Transaction in Own Shares

Porvair PLC 15 December 2006 15 December 2006 Porvair plc - Transaction in Own Shares Porvair plc announces that on 15 December 2006 it purchased, to be held in treasury, 4,041 Ordinary 2p Shares (representing 0.01% of the issued Share Capital), at a price of 122p per Ordinary Share. The shares have been purchased to satisfy grants under employee share plans. Following the purchase of the 4,041 Ordinary Shares, the total number of treasury shares held by the Company will be 4,041. The issued share capital of the Company, less the total number of Ordinary Shares held in Treasury, will be 40,570,540 Ordinary 2p Shares. For further information, please contact: Porvair plc 01553 765 500 Chris Tyler, Group Finance Director This information is provided by RNS The company news service from the London Stock Exchange