FOR:  QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL:  QAR

December 12, 2007

QuestAir Technologies Announces 2007 Results and 2008 Milestones

BURNABY, BRITISH COLUMBIA--(Marketwire - Dec. 12, 2007) - QuestAir Technologies Inc. ("QuestAir" or
"the Company") (TSX:QAR)(AIM:QAR) reports its financial and operational results for the fiscal year
ended September 30, 2007 ("fiscal 2007"). All amounts are in Canadian dollars unless otherwise noted.

2007 Highlights

- Revenue of $7.0 million (2006: $7.6 million) for the fiscal year, in line with revised guidance
issued by management in May 2007. Revenue from gas purification systems increased 9% year over year,
but total revenue fell due to lower revenues from engineering service contracts.

- Sales order backlog at year end was the highest in the Company's history at $11.1 million, increased
119% from $5.0 million at September 30, 2006. Several large orders for gas purification equipment
contributed to this increase. Growth of system sales into biomethane applications was particularly
strong. A large engineering service contract valued at US$1.8 million that was received in the fourth
quarter also contributed to growth in sales order backlog.

- Cash used in operations and capital requirements of $10.5 million (2006: $9.4 million), in line with
revised guidance issued by management in May 2007.

- Net loss of $12.4 million ($0.24 per share) compared to $10.3 million ($0.24 per share) for fiscal
2006.

- The prototype H-6200 hydrogen purifier ("prototype plant") was shipped to an ExxonMobil refinery in
France, where it was installed and successfully started up subsequent to the end of the fiscal year.

Jonathan Wilkinson, President and CEO of QuestAir, said:

"We are very pleased with the growth we have seen in our commercial products. Although new bookings
for gas purification equipment grew 25% year over year, this figure understates our progress in fiscal
2007. Orders for our commercial products more than doubled during the fiscal year, excluding the $4.2
million for purchase orders related to the H-6200 prototype plant that were received in the prior
year. This growth was driven in large part by increased traction in the biogas market. Sales of biogas
purification equipment accounted for 47% of the total value of our gas purification system sales
during the year."

"In addition, we are delighted with the preliminary results of our field test of the prototype plant.
The H-6200 hydrogen purifier is working as designed, and has been operating continuously for over one
month at the refinery. This is a major milestone in the development of this rapid cycle PSA for
refinery applications, which QuestAir has been developing with ExxonMobil since 2003. We will continue
to collect data from the field test over the coming months in order to support our marketing efforts
and demonstrate the reliability of the product."

Operating Review & 2007 Milestone Update

During the year, QuestAir completed the installation and commissioning of two landmark biogas
projects. The multi-unit M-3100 system was successfully started up at the Rumpke Sanitary Landfill
near Cincinnati, Ohio. This system was installed as part of an expansion of the landfill's biomethane
recovery plant. QuestAir's pressure swing adsorption ("PSA") units are being used to purify landfill
gas up to pipeline grade methane. The Company also successfully commissioned an M-3200 system to
recover pipeline grade methane generated from animal waste at a dairy farm in Fennville, Michigan.
QuestAir's M-3200 system was installed as part of a plant that generates pipeline-grade methane as
well as electrical power from anaerobic digester gas.

The Company successfully penetrated the European biogas purification market in fiscal 2007. In the
second quarter, the Company received two orders for M-3200 systems that will be used in Switzerland to
purify biomethane from anaerobic digesters for injection into a natural gas pipeline. Later in the
fiscal year, the Company sold its first M-3200 to produce compressed natural gas ("CNG") vehicle fuel
from biogas. The biogas will be generated from anaerobic digestion of agricultural waste, and the
resulting bio-CNG will be used to fuel a bus fleet in the City of Salzburg, Austria.

At the same time, QuestAir continued to win orders for biogas purification systems in North America.
In June, the Company received an order valued at US$2.85 million from Phase 3 Developments &
Investments, for a multi-unit M-3100 system to be installed at a large scale biogas purification plant
in Iowa. The plant will be one of the largest commercial facilities in North America to generate
pipeline grade methane from organic waste, and is expected to be operational in the spring of 2008.
During the fourth quarter, the Company received an order from SCS Energy valued at Cdn$1.2 million for
an M-3100 methane recovery system that will be used by the University of New Hampshire in its new
landfill gas-to-energy cogeneration facility. QuestAir's M-3100 will increase the energy content of
landfill gas used to generate electricity in a turbine generator.

The Company also entered the well-head gas purification market in California. 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. After a successful
product demonstration, QuestAir received an order for an M-3100 system that will be used to purify
well-head gas in order to meet the tighter specifications for natural gas. QuestAir's M-3100 will
increase the production capacity of the customer's gas processing plant, allowing the customer to
produce additional gas from several wells that have been curtailed under the strict quality
specifications of the gas customer.

QuestAir also made notable progress in the industrial hydrogen market. During the year, the Company
received 2 orders for systems that will recover and purify hydrogen from off-gas at petrochemical
plants. The first such sale was also the Company's first sale into Latin America, where the H-3100
system will be installed at a facility in Sao Paulo, Brazil. The purified hydrogen will be used in the
production of polyethylene. In addition, Air Liquide purchased an M-3100 system to recover waste
hydrogen from a petrochemical plant in Odessa, Texas. The purified hydrogen will be reused in the
production process, and any excess will be compressed for sale to merchant gas customers.

In the fourth quarter, QuestAir received a $1.0 million order from Hydro-Chem for a large capacity H-
3200 hydrogen purifier, which will be used to generate hydrogen at an oil refinery in Montana. In
fiscal 2007 QuestAir expanded the capacity of its 9 bed H-3200 system in order to open up new markets
in the intermediate capacity range of the on-site hydrogen plant market. This is the first order for
this new, larger capacity H-3200 system, which is expected to be installed at the refinery in Montana
in the autumn of 2008.

During the year, the Company executed on many fronts with its key development partner, ExxonMobil
Research and Engineering ("EMRE"). The Joint Development Agreement ("JDA") with EMRE was renewed,
extending the exclusivity period of the research collaboration in the refinery and petrochemical
markets for a further 3 years. Following the extension of the JDA, QuestAir completed two small funded
research contracts with EMRE to assess the use of the H-6200 platform in a specific petrochemical
separation, as well as in the processing of "sour" natural gas.

In June, QuestAir shipped the H-6200 prototype plant to an ExxonMobil refinery in France, which was
the culmination of a significant amount of groundbreaking work since 2003. The prototype plant has
been commissioned and is being used in a commercial application at the refinery. Data generated from
the field test will be used to help secure commercial orders for H-6200 units to other refineries.

Late in the fiscal year, the Company received a US$1.8 million engineering services contract from EMRE
to complete the third phase of a program to develop a compact on-board hydrogen generator for use in a
range of transportation applications. The initial target market for this product is fuel cell powered
forklifts, with longer term markets including fuel cell powered vehicles.

In summary, the following progress was made towards the achievement of QuestAir's 2007 milestones:

/T/

---------------------------------------------------------------------------
Milestone                         Progress
---------------------------------------------------------------------------
1. Complete the installation and  Shipment of the prototype occurred
   start-up of the prototype      later than originally expected.
   H-6200 hydrogen purifier at    The prototype arrived at the ExxonMobil
   an ExxonMobil refinery         refinery during the fiscal year, and
                                  the installation and start-up of the
                                  prototype plant was completed in
                                  October 2007.

2. Receive the first purchase     Significant marketing efforts continued
   order for a commercial         throughout the year. However, a purchase
   H-6200 hydrogen purifier       order for a commercial H-6200 system was
                                  not received due in part to the delay
                                  in the H-6200 prototype test at the
                                  ExxonMobil refinery.

3. Sign an agreement to extend    Progress was made in this regard, with
   the H-6200 platform into       the extension of the JDA with EMRE which
   a new market                   allows for funded development of a
                                  product extension of the H-6200 into a
                                  new market. In addition, small scoping
                                  studies which evaluated the possibility
                                  of extending the H-6200 technology into
                                  another market were completed during the
                                  year. Efforts were subsequently
                                  redirected to completing the manufacture
                                  and installation of the prototype H-6200
                                  hydrogen purifier, such that this
                                  milestone was not completed during the
                                  fiscal year.

4. Secure first purchase order    This milestone was achieved in the second
   for a methane purification     quarter with the receipt of a purchase
   system in the European biogas  order for an M-3200 system for
   market                         installation in a Swiss biomethane
                                  purification plant.

5. Increase recognized revenue    In May 2007 management indicated that
   to between $9 and $10 million  recognized revenue would be lower than
                                  originally expected due to delays in
                                  receipts of engineering service
                                  contracts. Accordingly, management
                                  revised its recognized revenue guidance
                                  to $7 to $8 million for the fiscal year.
                                  This revised guidance was met.

6. Manage cash used in            In May 2007 management indicated that
   operations and capital         cash used in operations and capital
   expenditures to between $7     expenditures would be higher than
   and $8 million                 originally expected due to lower revenue
                                  from engineering service contracts,
                                  increased costs to complete the prototype
                                  plant, and a reorganization charge that
                                  was incurred in the third quarter.
                                  Accordingly, management revised its cash
                                  burn guidance to $10 to $12 million for
                                  the fiscal year. This revised guidance
                                  was met.
---------------------------------------------------------------------------

/T/

2008 Outlook and Milestones

Commenting of the outlook for fiscal 2008, Jonathan Wilkinson said:

"Fiscal 2008 will be an important year for QuestAir with the commercialization of the H-6200 hydrogen
purifier in the oil refining market. The data that is being collected from the field test at the
ExxonMobil refinery in France should help us secure the first sale of a fully commercial H-6200 system
in the oil refining market. We also expect to see continued growth in the sale of gas purifiers in the
industrial hydrogen and biogas markets."

QuestAir's operational and financial milestones for the remainder of fiscal 2008 are:

1. Enhance commercial footprint in the biogas market

Biomethane purification is expected to be one of the principal growth drivers of the Company in the
next 3 years. In fiscal 2008, QuestAir looks to increase its penetration of this market by securing
orders from at least 3 new customers and by signing at least one distribution agreement with a biogas
developer.

2. Grow industrial hydrogen business

In fiscal 2007, QuestAir commenced the sale of its large capacity H-3200 system in order to compete in
the intermediate capacity market for hydrogen systems. In fiscal 2008, QuestAir expects to sell a
greater number of larger capacity systems, which in turn will increase the average dollar value per
hydrogen PSA sold.

3. Secure first purchase order for a commercial H-6200 hydrogen purifier

With the prototype plant now up and running, QuestAir expects to be able to lever this demonstration
site to secure the first commercial order for an H-6200 hydrogen purifier.

4. Increase recognized revenue to between $9 and $10 million

Recognized revenue is expected to increase to between $9 and $10 million in fiscal 2008. This growth
primarily reflects the strong increase in backlog that was achieved during fiscal 2007. However, not
all of the orders in backlog are expected to be recognized as revenue during the fiscal year. The
Company's increased focus on selling larger units has extended the time between receipt of order and
recognition of revenue. In addition, customer schedules for equipment commissioning affect timing of
revenue recognition. Two large orders that were received in the fourth quarter of fiscal 2007 are not
expected to be recognized as revenue in fiscal 2008.

5. Manage cash used in operations and capital expenditures to less than $8 million

Cash used in operations and capital expenditures is expected to be less than $8 million, reduced from
$10.5 million in fiscal 2007. Cash will primarily be used to fund operations, with capital
expenditures accounting for approximately $1.0 million of the expected use of cash.

Fiscal 2007 Financial Results

Operating Results

The following table provides a breakdown of revenues from the sale of gas purification systems and
engineering service contracts for the reported periods:

/T/

--------------------------------------------------------------------------
                                          For the years ended September 30,
                                                    2007              2006
--------------------------------------------------------------------------
Gas purification systems                       6,322,595         5,808,488
Engineering service contracts                    689,571         1,749,605
--------------------------------------------------------------------------
Total revenue                                  7,012,166         7,558,093
--------------------------------------------------------------------------

/T/

Total recognized revenue for fiscal 2007 was $7,012,166 compared to $7,558,093 for the prior year.
Revenue from gas purification systems was up 9% year over year, while revenue from engineering service
contracts fell 61% in the current year. The increase in revenue from gas purification systems for
fiscal 2007 resulted from increased sales of commercial PSA systems including an M-3100 methane
recovery system for use in the landfill gas processing market, and revenue recognized towards the
construction of the prototype being demonstrated at an ExxonMobil refinery. For accounting purposes,
the sale of the prototype plant is treated as a long-term production-type contract, and is therefore
recognized on a percentage-of-completion basis in accordance with GAAP.

The decrease in revenue from engineering service contracts for fiscal 2007 resulted from a lower
volume of engineering service contracts in backlog for the first 9 months of the fiscal year compared
to the prior year. This resulted in reduced levels of work on engineering service contracts and less
revenue from such contracts. In the fourth quarter, a large engineering service contract from EMRE was
received, which will be recognized into revenue as work progresses throughout fiscal 2008.

Fluctuations in recognized revenue and the receipt of new sales orders are to be expected in the
industrial markets that the Company serves. In addition, the timing of receipt of new engineering
service contracts can vary from year to year. Consequently, management believes that both recognized
revenue and changes in sales order backlog should be monitored together to determine the strength of
QuestAir's commercial operations.

QuestAir's sales order backlog is defined as future revenue from signed contracts that have not yet
been recognized as revenue. The following table provides an analysis of the changes in sales order
backlog for the years ended September 30, 2007 and 2006.

/T/

--------------------------------------------------------------------------
(Unaudited)            For the year ended               For the year ended
                       September 30, 2007               September 30, 2006
                Gas      Engin-                  Gas      Engin-
             Purifi-    eering                Purifi-    eering
             cation    Service                cation    Service
            Systems  Contracts      Total    Systems  Contracts      Total
--------------------------------------------------------------------------
Opening
 Balance  4,908,298    135,594  5,043,892  2,239,778    767,770  3,007,548
 Book-
  ings   10,802,921  2,809,275 13,612,196  8,642,200  1,226,020  9,868,220
 Revenue (6,322,595)  (689,571)(7,012,166)(5,808,488)(1,749,605)(7,558,093)
  Recog-
   nized
   Adjust-
   ments
   (1)     (433,989)  (156,168)  (590,157)  (165,192)  (108,591)  (273,783)
--------------------------------------------------------------------------
Ending
 Balance  8,954,635  2,099,130 11,053,765  4,908,298    135,594  5,043,892
--------------------------------------------------------------------------

(1) Includes adjustments for fluctuations in foreign currency exchange
    rates.

/T/

The total sales order backlog increased by $6,009,873, or 119%, during fiscal 2007. The increase in
backlog over the fiscal year was driven by orders valued at $10,802,921 related to gas purification
systems, and $2,809,275 for engineering service orders. During the year QuestAir received several
orders for methane purification products, including an order valued at approximately US$2,850,000 for
an M-3100 system to upgrade anaerobic digester gas created from organic waste to pipeline quality
methane. QuestAir also received an order valued at approximately $1,200,000 for an M-3100 methane
recovery system for use in a landfill gas-to-energy project. Orders for hydrogen purification products
were also strong, and included two orders valued at approximately $600,000 each for H-3100 systems to
recover waste hydrogen from petrochemical plants. Engineering service contracts bookings include an
order valued at approximately $1,800,000 from EMRE related to the development of a compact rapid cycle
PSA unit for use in a benchtop on-board hydrogen generator. A negative adjustment was made to sales
order backlog as a result of foreign exchange fluctuations during the year.

QuestAir currently expects that the backlog as of September 30, 2007 will be substantially recognized
as revenue by December 31, 2008.

The following table provides a calculation of gross profit for the reported years:

/T/

--------------------------------------------------------------------------
                                          For the years ended September 30,
                                                    2007              2006
--------------------------------------------------------------------------
Revenue                                        7,012,166         7,558,093
Cost of goods sold                             6,973,668         6,432,954
--------------------------------------------------------------------------
Gross Profit                                      38,498         1,125,139
Gross Margin (%)                                     0.5%             14.9%
--------------------------------------------------------------------------

/T/

The decrease in gross profit for fiscal 2007 compared to the prior year resulted from the recognition
of an estimated loss of $1,912,663 on the prototype plant being sold to an ExxonMobil refinery.
$1,367,742 of this amount has already been incurred for salary and travel expenses related to
expediting suppliers and site visits. The balance of the loss, $544,921, represents an updated
estimate of future costs related to the prototype plant, of which $121,676 is management's estimated
loss to be incurred to complete the installation and commissioning of the prototype plant (which is
expected to be completed in the first quarter of fiscal 2008), and $423,245 is a warranty provision.
In fiscal 2006, the Company recognized an initial loss on the prototype plant of $419,172, being
management's best estimate of the anticipated future loss at that time. This amount has been incurred
by the Company.

Excluding the ExxonMobil prototype plant, gross margin on commercial equipment and engineering
services combined was $1,951,161, or 36% in fiscal 2007 compared to $1,544,311 or 40% in the prior
fiscal year. Margins are expected to fluctuate from year to year depending on the mix of revenues
recognized from engineering service contracts which typically contribute higher margins, and gas
purification systems.

Sales and marketing expenses were $2,051,248 for fiscal 2007, an increase of 6% compared to $1,938,537
for the prior year. The increase in sales and marketing expenses for fiscal 2007 was attributed to an
increased level of sales activities compared to the prior year.

The gross R&D expenditures, offsetting government funding and the resulting net R&D expenditures for
the relevant periods, were as follows:

/T/

--------------------------------------------------------------------------
                                          For the years ended September 30,
                                                    2007              2006
--------------------------------------------------------------------------
Gross R&D Expenditure                          5,888,966         6,907,360
Government & Partner Funding                    (374,929)       (1,815,186)
--------------------------------------------------------------------------
Net R&D Expenditure                            5,514,037         5,092,174
--------------------------------------------------------------------------

/T/

The 15% reduction in gross R&D expenditures for fiscal 2007 compared to the prior year was due to a
reduction in amount of R&D undertaken as resources were redirected towards supporting commercial sales
efforts and the construction of the prototype plant. Government funding, which is recognized as a
reduction in R&D expenses when collection is reasonably probable, fell during fiscal 2007 as the TPC
contribution agreement neared completion.

G&A expenses were $3,992,040 for fiscal 2007, an increase of 21% from $3,311,188 for the prior year.
The increase in G&A expenses for the year related to severance costs and termination benefits of
$564,030 related to the restructuring of operations being recognized in the third quarter of fiscal
2007. The balance of the increase in fiscal 2007 is related to increases in consulting, regulatory
fees and training costs, partially offset by reductions in investor relations, accounting and legal
fees.

Stock-based compensation expense was $458,067 for fiscal 2007, a decrease of 7% from $492,302 for the
prior year. Stock-based compensation expenses were higher for the prior year due to a stock
compensation charge related to the repricing of certain options at the time of QuestAir's IPO in
fiscal 2005.

Amortization expenses were $850,833 for fiscal 2007 compared to $1,223,788 for the prior year. The
decrease in amortization expenses was a result of certain capital assets becoming fully amortized
during the year.

Other income and expense netted to an expense of $47,752 for fiscal 2007 compared to income of
$177,630 in the prior year. Losses from foreign exchange fluctuations and unrealized losses on
embedded derivatives were only partially offset by interest income in the current year.

Net loss for fiscal 2007 was $12,417,412 ($0.24 per share) compared to $10,262,918 ($0.24 per share)
for the prior year. The increase in the net loss for the year was primarily a result of reduced gross
profit and higher G&A and net R&D expenses.

Loss per share is calculated based on the weighted average number of common shares outstanding through
the year. Loss per share was unchanged for the year as a result of an increase in the weighted average
number of common shares outstanding compared to the prior year.

Capital expenditures net of government funding and proceeds on sale ("Net CAPEX"), for fiscal 2007
were $412,249 compared to $1,052,668 for the prior year. Net CAPEX were higher in fiscal 2006
resulting from leasehold improvements made to new hydrogen testing facilities and expenditures on a
demonstration landfill gas processing plant installed at the Vancouver Landfill. It is expected that
capital expenditures will fluctuate from year to year depending on the requirements of specific
product development programs and administrative needs.

Liquidity and Capital Resources

At September 30, 2007 cash and short-term investments were $8,786,692, compared to $18,418,800 at
September 30, 2006. Not included in cash and short term investments at September 30, 2007 was $340,802
of restricted cash to secure letters of credit with customers.

Cash used by operations and capital requirements for the year ended September 30, 2007 was
$10,525,458, compared to $9,430,679 for the prior year. The increase in cash used by operations and
capital requirement for the year was driven by an increased loss for the year, as well as a decrease
in accounts payable. This was partially offset by an increase in deferred revenue and decreases in
amortization and Net CAPEX.

During fiscal 2005, the Company signed a credit facilities agreement with Comerica Bank. This
agreement is amended and restated each year as part of the annual renewal of these facilities, most
recently in June 2007. The amended credit facilities include a US$1 million accounts receivable line
of credit and a US$1 million term loan, in addition to amounts outstanding under the prior term loan
agreements. Both facilities are secured by the assets of the Company with certain exceptions. As at
September 30, 2007, the Company had drawn $920,336 against the term loans net of repayments, and no
funds have been drawn under either of the amended credit facilities. QuestAir is in compliance with
all bank covenants.

On June 6, 2003, QuestAir was awarded a $9,600,000 conditionally repayable loan from TPC, a funding
program administered by Industry Canada. At September 30, 2007, the Company had received $8,140,443
against this loan. These funds are repayable in the form of annual royalties under certain conditions.
The project completion date under the agreement is September 30, 2007. Subsequent to fiscal year end,
the Company entered into negotiations with TPC to amend this agreement to, among other things, delete
certain development milestones, extend the program completion date for certain other milestones, and
reduce the contribution amount and the associated royalties. There can be no assurance that an
amendment will be agreed to by the parties, or that any further funds will be available to support
additional development activities. Amounts drawn under this contribution agreement are subject to
final audit by Industry Canada.

QuestAir's authorized share capital consists of an unlimited number of common shares, of which
52,540,487 common shares were issued and outstanding as of September 30, 2007. In addition, the
Company had 4,767,925 stock options outstanding of which 3,815,842 were exercisable. Included in the
exercisable options are 1,885,381 options with an average exercise price of $1.38 and 221,223 options
that were issued in lieu of salary or bonus with an exercise price of $0.001 that will expire on or
before December 31, 2007. As at September 30, 2007 there were 192,308 warrants outstanding, unchanged
from the prior year. These warrants have an exercise price of $3.88 each and expire June 6, 2008.

Further information on QuestAir's financial results for the year ended September 30, 2007 can be found
in the Company's 'Management Discussion and Analysis' ("MD&A") at www.sedar.com.

/T/

Balance Sheets

--------------------------------------------------------------------------
Audited (expressed in Canadian dollars)             As at            As at
                                             September 30,    September 30,
                                                     2007             2006

ASSETS
Current assets:
Cash and cash equivalents                    $  5,726,245     $ 11,018,800
Restricted cash                                   340,802        1,256,354
Short-term investments                          3,060,447        7,400,000
Accounts receivable                             1,412,983        1,476,024
Grants and funding receivables                          -          454,597
Inventories                                     4,376,717        3,510,508
Prepaid expenses                                  256,378          337,335
                                             -----------------------------
                                               15,173,572       25,453,618

Long-term assets:
Property, plant and equipment                   1,703,872        2,103,626
Other long-term assets                            175,080          125,000
                                             -----------------------------
                                             $ 17,052,524     $ 27,682,244
                                             -----------------------------
                                             -----------------------------

LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
Accounts payable and accrued liabilities     $  2,791,139     $  4,413,717
Deferred revenue                                4,546,584        1,946,781
Current portion of bank debt                      564,306          351,398
Current portion of obligations under
 capital lease                                     97,822                -
Derivatives                                        75,874                -
                                             -----------------------------
                                                8,075,725        6,711,896

Long term liabilities:
Bank debt                                         356,030          532,852
Obligations under capital lease                    97,822                -
                                             -----------------------------
                                                8,529,577        7,244,748
                                             -----------------------------

Shareholders' equity:
Share capital
Authorized
 Unlimited common shares, voting, no par value
 Unlimited preferred shares, issuable in
  series, no par value
Common shares                                 109,383,859      109,020,202
Contributed surplus                             6,626,825        6,462,772
Deficit                                      (107,487,737)     (95,045,478)
                                             -----------------------------
                                                8,522,947       20,437,496
                                             -----------------------------
                                             $ 17,052,524     $ 27,682,244
                                             -----------------------------
                                             -----------------------------
--------------------------------------------------------------------------


Statements of Operations, Comprehensive Loss and Deficit

--------------------------------------------------------------------------
Audited (expressed in Canadian dollars)                For the years ended
                                             September 30,    September 30,
                                                     2007             2006

Revenues                                    $   7,012,166    $   7,558,093
Cost of goods sold                              6,973,668        6,432,954
                                             -----------------------------
Gross profit                                       38,498        1,125,139
                                             -----------------------------

Operating expenses
Research and development - net                  5,514,037        5,092,174
General and administration                      3,992,040        3,311,188
Sales and marketing                             2,051,248        1,938,537
Amortization                                      850,833        1,223,788
                                             -----------------------------

                                               12,408,158       11,565,687
                                             -----------------------------
Loss before undernoted                        (12,369,660)     (10,440,548)
                                             -----------------------------

Other income (expense)
Interest income                                   522,524          378,872
Other expense                                    (570,276)        (201,242)
                                             -----------------------------
                                                  (47,752)         177,630
                                             -----------------------------

Loss for the year                             (12,417,412)     (10,262,918)
Other comprehensive loss                                -                -
                                             -----------------------------
Comprehensive loss for the year               (12,417,412)     (10,262,918)
Deficit - Beginning of year                   (95,045,478)     (84,782,560)
Unrealized foreign exchange loss on
 derivatives                                      (24,847)               -
                                             -----------------------------
Deficit - End of year                       $(107,487,737)   $ (95,045,478)
                                             -----------------------------
                                             -----------------------------

Basic and diluted loss per share            $       (0.24)   $       (0.24)
Weighted average number of common
 shares outstanding                            52,473,306       42,426,280
--------------------------------------------------------------------------


Statements of Cash Flows

--------------------------------------------------------------------------
Audited (expressed in Canadian dollars)                For the years ended
                                             September 30,    September 30,
                                                     2007             2006

Cash flows from operating activities
Loss for the year                           $ (12,417,412)   $ (10,262,918)
 Items not involving cash
 Amortization                                     850,833        1,223,788
 (Gain) Loss on sale of property,
  plant and equipment                                (412)           8,619
 Unrealized foreign exchange loss on
  derivatives                                      51,027                -
 Stock based compensation expense                 458,067          492,302
 Foreign currency (gain) loss                     (32,489)             503
                                            ------------------------------
                                              (11,090,386)      (8,537,706)
                                            ------------------------------

Changes in non-cash operating working capital
 Accounts, grants and funding receivables         517,638         (361,454)
 Inventories                                     (866,209)      (1,546,335)
 Prepaid expenses                                  30,877         (162,579)
 Accounts payable and accrued liabilities      (1,304,932)       1,885,385
 Deferred revenue                               2,599,803          344,678
                                            ------------------------------
                                                  977,177          159,695
                                            ------------------------------
                                              (10,113,209)      (8,378,011)
                                            ------------------------------

Cash flows from investing activities
Increase in short-term investments             (3,060,447)      (7,400,000)
Decrease in short-term investments              7,400,000                -
Purchase of property, plant and equipment        (426,729)      (1,155,334)
Government grants and funding
 related to property, plant and equipment           5,434           96,791
Proceeds on sale of property, plant
 and equipment                                      9,046            5,875
Decrease (increase) in restricted cash            915,552       (1,153,958)
                                            ------------------------------
                                                4,842,856       (9,606,626)
                                            ------------------------------

Cash flows from financing activities
Issuance of common shares                               -       20,000,250
Share issue costs                                       -       (1,589,499)
Issuance of common shares on exercise
 of stock options                                  69,642          157,991
Repayment of obligations under capital lease     (127,930)        (110,860)
Repayment of bank debt                           (426,674)        (197,749)
Term loan advance                                 462,760          431,481
                                            ------------------------------
                                                  (22,202)      18,691,614
                                            ------------------------------
Increase in cash and equivalents               (5,292,555)         706,977
Cash and equivalents - Beginning of year       11,018,800       10,311,823
                                            ------------------------------
Cash and equivalents - End of year           $  5,726,245    $  11,018,800
                                            ------------------------------
                                            ------------------------------
--------------------------------------------------------------------------

/T/

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

This press release contains forward-looking statements. Forward looking statements generally can be
identified by the use of forward looking terminology such as "may", "will", "expect", "intend",
"anticipate", "plan", "foresee", "believe" or "continue" or the negatives of these terms or variations
of them or similar terminology. These forward looking statements include references to the future
success of our business, technology, and market opportunities. By their nature, forward looking
statements require QuestAir to make assumptions and are subject to important known and unknown risks
and uncertainties, which may cause QuestAir's actual results in future periods to differ materially
from forecasted results. While QuestAir considers its assumptions to be reasonable and appropriate
based on current information available, there is a risk that they may not be accurate. These forward
looking statements are neither promises nor guarantees, but involve known and unknown risks and
uncertainties that may cause the Company's actual results, level of activity, performance or
achievements to be materially different from any future results, levels of activity, performance or
achievements expressed in or implied by these forward looking statements. These risks include risks
related to general economic conditions, risks associated with revenue growth, operating results,
industry factors and QuestAir's general business environment, risks associated with doing business
with partners, risks involved with the development new products and technology, financing risks, such
as risks relating to liquidity and access to capital markets, and risks relating to competition, among
other factors. Readers are cautioned that the foregoing list of factors that may affect future growth,
results and performance is not exhaustive and undue reliance should not be placed on such forward
looking statements which speak only to the date they were made. QuestAir disclaims any obligation to
publicly update or revise any such statements to reflect any change in the Company's expectations or
in events, conditions, or circumstances on which any such statements may be based, or that may affect
the likelihood that actual results will differ from those set forth in the forward looking statements.



-30-

FOR FURTHER INFORMATION PLEASE CONTACT:

QuestAir Technologies Inc.
Sherry Tryssenaar
Chief Financial Officer
(604) 453-6902
Email: tryssenaar@questairinc.com
Website: www.questairinc.com

OR

Canaccord Adams
Robert Finlay
+44 (0) 20 7050 6500

OR

Canaccord Adams
Erin Needra
+44 (0) 20 7050 6500

OR

Buchanan Communications
Charles Ryland
UK Media Contact
+44 (0) 20 7466 5000

OR

Buchanan Communications
Ben Willey
UK Media Contact
+44 (0) 20 7466 5000

OR

Karyo Communications
Stephen Burega
Canadian Media Contact
(604) 623-3007

                                                                
QuestAir Technologies Inc.



                                                                

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