RNS Number:8514B
QuestAir Technologies Inc
24 April 2006

For Immediate Release                                             24 April 2006  

                           QuestAir Technologies Inc.

QuestAir refinery program with ExxonMobil Research and Engineering passes Exxon
                                     review


VANCOUVER, B.C. - QuestAir Technologies Inc. (AIM: QAR; TSX: QAR) announced
today that its program with ExxonMobil Research and Engineering ("EMRE") to
develop a large capacity hydrogen purifier for use in oil refineries and
petrochemical plants has passed a critical internal Exxon Mobil program review.

The review recommended funding for the construction and testing of a prototype
pressure swing adsorption ("PSA") system at an Exxon Mobil refinery. QuestAir
expects to receive a final purchase order covering these items, with an
approximate value of US$2 million.

Jonathan Wilkinson, President and CEO of QuestAir, said that the Company has
been working with ExxonMobil Research and Engineering since 2003 to develop a
large capacity PSA system for use in oil refineries and petrochemical plants.


"Demonstration of the prototype PSA plant at an Exxon Mobil refinery is planned
to start in the second half of 2006, and we expect to begin jointly marketing
the product to refineries around the world beginning this year," Wilkinson said.


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".


Forward Looking Statements

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.


Contact Information:

QuestAir Technologies Inc.
Andrew Hall
Director, Corporate Development and External Communications
Phone: (001) 604-453-6967
Email: hall@questairinc.com

UK media contact:                            Canadian media contact:
Charles Ryland                               Terry Foster
Ben Willey                                   James Hoggan & Associates
Buchanan Communications                      Phone: (001) 604-739-7500
Phone: 020 7466 5000



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

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