Director/PDMR Shareholding

Porvair PLC
21 November 2005


                          Porvair plc (the 'Company')


                          Directors/PDMR Shareholdings


The Company was notified on 21 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

Andrew Walker                4,011           121p       4,011        0.010


21 November 2005


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