Director/PDMR Shareholding

Porvair PLC
02 November 2005



                          Porvair plc (the 'Company')


                          Directors/PDMR Shareholdings


The Company was notified on 2 November 2005 that on the same day certain
Directors increased their respective holdings in the Company's ordinary shares
of 2p each ('Ordinary Shares') as detailed below.

Director           No. of Ordinary Purchase price   Resultant  % of the issued
                            Shares   per Ordinary  beneficial  share capital
                         purchased          Share    interest

John Morgan                 50,000            110p    805,816         2.19
Ben Stocks                  10,800            110p     91,850         0.25
Christopher Tyler            4,500            110p      9,500         0.03

2 November 2005








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