
Whole-Home Humidifiers
Healthy Climate
Indoor Air Quality Systems
®
Power and Bypass Humidifiers
Moisture control that helps make your
home’s air healthier and more comfortable

Healthy Climate® Power and Bypass Humidifiers
Help control problems
associated with dry indoor
air, providing optimal
comfort and air quality
Work with your central
comfort system to add
moisture as needed to
circulated indoor air
EquaFlo™ channel
design provides even
water distribution for
optimal moisture
Dry air is not good for your family’s comfort—or health. Too little
moisture inside your home can cause skin irritation, sore throats and
respiratory problems,** not to mention annoying static shocks. It can
also damage home furnishings, making the wood in furniture and floors
shrink, warp and crack.
THE PROBLEM OF DRY INDOOR AIR
A phrase commonly associated with moisture in the air is relative humidity
(RH), the percentage of water vapor in the air in relation to how much water
the air can hold at a given temperature. In the winter, the air in your home
is much drier because as the cold air is heated, it expands, causing the
relative humidity level to decrease.
WINTER INDOOR HUMIDITY LEVELS
Warranty*
5-year limited warranty
on covered components.
* Applies to residential applications
only. See actual warranty certificate
for details.
** Exposure to excessively dry air (relative
humidity of less than 20%) can cause
respiratory irritation. Source: American
Academy of Allergy, Asthma and
Immunology.
2
In the winter, the relative
humidity inside the home
can be less than 20%,
significantly less than the
recommended level.
The Perfect Solution to Dry Indoor Air
Healthy Climate® humidifiers, working together with your central comfort
system, help maintain just-right moisture levels. With three capacities and
two control options, you can trust Healthy Climate humidifiers to provide
the right solution for your home’s needs.
Why Portable Humidifiers Aren’t the Best Choice
Portable humidifiers are designed only for use in a specific room, not the
whole home, and require constant filling. Also, the filter in typical tabletop
humidifiers or vaporizers requires constant cleaning because it can quickly
become clogged with dirt, bacteria and mold.

BALANCED HUMIDITY FOR A HEALTHIER, MORE COMFORTABLE HOME
OPTIMAL COMFORT ZONE
Decrease in bar width indicates
decrease in effect
Bacteria
Viruses
Fungi
Mites
Allergic rhinitis
and asthma
Chemical
interactions
Ozone
production
10 20 30 40 50 60 70 80 90
Comfort Zone
Relative Humidity (%)
For optimal comfort and health, national studies indicate
that your home’s relative humidity levels should range
between 30 and 60 percent.
HCWP18
HCWB17
HCWB12
Power Humidifier
◆
18-gallon capacity per day
◆
EquaFlo™ distribution tray
for optimal moisture
◆
Equipped with a built-in fan
that circulates humidified air
throughout the home
Bypass Humidifiers
◆
17-gallon capacity per day
◆
EquaFlo distribution tray
for optimal moisture
◆
Uses the air handler or furnace
fan to direct humidified air
throughout the home
◆
12-gallon capacity per day
◆
EquaFlo distribution tray
for optimal moisture
◆
Uses the air handler or furnace
fan to direct humidified air
throughout the home
ADDED MOISTURE FOR WHOLE-HOME COMFORT
The Benefits of Balanced Humidity
Enhanced comfort – Humidified air feels warmer, and it helps reduce occurrences
of dry skin, chapped lips and static shocks.
Healthier home – Proper moisture levels help lower risk of respiratory infections.
Preservation of furnishings – During winter months, a humidifier helps prevent
damage to wood in floors, trim and furnishings.
All this, with the added benefit of minimal maintenance.
A Healthy Climate® humidifier
uses the evaporative humidification
process that introduces moisture
in the form of water vapor. This
process optimizes the distribution
of moisture, helps prevent the
buildup of minerals, bacteria and
mold, and minimizes the amount
of maintenance required to achieve
maximum comfort.
The Healthy Climate® Collection is the
industry’s first comprehensive line of
ozone-free indoor air quality products.
3

1 Air conditioner or heat pump
2 Thermostat
3 Furnace or air handler
4 Filtration device
5 Germicidal light
6 Indoor coil
7 Humidifier
8 HEPA bypass filtration system
9 Energy recovery ventilator
Supply duct
Return duct
Dehumidifier system
Residential generator
CUSTOMIZE YOUR COMFORT
Lennox® heating, cooling and indoor air quality products are designed to
provide efficient, economical comfort—not only as individual units, but also
together as an integrated system. This combined network of products delivers
on every comfort count, from consistent temperatures and balanced humidity to improved indoor air quality. Lennox
also offers a line of residential generators, which provide safe, reliable standby power in the event of outages.
DEALERS YOU CAN COUNT ON
Choosing the right dealer for your home’s heating, cooling and air quality needs is every bit as important as choosing the
right brand. We think you’ll agree our independent dealers are a big reason you can count on quality customer service
whenever you call. Your Lennox dealer’s dedication to quality shows in his knowledge, training and expertise in designing
the right system for your home, installing it properly and keeping it running perfectly for many years to come.
© Lennox Industries Inc. 2007
Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.
(27M27) HCW P/HC WB 07/ 08 P C54955