PUREAIR™ AIR PURIFICATION SYSTEM
HOMEOWNERS IAQ GUIDE FOR PUREAIR™ MODELS PCO-12C, PCO-20C
GENERAL
The PureAir™ air purification system helps to signif-
icantly reduce levels of airborne volatile organic
compounds, cooking odors, common household
odors, airborne dust particles and mold spores,
and pollen in residential spaces. The PureAir™ air
purification system includes a MERV 9 Pleated
Filter, UVA lamps, and a Metal Insert that is coated
with a titanium dioxide catalyst. As air enters the
system, a percentage of airborne particles and
bioaerosols, such as mold and bacteria, larger than
.3 microns are captured by the pleated filter. The
smaller airborne particles, odors, and chemicals
continue through the system. The UVA lamp acti-
vates the catalyst on the Metal Insert. The catalyst
combines with water vapor in the air to form
hydroxyl radicals that destroy a percentage of the
remaining odors and chemicals.
The PureAir™ air purification system is NOT
intended to be used for remediation of active
mold growth or high (industrial) levels of chemi-
cals in the air. For existing mold growth, the
mold must be remediated by a qualified service
provider PRIOR to installation of your PureAir™
air purification system.
NOTE:
If there is a sudden source of contamination
in your home [caused by burned food, cleaning an
oven, painting or hobby work that releases chemi-
cals (model airplanes, soldering, furniture finishing,
etc.)], the PureAir™ air purification system WILL
NOT reduce the odor immediately. In cases of sud-
den source contamination, open windows and
doors to rapidly reduce the concentration of the
contaminant.
INDOOR AIR QUALITY(IAQ) METHODS
Optimal indoor air quality can be obtained in a
home by using source reduction, ventilation,
humidification, and purification methods.
SOURCE REDUCTION
Identify and remove or reduce the sources of poor
indoor air quality in the home. Specific pollutants
which may affect indoor air quality include:
212512-00 Rev. 1B 5/02
©2001 Lennox Industries, Inc.
Dallas, Texas USA
Dirt & Dust: Prevent leakage of dirty air and dust
from unconditioned spaces (i.e. attics) into the
HVAC system by sealing the ducts with mastic or
aluminum tape along all joints. Use a vacuum
cleaner equipped with a HEPA filter to permanently
remove small dirt particles rather than simply redis-
tributing them, as is the case with a conventional
vacuum cleaner.
Odors/Chemicals: Remove sources of odors and
chemical contamination from the home and use
products that minimize contaminate levels in the air.
The new PureAir™ air purification system removes
and destroys odors/chemicals.
Mold: Minimize mold by controlling moisture.
Prevent roof and water pipe leaks and it is recom-
mended that relative humidity be kept between
30%-50%. Contact a contractor if you have a water
leak. Ask your Lennox dealer about products that
reduce humidity levels in the home [variable speed
air handlers/furnaces/compressors, humidity con-
trols and dehumidifiers (85X74)].
Once the mold is removed by a qualified mold
remediation company, the Healthy Climate™
PureAir™ air purification system [models PCO-12C
(75X69) and PCO-20C(75X61)] will help to remove
low level mold spores in the air.
Optional Healthy Climate™ Germicidal Lights
[models UV-500 (46X85), UV-1000 (46X87) and UV-
2000 (46X89)] greatly reduce new mold growth on
illuminated surfaces.
An accumulation of dirt and dust in the air ducts
creates an ideal site for mold growth. To ensure
optimal indoor air quality, non-porous insulation or
externally insulated ducts should be used, particu-
larly on the supply side (i.e. externally insulated
metal plenums and ducts or, smooth-lined flex duct
are preferred).
If your home has existing active mold growth, you
may need to work with a company that specializes
in mold remediation. Lennox is a sponsor of the
Indoor Air Quality Association (IAQA). Contact the
