages, liabilities, losses, costs or expenses incurred
by Borrower and any of its affiliates in connection therewith.

7.    GOVERNING LAW.  This Agreement has been executed and delivered in St.
Louis, Missouri, and shall be governed by and construed under the laws of the
State of Missouri without giving effect to choice or conflicts of law
principles thereunder.

8.    SECTION TITLES.  The section titles in this Agreement are for
convenience of reference only and shall not be construed so as to modify any
provisions of this Agreement.

9. COUNTERPARTS;  FACSIMILE TRANSMISSIONS. This Agreement may be executed in one
or more counterparts and on separate counterparts, each of which shall be deemed
an  original,  but all of  which  together  shall  constitute  one and the  same
instrument.  A  counterpart  of  this  Agreement  or a  signature  page  of this
Agreement transmitted by facsimile machine or telecopier and showing a signature
shall have the same binding effect

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as an original bearing an original signature.  No party may raise the use of
a facsimile machine or telecopier or the fact that any signature was
transmitted through the use of a facsimile or telecopier machine as a defense
to the enforcement of this Agreement.

10.   INCORPORATION BY REFERENCE.  Lenders and Borrower hereby agree that all
of the terms of the Loan Documents are incorporated in and made a part of
this Agreement by this reference.

11.   STATUTORY NOTICE.  The following notice is given pursuant to Section
432.045 of the Missouri Revised Statutes; nothing contained in such notice
will be deemed to limit or modify the terms of the Loan Documents or this
Agreement:

         ORAL  AGREEMENTS  OR  COMMITMENTS  TO LOAN MONEY,  EXTEND  CREDIT OR TO
         FORBEAR FROM ENFORCING REPAYMENT OF A DEBT INCLUDING PROMISES TO EXTEND
         OR RENEW SUCH DEBT ARE NOT ENFORCEABLE. TO PROTECT YOU BORROWER(S)) AND
         US (CREDITOR) FROM  MISUNDERSTANDING OR DISAPPOINTMENT,  ANY AGREEMENTS
         WE REACH COVERING SUCH MATTERS ARE CONTAINED IN THIS WRITING,  WHICH IS
         THE  COMPLETE AND  EXCLUSIVE  STATEMENT  OF THE  AGREEMENT  BETWEEN US,
         EXCEPT AS WE MAY LATER AGREE IN WRITING TO MODIFY IT.

BORROWER AND LENDERS HEREBY AFFIRM THAT THERE IS NO UNWRITTEN ORAL CREDIT
AGREEMENT BETWEEN BORROWER AND LENDERS WITH RESPECT TO THE SUBJECT MATTER OF
THIS AGREEMENT.

                          [Next Page is Signature Page]

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         IN WITNESS WHEREOF,  the parties have caused this Agreement to be dully
executed by appropriate duly authorized officers as of May 14, 1997.

ALLIED HEALTHCARE PRODUCTS, INC.        LIFE SUPPORT PRODUCTS, INC.


        /s/ Barry F. Baker                    /s/ Barry F. Baker
By:  ______________________________     By:  ______________________________
Name:  Barry F. Baker                        Name:  Barry F. Baker 
Title:  VP Finance and CFO                   Title:  VP Finance and CFO
                                        
                                        

B&F MEDICAL PRODUCTS, INC.              HOSPITAL SYSTEMS, INC.




        /s/ Barry F. Baker                      /s/ Barry F. Baker
By:  ______________________________     By:  ______________________________
Name:  Barry F. Baker                   Name:  Barry F. Baker
Title:  VP Finance and CFO              Title:  VP Finance and CFO


BEAR MEDICAL SYSTEMS, INC.              BICORE MONITORING SYSTEMS, INC.


                                                
                                        
        /s/ Barry F. Baker                   /s/ Barry F. Baker
By:  ______________________________     By:  ______________________________
Name:  Barry F. Baker                   Name:  Barry F. Baker
Title:  VP Finance and CFO              Title:  VP Finance and CFO


THE BOATMEN'S NATIONAL BANK OF ST.      DRESDNER BANK A.G. NEW YORK AND
LOUIS                                   GRAND CAYMAN BRANCHES


         /s/ Robert W. Patton                  /s/ Thomas J. Nadramia
By:  ______________________________     By: ______________________________
Name:  Robert W. Patton                 Name:  Thomas J. Nadramia
Title:  Vice President                  Title:  Vice President

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FIRST BANK                              LASALLE NATIONAL BANK


        /s/ Brenda J. Laux                     /s/ David Klapp
By:  ______________________________     By:  ______________________________
Name:  Brenda J. Laux                   Name:  David Klapp
Title:  Senior Vice President           Title:  Vice President


THE SUMITOMO BANK, LIMITED              CREDITANSTALT CORPORATE FINANCE, INC.


                                               /s/ Christina T. Schoen
By:  ______________________________     By:  ______________________________
Name:  ___________________________      Name:  Christina T. Schoen
Title:  ____________________________    Title:  Vice President


                                               /s/ Arthur W. Seidel
By:  ______________________________     By:  ______________________________
Name:  ___________________________      Name:  Arthur W. Seidel
Title:  ____________________________    Title:  Vice President
                                        


MERCANTILE BANK NATIONAL ASSOCIATION    PNC BANK, NATIONAL ASSOCIATION


        /s/ Louis Hermann
By:  ______________________________     By:  ______________________________
Name:  Louis Hermann                    Name:  ___________________________
Title:  Vice President                  Title:  ____________________________


SANWA BUSINESS CREDIT CORPORATION


        /s/ Frank Sierdevich
By:  ______________________________
Name:  Frank Sierdevich
Title:  Vice President

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                                   EXHIBIT 13

                ADDITIONS TO EXHIBIT 13 OF THE LOAN AGREEMENT



None, if nothing listed below.

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