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 # HUM-
HDDC4-6CTM, go back to the retailer (where you purchased your humidifier), or
visit www.homedics.com
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.
Fig.10
Installing Instructions
1. Remove demineralization cartridge from packaging and let it soak in water
for 10 minutes.
2. To release the tank from the unit, place your fingers with your palm facing
upward into the recess in the tank handle. Press the tank release button with
your thumb. (Fig.3)
3. Place the soaked demineralization cartridge down onto post and into the
matching slot in the humidifier base. (Fig.11)
4. Place the tank back on the base. (Fig.8)
5. Press the tank handle into the base of the humidifier. You will know that the
tank is locked into place when the locking mechanism clicks and the tank
release button is in a raised position. (Fig.9)
Fig.11
10
NOTE: The demineralization Cartridge has no top or bottom. Either side can face
upward.
Cleaning and Care
CAUTION: Before cleaning the unit, turn power off and unplug unit from the outlet.
To Clean the Water Tank:
Remove the tank from the humidifier base by
lifting it from the main unit. Unscrew the tank
cap and rinse inside the tank with clean water.
(Fig. 12)
To remove any scale or build-up, use a 50/50
mixture of vinegar and lukewarm water to clean
Fig.12
the inside of the tank.
Suggestion: Clean the water tank once every
two to three weeks, depending on your water
conditions.
To Clean the Ultrasonic Membrane:
Put a small amount of mild dish soap on the
Fig.13
surface of the ultrasonic membrane, then pour in
some water and let soak for five minutes. Brush
clean with a soft-bristle brush (not included) and
rinse. (Fig. 14)
Suggestion: Clean the membrane once every
two to three weeks, depending on your water
conditions.
Fig.14
NOTE: Never submerge the base in water or
any liquid.
To Clean the Outer Surfaces:
Clean the surface of your humidifier with a clean,
damp, soft cloth as often as needed.
(Fig. 15)
Fig.15
1 1