QAR Questair Tech

RNS Number:3956N
QuestAir Technologies Inc
10 June 2005


QuestAir Technologies and Mitsubishi Kakoki Kaisha announce agreement to market
                         hydrogen purification systems

For Immediate Release                                             10 June, 2005

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 with Mitsubishi Kakoki Kaisha, Ltd.
("MKK"), a leading supplier of industrial hydrogen plants, to market QuestAir's
hydrogen purification systems in Japan and other Asian countries. Under the
non-exclusive agreement, MKK received the right to market QuestAir's 
HyQuestor(R) and QuestAir H-3200 pressure swing adsorption ("PSA") products in 
Japan, China and six other Asian countries. The initial term of the agreement is 
three years.

The agreement is the culmination of 4 years of cooperation between QuestAir and
MKK, during which QuestAir supplied MKK with four PSA systems for various
projects in Japan, including HyQuestor(R) PSA systems installed at a steel mill
operated by Stainless Kuze Co. Ltd in Hakui, and the Senju hydrogen fueling
station in Tokyo. These systems have accumulated over 24,000 hours of operation
since installation.

Jonathan Wilkinson, President and CEO of QuestAir, said that QuestAir has built
a strong relationship with MKK over the past four years. "We are very pleased to
formalize our relationship with MKK though this supply agreement. MKK is the
largest supplier of hydrogen plants in Japan, with over 90 plants installed to
date, and we expect that MKK's strong customer relationships and distribution
channels will expand QuestAir's access to high growth hydrogen markets in Japan,
China and other parts of Asia," Wilkinson said.

Mr. Kunio Yabuki, Managing Director/General Manager, Sales Division of MKK,
said, "QuestAir's compact, high efficiency hydrogen purification systems offer a
clear advantage over competing products, and the performance and reliability of
QuestAir's PSA products have exceeded our expectations. We look forward to
incorporating QuestAir's line of products into MKK's hydrogen generation plants
for industrial and fuel cell applications."

QuestAir's gas purification technology is based on its proprietary innovations
in pressure swing adsorption (PSA) technology that solve some of the inherent
disadvantages of conventional PSA. Conventional PSA technology was introduced
commercially in the 1960s and today is applied extensively in the production and
purification of hydrogen, oxygen and nitrogen for industrial uses. QuestAir's
fast-cycle PSA technology operates at significantly higher cycle speeds than
conventional PSA, resulting in a direct reduction in the size of equipment
required to purify a given volume of product gas. Since entering the Japanese
market in 2001, QuestAir has sold 8 PSA systems to Japanese customers, for use
in industrial applications and hydrogen fueling demonstrations.

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 Mitsubishi Kakoki Kaisha, Ltd.:

Mitsubishi Kakoki Kaisha, Ltd. ("MKK") was established in 1935 to meet a need
for chemical machinery manufactured domestically in Japan. MKK has grown
steadily as an all-round engineering company providing a wide variety of
chemical plants and machinery in various fields, including fertilizers, dyes,
mining, gas, synthetic fibers, steel, petrochemicals, semiconductors,
electronics, nuclear power, food, and medicine. MKK has been a pioneer in the
development of the hydrogen generation technology, and has delivered 68
large-scale hydrogen product plants (capacity: 1000 m3/hr) and 17 mid-scale
hydrogen product plants (capacity: 100-1000 m3/hr) since 1963. In 1988 MKK also
developed a small-scale, energy-saving and low-price hydrogen product plant
(capacity: up to 100 m3/hr) together with Tokyo Gas Group, and has delivered 14
plants. MKK is a public company based in Kawasaki, Japan.

For further information please contact:

QuestAir Technologies Inc.:             Mitsubishi Kakoki Kaisha, Ltd.:
Andrew Hall                             Hiromasa Ariga
Director, Corporate Development         Tel: 81-44-333-5428
Phone: (001) 604-453-6967               Email: ariga@kakoki.co.jp
Email: hall@questairinc.com
Web: www.questairinc.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

END
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