QAR Questair Tech

RNS Number:1246O
QuestAir Technologies Inc
28 June 2005


For Immediate Release                                             28 June, 2005


            QuestAir Technologies signs agreement with HyRadix Inc.
                  for supply of hydrogen purification systems

BURNABY, B.C. - QuestAir Technologies Inc. (AIM: QAR; TSX: QAR) a developer and
supplier of advanced gas purification systems for refinery, industrial and fuel
cell markets has signed an agreement to supply its H-3200 hydrogen purification
systems to HyRadix Inc., a leading developer of hydrogen generators for
industrial and hydrogen fueling applications. QuestAir also received a
US$263,000 purchase order from HyRadix for an initial delivery of H-3200 units,
to be completed over the next year.

Under the terms of the five-year preferred supplier agreement, QuestAir's H-3200
pressure swing adsorption ("PSA") systems will be integrated into HyRadix's
current range of Aptus(TM) and Adeo(TM) branded hydrogen generators. QuestAir's
H-3200 has been customized to replace HyRadix's existing PSA design. The
Aptus(TM) and Adeo(TM) hydrogen generators convert natural gas or propane to
hydrogen using proprietary high pressure auto-thermal reforming technology.
QuestAir's H-3200 will purify the hydrogen product to the demanding purity
specifications required for industrial and fuel cell markets.

Launched commercially in 2004, HyRadix's Aptus(TM) hydrogen generator targets
industrial markets including metals treating, float glass plants, semi-conductor
fabrication and edible oil processing. The Adeo(TM) is used in fueling stations
serving fuel cell vehicles and internal combustion engines running on hydrogen
or natural gas/hydrogen blends. In 2004, HyRadix installed its first commercial
Adeo(TM) system in a hydrogen refueling station at SunLine Transit Agency in
Thousand Palms, California.

Jonathan Wilkinson, President and CEO of QuestAir said, "HyRadix is well
positioned to become a leading supplier of hydrogen generation systems in both
industrial markets and the development of hydrogen fueling infrastructure. We
believe that HyRadix's range of hydrogen generators, including QuestAir's
purification equipment, will offer customers a strong economic proposition for
reliable on-site hydrogen supply."

Robert Gray, President and CEO of HyRadix said, "QuestAir's H-3200 PSA system
demonstrated excellent performance and reliability during a recent demonstration
test at our test facilities. These product features, combined with the small
footprint of the H-3200 design, make QuestAir's H-3200 the best choice for
HyRadix's commercial Aptus and Adeo hydrogen generators."

QuestAir's H-3200 purifies hydrogen-containing gas streams to high purity
hydrogen for use in industrial processes, hydrogen fueling stations and
stationary fuel cell power plants. The H-3200's optimized Pressure Swing
Adsorption ("PSA") process and proprietary rotary valve technology deliver
higher efficiency than conventional PSA systems in a more compact, cost
effective package. Since the product launch in 2003, QuestAir has sold more than
25 H-3200 systems to customers in Europe, Japan and North America.

Certain statements in this press release may constitute ''forward-looking''
statements which involve known and unknown risks, uncertainties and other
factors which may cause the actual results, performance or achievements of the
Company, or industry results, to be materially different from any future
results, performance or achievements expressed or implied by such
forward-looking statements. When used in this press release, such statements use
such words as "anticipate", "believe", "plan", "estimate", "expect", "intend", '
'may'', ''will'' and other similar terminology. These statements reflect current
expectations regarding future events and operating performance and speak only as
of the date of this press release. Forward-looking statements involve
significant risks and uncertainties, should not be read as guarantees of future
performance or results, and will not necessarily be accurate indications of
whether or not such results will be achieved. A number of factors could cause
actual results to differ materially from the results discussed in the
forward-looking statements.

About QuestAir Technologies Inc.

QuestAir Technologies, Inc. is a developer and supplier of proprietary gas
purification systems for several large international markets, including existing
markets such as oil refining, biogas production and natural gas processing, and
emerging markets such as fuel cell power plants and fuel cell vehicle refuelling
stations. The Company has joint development agreements with Exxon Mobil Research
and Engineering Company and Shell Hydrogen, and a collaboration with FuelCell
Energy. QuestAir is based in Burnaby, British Columbia and its shares trade on
the AIM Market of the London Stock Exchange Plc. and on the Toronto Stock
Exchange under the symbol "QAR".

About HyRadix Inc.

HyRadix, based in Des Plaines, Ill., is dedicated to the development and global
commercialization of hydrogen generation technology for hydrogen vehicle
refueling, industrial applications and for fuel cells. Using an innovative
combination of technology and equipment, HyRadix's hydrogen generating
appliances produce hydrogen from the common infrastructure fuels, natural gas
and LPG. For more information, please visit www.hyradix.com.

For further information please contact:

QuestAir Technologies Inc.:                HyRadix Inc.:
Andrew Hall                                David Cepla
Director, Corporate Development            Vice President, Business Development
Phone: (001) 604-453-6967                  Tel: 847-391-3534
Email: hall@questairinc.com                Email: David.Cepla@HyRadix.com
Web: www.questairinc.com                   Web: www.hyradix.com

UK media contact:
Charles Ryland
Ben Willey
Eleanor Williamson
Buchanan Communications
Phone: 020 7466 5000

Canadian media contact:
Terry Foster
James Hoggan + Associates
Phone: (001) 604-739-7500



                      This information is provided by RNS
            The company news service from the London Stock Exchange
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