To clean calcium build up from parts of a Moistair humidifier, unplug the unit, and wipe down the parts with a 3 percent hydrogen peroxide solution, or use a mixture of warm water and chlorine bleach. Rinse the tank after cleaning so bleach and cleaning solutions do not become airborne.
Calcium build up and dirt within humidifiers can release bacteria, mold and harmful pollutants into the air that can trigger problems for individuals with allergies and asthma. Humidifiers should be cleaned every three days when used consistently, and filters should be changed regularly to prevent calcium build up.
Some manufacturers recommend using demineralized or distilled water in humidifiers because tap water consists of minerals that create deposits inside the unit that may promote bacterial growth. Releasing these minerals into the air can also increase the amount of dust that gathers within the home and on furniture. The water should also be changed regularly. When emptying the tank, homeowners should dry the inside surfaces and parts thoroughly as long as the unit is unplugged.
When Moistair humidifiers are not in use, they should be prepared for storage to prevent mildew, mold or calcium buildup. Home owners should drain the tank, clean the parts and dry the unit thoroughly. Old filters, cassettes and cartridges should be discarded if the humidifier is not in use and in storage.