Supply Agreement Win

Porvair PLC
13 June 2005


For immediate release                                               13 June 2005

                            Porvair plc ('Porvair')
           Porvair wins aviation fuel tank inerting supply agreement

Porvair today announces that it has signed a supply agreement with Parker
Hannifin Corp, one of the world's leading aviation component manufacturers,
which is expected to generate at least $3m revenue in the first five years.  The
agreement is to supply filtration systems for Parker's aircraft fuel tank
inerting systems to be fitted to a range of commercial aircraft from the middle
of 2006.

The elimination of flammable fuel vapours in commercial aircraft fuel tanks is
one of the US National Transportation Safety Bureau's top priorities.  Parker's
lightweight aircraft fuel tank inerting system addresses this issue and can be
easily fitted within existing aircraft designs.  The system generates nitrogen
enriched air from a stream of engine air and delivers it into the aircraft fuel
tanks to reduce flammability.  The Porvair filtration system ensures that the
stream of engine air fed into the inerting system is free from particulate and
any liquid droplets.

Ben Stocks, CEO of Porvair plc said:

'We are delighted to have secured this contract with Parker Hannifin Corp.  This
is one of our key growth targets and we have been working closely with Parker
for the last three years to develop this important new filter system. This
contract continues our strategy of developing technologies for new applications
and further strengthens our aerospace business.'


Porvair plc
Ben Stocks, Chief Executive                                        01553 765 500
Chris Tyler, Group Finance Director                                01553 765 500

Buchanan Communications                                            0207 466 5000
Charles Ryland / Ben Willey

Notes to editors

Porvair is a group of specialist filtration and advanced materials businesses.
Its products are used in a range of niche filtration markets, and are derived
from its expertise in the development and manufacture of porous and microporous
ceramics, metals, plastics and carbons.



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