Directors' Dealings

PORVAIR PLC
20 September 1999



     Disclosure of interests in shares or debentures and
notifications of dealings under the Stock Exchange requirements


                    DEALINGS BY DIRECTORS


1.   Name of Company

     PORVAIR PLC

2.   Name of Director

     MICHAEL OST

3.   Please state whether notification indicates that it is in
     respect  of holding of the Director named in 2  above  or
     holding of that person's spouse or children under the age
     of 18 or in respect of a non-beneficial interest.

     AS ABOVE

4.   Name  of  the registered holder(s) and, if more than  one
     holder,  the number of shares held by each of them.   (If
     notified)

     AS ABOVE

5.   Please  state whether notification relates to a person(s)
     connected with the Director named in 2 above and identify
     the connected person(s)

     -

6.   Please state the nature of the transaction and the nature
     and extent of the directors interest in the transaction

     PURCHASE OF SHARES

7.   Number of shares/amount of stock acquired

     2000 ORDINARY SHARES

8.   (     %) of issued Class

     -

9.   Number of shares/amount of stock disposed



10.  (     %) of issued Class



11.  Class of security

     ORDINARY SHARES OF 2P EACH

12.  Price per share

     160P

13.  Date of transaction

     16TH AUGUST 1999

14.  Date company informed

     17TH AUGUST 1999

15.  Total holding following this notification

     2000 ORDINARY SHARES

16.  Total  percentage holding of issued class following  this
     notification



20 September 1999