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We recommend cleaning the humidifier once a week, more often if you have
hard water or notice a build up of impurities or detect unpleasant odors.
NOTE: THE USE OF OTHER WATER TREATMENT PRODUCTS MAY
DAMAGE THE FILTER OR HUMIDIFIER.
Cleaning involves two steps SCALE REMOVAL and DISINFECTING. Be sure to
perform these in the proper order to avoid harmful chemical interactions.
• First, turn off and unplug the humidifier.
• Remove the Water Tank and Motor Housing.
•Remove the Natural Cool Moisture™ filter from the Rinse-to-
Clean™ Base.
• Discard any residual water from the Base.
• Clean all outside surfaces with a dry, soft cloth. DO NOT USE WATER.
THIS MAY DAMAGE THE HUMIDIFIER OR CAUSE ELECTRIC SHOCK.
STEP ONE:
SCALE REMOVAL
RINSE-TO-CLEAN™ BASE
1. Fill the Rinse-to-Clean™ Base with
either:
• one cup (8 ozs, 250 ml) of
undiluted white vinegar
OR
• DuraRinse™ Humidifier
Cleaner, part no. AC-816,
following bottle instructions
2. Let solution stand for 20 minutes
3. With the vinegar or DuraRinse™ in
the Rinse-to-Clean™ Base clean all
interior surfaces with a soft cloth or
brush to help remove scales.
4. Rinse the Rinse-to-Clean™ Base
thoroughly with water to remove
scale and cleaning solution.
STEP TWO:
DISINFECTING
WATER TANK
1. Fill the water tank with:
• 1 teaspoon of household bleach
• 1 gallon (4 L) of water.
Pour some of this solution into the
Rinse-to-Clean™ Base.
2. Let solution stand for 20 minutes.
3. Rinse with water until the odor of
bleach is gone.
NOTE: Remove filter before cleaning
Failure to remove the filter during cleaning will destroy the filter
WEEKLY CLEANING
HU4075.01 HCM890/890C OM Eng 6/14/01 3:07 PM Page 6