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Fresh Air is now Ozone-free
in 'Normal' mode... |
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3-day Trial
Experiments
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FA Demonstrations
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FA Evaluation
Form |
Certified for Space |
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In March 2008,
EcoQuest introduced the Ozone-Free RCI Cell for the Fresh Air. This
new configuration for Fresh Air replaces the low oxidation or low-ox
cell Fresh Air. For in-home 3-day demonstrations, ozone-free in
'Normal mode' has allowed the customer to experience the benefits of
Fresh Air gradually. Even though the ozone output of the standard RCI
cell is very low (below .05 ppm), some customers have
found the standard RCI cell overpowering, especially in low humidity
conditions. The following describes the key points regarding this new
Fresh Air configuration and a recent study conducted by Dr. James
Marsden of Kansas State University, documenting the efficacy of the
ozone-free RCI cell.
Fresh Air
by EcoQuest – Now a Tri-Mode Device
Fresh Air has three operating modes providing the ultimate in versatility
and efficacy:
1.
Ozone-Free Mode (Normal Mode). The Fresh Air powers up in the Normal
Mode, which activates two forms of ionization, and the Certified Space
Technology RCI Cell which no produces absolutely no ozone.
2. Odor
Buster Mode.
This mode is activated by pressing the “High Mode” button on
the front panel. The High Mode activates the Purification
Plate which creates a low-level of ozone based upon the
space the Fresh Air is treating. Coverage area ranges from
250 sq ft all the way up to 3000 sq ft. When set to the
ventilated area (the area in sq ft which air
can reach), the ozone level ranges from .02 to
.04ppm, which is below the EPA limit and more than two times
below the OSHA limit. This mode provides the clean fresh
smell like after a rain storm and is excellent at dealing
with odors.
3. Sanitizer
Mode.
This mode is activated by pressing the Away Mode button. This mode is for
Unoccupied Space, meaning all humans and pets should be removed from the
area being treated prior to operation. The Away Mode generates high levels
of ozone (125% of the ozone produced at the 3000 sq ft
setting in High Mode), especially in areas under 1000 sq ft. Typical
ozone levels achieved are .20 to .25 ppm. By pressing the Away Mode Button
once, the timer is set to 2 hours, a second push of the button will set the
timer for four hours, three will set the timer for six hours and four will
set the timer for eight hours. This mode is excellent for clean-up of a
room someone has been sick in, or cleanup of cooking odors, pet odors,
biological spills (that is the polite term for someone
throwing up), paint and other VOC odors, Mold & Mildew, and other
issues the user may want to treat quickly.
What is the difference between the new Ozone-Free Fresh Air and the
Fresh Air Everest?
The Fresh Air has 3 modes as explained above. The Everest has one mode -
RCI purification. The Everest does produce a very very low level of ozone,
a level which meets even the stringent testing requirements of Health Canada
as well as future requirements set forth by the California Air Resource
Board.
Allen Johnston
Chief Technology Officer
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Ozone-Free RCI proven Effective based upon testing by Dr. James L. Marsden
Dr. James Marsden, Regents Distinguished Professor at Kansas State
University conducted the flowing tests on the new Ozone-Free RCI Cell:
Evaluation of EcoQuest Ozone-Free RCI Cell for
Reducing Microbiological Populations on Inoculated Stainless Steel Surfaces.
Dr. James L. Marsden
November 12, 2007
Executive Summary
In this study, a
specially designed Ozone-Free RCI cell was evaluated for reducing microbial
populations on inoculated stainless steel surfaces. Stainless Steel Coupons
(6.3 x 1.8 cm- #8 finish) were inoculated with Staphylococcus aureus and
Escherichia coli. The target inoculum was 6.0 log/cm2.
The inoculated coupons were placed into an environmental chamber (Terra
Universal, Anaheim, CA) and subjected to treatment with a Ozone-Free RCI
cell for periods of 0, 2, 6 and 24 hours. A control experiment was conducted
in which inoculated stainless steel coupons were placed in the environmental
chamber without an RCI cell and held for 0, 2, 6 and 24 hours. Temperature
and Relative humidity inside the chamber was maintained at 26° C and 50%.,
respectively. Ozone levels were monitored continuously using a Model 500
Aeroqual monitoring device. Levels of O3
in the test chamber were less than 0.005 ppm in the test and
control trials.
Exposure to the
Ozone-Free RCI Cell for a period of 24 hours resulted in a reduction of 2.1
log cfu/cm2
for Staphylococcus aureus and 1.7 log cfu/cm2
for Escherichia coli. The reductions at 6 hours were 1.4 log
cfu/cm2 for
Staphylococcus aureus and 1.1 log cfu/cm2
for Escherichia coli. Reductions after 2 hours were 0.9 log cfu/cm2
for Staphylococcus aureus and 0.7 log cfu/cm2
for Escherichia coli. In the control experiments, reductions in
Staphylococcus aureus and Escherichia coli were less than 0.02 log cfu/cm2
after 24 hours in the environmental chamber.
The results of this study demonstrate that the Ozone-Free RCI cell is
effective in reducing Staphylococcus aureus and Escherichia coli populations
on stainless steel surfaces. These results were comparable to the results
achieved in the peer reviewed and published paper authored by Dr. Marsden et
al using an ozone producing RCI Cell with O3
levels at or below .02ppm.
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Unit
name |
Order
number |
RCI Cell
order # |
RCI Cell
info |
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Fresh Air
walnut/graphite |
US40135BGRW |
70728 |
Has
“regular” RCI cell produces 0-360 ppm O3; Has O3 plate = can use via
square footage and “Away” mode |
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Fresh Air
Everest Walnut/Graphite |
US40377BGRW |
70852 |
Reduced
oxidation RCI cell produces minimal O3; No O3 plate (= no “Away”
mode) |
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Fresh Air
2.1 with O3-Free Active Pure Cell |
US40398BGRW |
71090 |
RCI cell
produces no O3; Has O3 plate = can use via square footage and “Away”
mode |
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“Low
Oxidation” Fresh Air
No longer
available to order factory direct |
US40135BGRW |
70852 |
Reduced
oxidation RCI cell produces minimal O3; Has O3 plate = can use via
square footage and “Away” mode |
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