ABOUT WHITE DUST:
Use of high mineral content hard water may cause a white mineral residue to accumulate on surfaces
in the room near the humidifier. The mineral residue is commonly called "white dust." The higher the
mineral content (or, the harder your water is), the greater the potential for white dust. The white dust is
not caused by a defect in the humidifier. It is caused only by minerals suspended in the water.
HOW AND WHY TO USE DEMINERALIZATION CARTRIDGES:
The HoMedics demineralization cartridge will help reduce the potential for white dust, a deposit of
minerals left behind from using hard water in your humidifier.
The cartridge should be replaced every 30 – 40 fillings. The cartridge may need to be replaced more
often if you are using very hard water. Replace the cartridge when you notice an increase in white dust
build-up. If white dust still forms around the humidifier after a new cartridge has been installed, consider
using distilled water. To purchase new demineralization cartridges, model # UHE-HDC4, go back to the
retailer (where you purchased your humidifier), or visit (US) www.homedics.com, (CAN) www.homedics.ca
If you live in an area with hard water, or use a water softener, we recommend using distilled water for
better results from your humidifier. Never use water softening additives in your humidifier.
INSTALLATION INSTRUCTIONS
1. Remove demineralization cartridge from packaging and let it soak in water for 10 minutes.
2. Remove the tank from humidifier base and turn it over.
3. Unscrew the tank cap by turning the cap counter-clockwise.
4. Fill the tank with water as shown in the How to Fill section of the instructions included
with your humidifier.
5. Add the soaked demineralization cartridge into the tank.
6. Replace the tank cap by turning clockwise.
7. Place the tank back on the base.
Demineralization Cartridge
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CLEANING AND CARE
CAUTION: Before cleaning the unit, turn power off and unplug unit from the outlet.
TO CLEAN THE TANK
Remove the water tank from the humidifier base by lifting it from
the main unit. Unscrew the tank cap and rinse inside the tank with
clean water.
Every Day: Empty, rinse and dry the tank, tank cap and water
reservoir before refilling.
Every Week: To remove any scale or build up, use a 50/50 mixture
of white vinegar and lukewarm water to clean the inside of the tank.
TO CLEAN THE ULTRASONIC MEMBRANE
Every Day: Empty, rinse and dry the ultrasonic membrane and the
reservoir before refilling.
Every Week: Pour a 50/50 mixture of white vinegar and water on
the surface of the ultrasonic membrane and in the reservoir, then
soak for five minutes. Brush clean with a soft-bristle brush (not
included) and rinse.
NEVER touch the ultrasonic membrane with your fingers as the
natural oils in skin can damage the membrane.
NOTE: Never submerge the base in water or any liquid
TO CLEAN THE SURFACE
Clean the surface of the unit with a clean damp soft cloth as often
as needed.
Before Storing: Clean the Tank, Tank Cap, Reservoir and the
Ultrasonic Membrane with a 50/50 mixture of white vinegar and
water. Be sure to rinse and let all parts dry completely before
storing.
After Storing: Rinse the Tank, Tank Cap, Reservoir and Ultrasonic
Membrane with water. Dry completely before filling. Only fill the
tank just before operating.
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