CERTIFICATE OF DESIGNATIONS, PREFERENCES AND RIGHTS
                           OF SERIES A PREFERRED STOCK

                                       of

                        ALLIED HEALTHCARE PRODUCTS, INC.



     Pursuant to the provisions of Section 151 of the General Corporation Law of
the State of Delaware.

     ALLIED   HEALTHCARE   PRODUCTS,   INC.,   a   Delaware   corporation   (the
"Corporation"),  certifies  that pursuant to the authority  conferred in Article
Fourth  of  its  Amended  and  Restated  Certificate  of  Incorporation,  and in
accordance with the provisions of Section 151 of the General  Corporation Law of
the  State of  Delaware,  its  Board of  Directors  has  adopted  the  following
resolution  establishing  and  designating  a series of shares  and  fixing  and
determining the relative rights and preferences thereof.

     RESOLVED,  that pursuant to the authority  vested in the Board of Directors
of this  Corporation  in  accordance  with the  provisions  of its  Amended  and
Restated  Certificate  of  Incorporation,  a series  of  Preferred  Stock of the
Corporation  be and it hereby is created,  and that the  designation  and amount
thereof and the voting powers, preferences and relative, participating, optional
and other special rights of the shares of such series,  and the  qualifications,
limitations or restrictions thereof are as follows:

        Section 1.  DESIGNATION AND AMOUNT.  The shares of such series  shall be
designated as "Series A Preferred  Stock" and the number of shares  constituting
such series shall be 200,000.

        Section 2.  DIVIDENDS AND DISTRIBUTIONS.

    (A)  Subject to the prior and superior rights of  the  holders of any shares
         of any  series  of  Preferred  Stock  ranking prior and superior to the
         shares  of  Series  A  Preferred Stock  with respect to dividends,  the
         holders of  shares  of  Series A Preferred  Stock in  preference to the
         holders  of  Common  Stock, par  value  $0.01  per  share (the  "Common
         Stock"),  shall be  entitled  to  receive,  when,  as  and  if declared
         by the  Board  of  Directors  out of  funds  legally  available for the
         purpose, quarterly dividends payable in cash on the first day of March,
         June,  September  and  December  in  each  year  (each  such date being
         referred   to   herein   as   a  "Quarterly  Dividend  Payment  Date"),
         commencing on the first  Quarterly  Dividend  Payment  Date  after  the
         first  issuance of a share or fraction of a share of Series A Preferred
         Stock, in an amount per share (rounded to the  nearest  cent)  equal to
         the greater of (a) $1.00 or (b) subject to the provision for adjustment
         hereinafter set


                                       



         forth,  one  hundred  (100)  times the  aggregate  per share  amount of
         all cash dividends, and one hundred (100) times the aggregate per share
         amount   (payable   in  kind)  of   all  non-cash  dividends  or  other
         distributions other than a dividend payable in shares  of  Common Stock
         or  a  subdivision  of  the  outstanding   shares  of  Common Stock (by
         reclassification or otherwise),  declared on the Common Stock since the
         immediately   preceding  Quarterly  Dividend  Payment  Date,  or,  with
         respect to the first Quarterly  Dividend  Payment Date, since the first
         issuance of any  share  or  fraction of  a share of Series A  Preferred
         Stock.  In the event the Corporation shall at any time after August 21,
         1996 (the "Rights Declaration Date") (i)  declare  any  dividend on the
         Common Stock  payable  in shares of Common Stock,  (ii)  subdivide  the
         outstanding  Common  Stock,  or (iii)  combine the  outstanding  Common
         Stock into a  smaller  number of  shares, then  in each  such  case the
         amount  to  which  holders  of shares of Series A Preferred  Stock were
         entitled  immediately  prior  to  such  event  under  clause (b) of the
         preceding  sentence  shall  be adjusted by multiplying such amount by a
         fraction,  the numerator of which is the number  of  shares  of  Common
         Stock  outstanding  immediately  after such event and  the  denominator
         of which is the number of shares of  Common Stock that were outstanding
         immediately prior to such event.

    (B)  The  Corporation shall declare a dividend or distribution on the Series
         A Preferred  Stock as provided in Paragraph (A) above immediately after
         it declares a dividend or distribution on the Common Stock (other  than
         a dividend  payable in shares of Common Stock);  provided  that, in the
         event  no  dividend  or  distribution  shall have  been declared on the
         Common Stock during the period between  any Quarterly Dividend  Payment
         Date  and  the  next  subsequent  Quarterly  Dividend  Payment  Date, a
         dividend  of $1.00  per  share  on  the Series A Preferred  Stock shall
         nevertheless   be   payable   on   such subsequent  Quarterly  Dividend
         Payment Date.


    (C)  Dividends shall begin to accrue and be cumulative on outstanding shares
         of Series  A Preferred Stock from  the Quarterly Dividend  Payment Date
         next preceding the date of issue  of such shares of Series  A Preferred
         Stock, unless the date of issue of  such  shares is prior to the record
         date  for  the  first  Quarterly  Dividend  Payment Date, in which case
         dividends on such shares shall begin to  accrue from the  date of issue
         of  such  shares,  or  unless the date of issue is a Quarterly Dividend
         Payment Date or is a  date after  the record date for the determination
         of holders of  shares of Series  A Preferred Stock entitled  to receive
         a quarterly dividend and before  such  Quarterly Dividend Payment Date,
         in either  of which events  such dividends shall begin to accrue and be
         cumulative  from  such  Quarterly  Dividend  Payment Date.  Accrued but
         unpaid dividends shall not bear interest.  Dividends



                                       2



         paid on the shares of Series A Preferred  Stock in an amount less  than
         the total amount of such dividends at  the  time accrued and payable on
         such  shares  shall be allocated  pro  rata on a  share-by-share  basis
         among all such shares at the time outstanding.  The  Board of Directors
         may fix a record date  for  the determination  of  holders of shares of
         Series A Preferred  Stock entitled to receive payment of  a dividend or
         distribution declared thereon,  which record date shall be no more than
         30 days prior to the date fixed for the payment thereof.

        Section 3. VOTING RIGHTS.  The holders of  shares of Series  A Preferred
Stock shall have the following voting rights:


    (A)  Subject  to the provision  for  adjustment  hereinafter set forth, each
         share of Series A Preferred Stock shall entitle the holder  thereof  to
         one  hundred  (100)  votes  on  all  matters submitted to a vote of the
         stockholders of the Corporation.  In the event  the  Corporation  shall
         at  any  time  after  the  Rights  Declaration  Date  (i)  declare  any
         dividend on the Common  Stock  payable  in shares of Common Stock, (ii)
         subdivide  the   outstanding  Common   Stock,  or  (iii)  combine   the
         outstanding Common Stock into a smaller number of shares,  then in each
         such case the number of  votes per share to which  holders of shares of
         Series  A  Preferred  Stock  were  entitled  immediately  prior to such
         event  shall be adjusted by multiplying such number by a fraction,  the
         numerator  of   which  is   the   number  of  shares  of  Common  Stock
         outstanding immediately  after such event  and the denominator of which
         is the  number of shares  of Common Stock outstanding immediately prior
         to such event.


    (B)  Except as otherwise  provided  herein or by law, the  holders of shares
         of Series  A Preferred  Stock and the holders of shares of Common Stock
         and any other  capital stock of the corporation having  general  voting
         rights shall vote  together  as  one  class  on all  matters  submitted
         to a vote  of stockholders of the Corporation.


     (C) (i)   If at any time dividends on any Series A Preferred Stock shall be
         in arrears in an amount equal to six (6) quarterly  dividends  thereon,
         the occurrence of such contingency shall mark the beginning of a period
         (herein called a "default  period")  which shall extend until such time
         when  all  accrued  and  unpaid  dividends  for all previous  quarterly
         dividend  periods and for the current  quarterly dividend period on all
         shares of  Series  A  Preferred Stock then outstanding  shall have been
         declared and paid or set apart for payment. During each default period,
         all holders  of  Preferred  Stock  (including  holders of  the Series A
         Preferred Stock) with dividends in



                                       3



         arrears in  an  amount  equal  to six (6) quarterly  dividends thereon,
         voting as a class, irrespective  of  series, shall  have the  right  to
         elect two (2) Directors.

         (ii)   During any default period, such voting  rights of the holders of
         Series A  Preferred  Stock  may  be  exercised  initially  at a special
         meeting  called  pursuant to  subparagraph  (iii) of this  Section 3(C)
         or  at  any  annual  meeting  of   stockholders,   and   thereafter  at
         annual meetings of stockholders,  provided  that  neither  such  voting
         right nor  the  right  of  the holders of any other series of Preferred
         Stock, if any, to  increase,  in  certain cases, the authorized  number
         of Directors shall be exercised unless the holders of ten percent (10%)
         in number of shares of Preferred Stock outstanding shall  be present in
         person  or  by proxy.  The absence of a quorum of the holders of Common
         Stock shall not affect the  exercise by the holders of Preferred  Stock
         of  such  voting  right.  At any   meeting  at  which  the  holders  of
         Preferred  Stock shall exercise  such voting right initially  during an
         existing  default  period,  they shall  have  the  right,  voting  as a
         class,  to elect  Directors  to fill  such  vacancies,  if any,  in the
         Board of Directors as may then exist up to two (2)Directors or, if such
         right is exercised at an annual meeting,  to elect two (2)Directors. If
         the  number  which  may  be  so elected at any special meeting does not
         amount to the required number, the holders of the Preferred Stock shall
         have the right  to  make  such  increase  in the number of Directors as
         shall  be  necessary  to  permit the  election by them of the  required
         number.  After the holders of the Preferred  Stock shall have exercised
         their  right to elect  Directors  in  any  default  period  and  during
         the  continuance  of such  period,  the  number of Directors  shall not
         be increased or decreased  except by  vote  of the holders of Preferred
         Stock as herein  provided  or  pursuant  to the  rights  of any  equity
         securities ranking senior to or PARI PASSU with  the Series A Preferred
         Stock.

         (iii) Unless the holders of Preferred Stock shall,  during an  existing
         default  period,  have  previously  exercised   their  right  to  elect
         Directors,  the Board of Directors  may  order, or  any  stockholder or
         stockholders owning  in the  aggregate  not less than ten percent (10%)
         of  the  total  number  of  shares  of   Preferred  Stock  outstanding,
         irrespective of series, may request, the calling  of a special  meeting
         of the holders of Preferred  Stock,  which meeting shall  thereupon  be
         called  by  the  President, a  Vice-President  or  the Secretary of the
         Corporation.  Notice  of  such  meeting  and of any  annual  meeting at
         which  holders of  Preferred  Stock are  entitled to vote  pursuant  to
         this  Paragraph (C)(iii) shall  be  given  to  each holder of record of
         Preferred Stock  by  mailing  a  copy of such notice to him at his last
         address as the  same  appears  on  the books of the  Corporation.  Such
         meeting  shall be called for  a time not  earlier than twenty (20) days
         and  not  later than sixty (60) days  after such order or request, such
         meeting  may  be  called  on  similar  notice  by  any  stockholder  or
         stockholders owning in the aggregate


                                       4



         not  less  than  ten  percent  (10%)  of  the total number of shares of
         Preferred Stock outstanding.  Notwithstanding  the  provisions  of this
         Paragraph (C)(iii), no such special  meeting  shall  be  called  during
         the  period  within  sixty  (60) days immediately  preceding  the  date
         fixed  for the  next  annual  meeting  of the stockholders.

         (iv)  In any  default period,  the  holders of  Common Stock, and other
         classes of stock of the  Corporation,  if  applicable,  shall  continue
         to be entitled to elect the whole number of Directors until the holders
         of Preferred Stock  shall have  exercised  their right to elect two (2)
         Directors  voting as a class,  after  the  exercise of  which right (x)
         the  Directors  so elected by  the holders  of  Preferred  Stock  shall
         continue in office until  their  successors  shall have been elected by
         such holders or until the expiration of the default period, and (y) any
         vacancy in the Board of Directors may (except as  provided in Paragraph
         (C)(ii) of  this  Section  3) be  filled by vote of a  majority  of the
         remaining  Directors  theretofore  elected by the  holders of the class
         of stock which elected  the  Director  whose  office  shall have become
         vacant.  References in this  Paragraph (C) to Directors  elected by the
         holders of a particular class of stock shall include Directors  elected
         by such  Directors to fill  vacancies  as provided in clause (y) of the
         foregoing sentence.

         (v)   Immediately  upon  the  expiration  of  a default period, (x) the
         right of the  holders of Preferred Stock as a class to elect  Directors
         shall cease,  (y) the  term  of  any  Directors  elected by the holders
         of Preferred Stock as  a  class  shall terminate, and (z) the number of
         Directors  shall  be  such  number  as  may  be  provided  for  in  the
         certificate of incorporation or by-laws  irrespective  of any  increase
         made pursuant to the provisions of Paragraph (C)(ii) of this Section  3
         (such  number  being  subject,  however,  to  change  thereafter in any
         manner  provided  by-law  or  in  the certificate  of  incorporation or
         by-laws).  Any  vacancies  in  the  Board  of Directors effected by the
         provisions of  clauses (y) and (z) in  the  preceding  sentence  may be
         filled by a majority of the remaining Directors.

    (D)  Except  as set forth herein,  holders of Series A Preferred Stock shall
         have no special voting rights and their  consent shall  not be required
         (except to the extent they are  entitled to vote with holders of Common
         Stock as set forth  herein) for taking any corporate action.

        Section 4. CERTAIN RESTRICTIONS.

    (A)  Whenever  quarterly  dividends  or  other  dividends  or  distributions
         payable on the Series A Preferred Stock as provided in Section 2 are in
         arrears,  thereafter  and  until  all  accrued and unpaid dividends and
         distributions,



                                       5



         whether  or  not declared,  on  shares  of  Series  A  Preferred  Stock
         outstanding shall have been paid in full, the Corporation shall not

         (i)   declare or pay dividends on, make any  other distributions on, or
         redeem or purchase or otherwise acquire  for consideration anyshares of
         stock  ranking  junior  (either  as  to  dividends or upon liquidation,
         dissolution or winding up) to the Series A Preferred Stock;

         (ii)  declare  or  pay  dividends on or  make  any  other distributions
         on any shares of stock  ranking  on a parity  (either  as to  dividends
         or  upon  liquidation,  dissolution  or  winding  up) with the Series A
         Preferred  Stock, except  dividends   paid  ratably   on  the  Series A
         Preferred  Stock  and all  such  parity  stock on which  dividends  are
         payable or in arrears in proportion to the total  amounts  to which the
         holders of all such shares are then entitled;

         (iii) redeem or purchase or otherwise acquire for consideration  shares
         of any stock  ranking  on a  parity  (either  as  to  dividends or upon
         liquidation, dissolution  or  winding  up) with  the Series A Preferred
         Stock,  provided that the Corporation may at any time redeem,  purchase
         or otherwise acquire shares  of  any such  parity stock in exchange for
         shares  of  any  stock of the  Corporation ranking junior (either as to
         dividends or upon dissolution, liquidation or winding up) to the Series
         A Preferred Stock; or

         (iv)  purchase or otherwise acquire  for  consideration  any  shares of
         Series A  Preferred  Stock, or any shares of  stock ranking on a parity
         with the Series A Preferred Stock, except in accordance with a purchase
         offer made in writing or by  publication  (as  determined  by the Board
         of  Directors)  to all holders  of  such  shares upon such terms as the
         Board  of Directors,  after  consideration  of  the  respective  annual
         dividend  rates  and  other  relative  rights  and  preferences  of the
         respective  series  and  classes, shall  determine  in  good faith will
         result in fair and equitable  treatment among the respective  series or
         classes.

    (B)  The  Corporation  shall not permit any subsidiary of the Corporation to
         purchase or otherwise acquire for consideration any  shares of stock of
         the  Corporation  unless  the  Corporation  could, under Paragraph  (A)
         of this Section 4,  purchase or otherwise  acquire such  shares at such
         time and in such manner.

        Section 5. REACQUIRED SHARES.  Any shares  of  Series  A Preferred Stock
purchased  or otherwise  acquired by the  Corporation  in any manner  whatsoever
shall be retired and canceled promptly after the acquisition  thereof.  All such
shares shall upon their  cancellation  become  authorized but unissued shares of
Preferred Stock and nay be reissued as



                                       6



part  of a new  series  of  Preferred  Stock  to be  created  by  resolution  or
resolutions   of  the  Board  of  Directors,   subject  to  the  conditions  and
restrictions on issuance set forth herein.

        Section 6. LIQUIDATION, DISSOLUTION OR WINDING UP.

    (A)  Upon any liquidation (voluntary or otherwise), dissolution  winding  up
         of the Corporation,  no distribution  shall be  made to  the holders of
         shares  of  stock  ranking  junior  (either  as  to  dividends  or upon
         liquidation, dissolution  or  winding  up) to  the  Series A  Preferred
         Stock  unless,  prior  thereto, the  holders  of  shares  of  Series  A
         Preferred  Stock  shall  have received $100 per  share,  plus an amount
         equal  to  accrued  and  unpaid  dividends  and  distributions thereon,
         whether or not declared, to  the  date  of such  payment (the "Series A
         Liquidation Preference").  Following the payment of  the full amount of
         the Series A Liquidation Preference,  no additional distributions shall
         be made to  the  holders  of shares of Series A Preferred Stock unless,
         prior thereto, the  holders  of  shares  of  Common  Stock  shall  have
         received  an amount per  share  (the "Common  Adjustment") equal to the
         quotient  obtained by dividing (i) the Series A Liquidation  Preference
         by (ii) one hundred (100) (as appropriately  adjusted  as  set forth in
         subparagraph  (C) below to reflect such  events as stock  splits, stock
         dividends and recapitalizations with respect to the Common Stock) (such
         number,  the "Adjustment  Number").  Following  the payment of the full
         amount of the Series A Liquidation Preference and the Common Adjustment
         in respect of all outstanding  shares  of  Series A Preferred Stock and
         Common Stock,  respectively, holders  of  Series A Preferred  Stock and
         holders  of  shares  of  Common  Stock shall receive their  ratable and
         proportionate  share of the  remaining  assets to be distributed in the
         ratio  of  the  Adjustment  Number  to  one (1) with  respect  to  such
         Preferred Stock and Common Stock, on a per share basis, respectively.


    (B)  In the event,  however, that there are not sufficient  assets available
         to permit  payment in  full of the Series A Liquidation  Preference and
         the  liquidation  preferences  of all other series of Preferred  Stock,
         if any, which rank on a parity with the Series A Preferred Stock,  then
         such  remaining assets  shall be distributed  ratably to the holders of
         such  parity  shares  in  proportion  to  their  respective liquidation
         preferences.  In the  event, however, that  there  are  not  sufficient
         assets available to permit  payment  in full of the Common  Adjustment,
         then such remaining assets shall be distributed  ratably to the holders
         of Common Stock.

    (C)  In  the  event  the  Corporation  shall  at  any  time after the Rights
         Declaration  Date (i)  declare  any  dividend  on Common  Stock payable
         in shares of Common Stock, (ii) subdivide the outstanding Common Stock,
         or



                                       7



        (iii) combine  the  outstanding Common Stock into a  smaller  number  of
        shares,  then  in  each  such  case  the  Adjustment  Number  in  effect
        immediately  prior to such event  shall be  adjusted by multiplying such
        Adjustment  Number by a fraction the numerator  of which  is the  number
        of  shares  of  Common  Stock  outstanding immediately  after such event
        and the  denominator  of which  is the  number of shares of Common Stock
        that were outstanding immediately prior to such event.

        Section 7. CONSOLIDATION, MERGER, ETC.  In  case  the  Corporation shall
enter into any consolidation,  merger, combination or other transaction in which
the shares of Common  Stock are  exchanged  for or changed  into other  stock or
securities,  cash and/or any other property, then in any such case the shares of
Series A  Preferred  Stock  shall at the same  time be  similarly  exchanged  or
changed  in an  amount  per  share  (subject  to the  provision  for  adjustment
hereinafter set forth) equal to one hundred (100) times the aggregate  amount of
stock, securities, cash and/or any other property (payable in kind), as the case
may be,  into  which or for which  each  share of  Common  Stock is  changed  or
exchanged.  In the  event the  Corporation  shall at any time  after the  Rights
Declaration  Date (i) declare any dividend on Common Stock  payable in shares of
Common Stock, (ii) subdivide the outstanding  Common Stock, or (iii) combine the
outstanding Common Stock into a smaller number of shares, then in each such case
the amount set forth in the  preceding  sentence with respect to the exchange or
change of shares of Series A Preferred  Stock  shall be adjusted by  multiplying
such  amount by a  fraction  the  numerator  of which is the number of shares of
Common Stock  outstanding  immediately  after such event and the  denominator of
which is the number of shares of Common Stock that were outstanding  immediately
prior to such event.


         Section 8. NO  REDEMPTION.  The  shares  of  Series  A Preferred  Stock
shall not be redeemable.

         Section 9. RANKING.  The Series  A Preferred Stock shall rank junior to
all other series of the  Corporation's  Preferred  Stock which may be created in
the future as to the payment of dividends and the distribution of assets, unless
the terms of any such series shall provide otherwise.

         Section 10. AMENDMENT.  The   Amended   and   Restated  Certificate  of
Incorporation  of the  Corporation  shall not be  further  amended in any manner
which would materially alter or change the powers, preferences or special rights
of the Series A  Preferred  Stock so as to affect  them  adversely  without  the
affirmative vote of the holders of a majority or more of the outstanding  shares
of Series A Preferred Stock, voting separately as a class.

         Section 11. FRACTIONAL SHARES.  Series A Preferred Stock  may be issued
in fractions of a share which shall  entitle the holder,  in  proportion to such
holder's  fractional  shares,  to exercise  voting  rights,  receive  dividends,
participate  in  distributions  and to have the  benefit of all other  rights of
holders of Series A Preferred Stock.



                                       8



          IN WITNESS WHEREOF,  ALLIED HEALTHCARE PRODUCTS,  INC. has caused this
Certificate of Designations,  Preferences and Rights of Series A Preferred Stock
to be executed by its President and Chief  Executive  Officer and attested to by
its Secretary this 21st day of August, 1996.


                                  ALLIED HEALTHCARE PRODUCTS, INC.

                                   
                                        /s/ James C. Janning
                                  By: ___________________________
                                      James C. Janning
                                      President and Chief Executive
                                      Officer
ATTEST:

     /s/ Barry F. Baker
By:____________________________
   Barry F. Baker
   Secretary


                                       9