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. 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 buildup. If white dust still forms around the
humidifier after a new cartridge has been installed, consider using distilled water.
If you live in an area with hard water or use a water softener, we recommend using distilled water
for best 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 counterclockwise.
4. Fill the tank with water as shown in the How to Fill section of the instructions.
5. Add the soaked demineralization cartridge to the tank.
6. Replace the tank cap by turning clockwise.
7. Turn the tank over and place the tank back on the base.
Demineralization Cartridge
To purchase new Demineralization Cartridges, model #UHE-HDC4, go back to the retailer where you purchased your humidifier, or visit
www.homedics.com.
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