If you live in an area with a high mineral content in your water and are not using distilled or purified water then you may notice atomized minerals (white dust) on surfaces around the humidifier. If this is the case then you should use a demineralization cartridge. The cartridge for this unit is model number HDC-200.

Ensure that the tank cap is securely screwed onto the tank. Next, confirm the unit is set on a flat level surface and that there are no cracks on the tank. If this does not resolve the issue, please contact Consumer Relations by calling 800-477-0457 or emailing [email protected] 

With an ultrasonic humidifier, a built-in nebulizer vibrates the water at ultrasonic frequency which causes the water droplets to break into a fine, cool mist that you can see. In hard water areas, we recommend using demineralization cartridges with your ultrasonic humidifier to capture minerals in the water and to help reduce white dust on surfaces.

Scale Removal: 

Turn off and unplug the unit.  

Remove and empty the tank and base of any water 

Remove the mist nozzle, water tank, accessories and set aside. 

Fill water tank with 1 cup of distilled white vinegar, add mist nozzle, replace tank cap and place back on the base. Soak for 15-20 minutes. 

After soaking, using a soft damp cloth wipe the nebulizer to remove mineral deposits 

Gently rinse the water tank mist nozzle and base t with water until the smell of vinegar is gone. 

Disinfecting: 

NOTE: Bleach may stain clothes. It is recommended that you wear rubber gloves during this 

process to protect your hands. 

Turn off and plug the unit.  

Remove and empty the tank and base of any water. 

Remove the mist nozzle, water tank, accessories and set aside. 

Mix 1 gallon of water and 1 teaspoon of bleach.  Pour bleach solution into tank, add mist nozzle and replace tank cap.   

Place the tank on the base and let stand for 20 minutes. 

Gently rinse the water tank, mist nozzle base  with water until the smell of bleach is gone. 

Water is released onto a nebulizer that moves at ultrasonic speeds which turns the water into a mist. 

Check to make sure that the unit is plugged in, there is water in the tank, and that the unit is level.  If the humidifier still not producing mist, it could be a result of mineral deposits stuck on the nebulizer. 

The nebulizer, or white circle, that you see in the bottom of the base vibrates at ultrasonic speeds to create the mist that this unit gives off. Minerals from your water will collect on the nebulizer and once they harden, the nebulizer slows to a pace that is not sufficient to create mist. Clean the nebulizer (refer to Weekly Cleaning instructions).

With some humidifiers the mist put out by the unit is a visible mist. These types of appliances turn the water into a mist and release it into the air. The minerals that are in the water are also in the mist being released by the humidifier. As the moisture evaporates into the air, the minerals are left behind and will settle around nearby surfaces as dust, and in most cases it is white. It is not harmful in any way; it is just the mineral contents of your water. The amount of white dust you see is directly related to the hardness of your water. To reduce the amount of white dust, use distilled or purified water or Protec Demineralization Cartridges.