For immediate release 28 September 2012

Porvair plc ("Porvair" "The Company")

Directors' Shareholdings

The Company was notified on 21 September 2012 and 27 September 2012 of the following purchases of Ordinary Shares by Andrew Walker and Ben Stocks respectively, pursuant to the Company's dividend reinvestment plan.

Director

Date of purchase

Number of Porvair shares purchased

Purchase price

Andrew Walker

7 Sept 2012

34

128p

In addition Ben Stocks has transferred 2,250 as a gift. Following these transactions, Andrew Walker is interested in 29,454 Ordinary Shares, representing approximately 0.07 per cent. of the Company's issued share capital, and Ben Stocks is interested in 131,199 Ordinary Shares, representing approximately 0.3 per cent. of the Company's issued share capital.

For further information, please contact:

Porvair plc


01553 765 500

Chris Tyler, Group Finance Director



Peel Hunt LLP


020 7418 8900

Daniel Harris




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