RNS Number:6771Q
QuestAir Technologies Inc
05 February 2007

For Immediate Release                                          5 February, 2007
                                  QuestAir inc

      QuestAir to supply PSA to natural gas processing plant in California
                                        
   VANCOUVER, B.C. - QuestAir Technologies Inc. (AIM: QAR; TSX: QAR) announced
today that it will supply a M-3100 pressure swing adsorption ("PSA") system to
help a Los Angeles area gas processing plant meet the California Air Resources
Board CNG specification for natural gas. The customer is a large independent oil
producer in the Los Angeles Basin.

QuestAir's M-3100 PSA system will be used to increase production capacity at the
gas processing plant, allowing the customer to produce additional gas from
several wells that are currently curtailed. QuestAir's M-3100 will separate
carbon dioxide, water, ethane, propane and heavier hydrocarbons from natural gas
to meet the strict quality specifications of the gas customer, Southern
California Gas Company. It is expected that the project will have a payback of
8-10 months.

"This application is a logical extension of QuestAir's M-3100 PSA to meet the
specific requirements of gas processors in California," said Jonathan Wilkinson,
QuestAir's President and CEO.

"Gas utilities and the California Air Resources Board are imposing strict new
quality specifications on gas producers in California to increase the methane
content of the natural gas within the state. QuestAir's M-3100 offers gas
producers a compact, cost effective solution to separate hydrocarbons and other
constituents present in well-head gas in order to meet these demanding
specifications," Wilkinson said.

About the QuestAir M-3100
QuestAir's M-3100 purifies methane-containing gas streams to high purity
methane, removing contaminants such as CO2 and C2+ hydrocarbons. QuestAir's PSA
process and proprietary rotary valve technology deliver higher efficiency than
conventional PSA systems in a more compact, cost-effective package. QuestAir's
M-3100 system can upgrade up to 9 million cubic feet of feed gas per day.

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 refueling
stations. 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
Phone: (001) 604-453-6967
Email: hall@questairinc.com
Web: www.questairinc.com

UK media contact:                   Canadian media contact:
Charles Ryland                      Glen Edwards
Ben Willey                          Karyo Communications
Buchanan Communications             Phone: (001) 604-623-3007
Phone: +44 (0) 20 7466 5000

Canaccord Adams:
Mark Ashurst
Erin Needra
Phone: +44 207 050 6500



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

END
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