Dehumidifier FAQs

How do dehumidifiers work?
Dehumidifiers have a cooling system that refrigerates the air entering the unit. The moisture in the air condenses on the cold coils and then deposits into a removable container (a.k.a. water container, water tank or water reservoir) located at the bottom of the unit. The cold air is then passed over a warm set of coils, which warms the now-dry air back to its original temperature.
How do I know if I need a dehumidifier?
How often do I need to empty my dehumidifier’s water container?
What kind of dehumidifier do I need for my home?
How long do dehumidifiers last?
How do dehumidifiers work?
Dehumidifiers have a cooling system that refrigerates the air entering the unit. The moisture in the air condenses on the cold coils and then deposits into a removable container (a.k.a. water container, water tank or water reservoir) located at the bottom of the unit. The cold air is then passed over a warm set of coils, which warms the now-dry air back to its original temperature.
How do I know if I need a dehumidifier?
Most homes and businesses in humid climates can benefit from the use of a dehumidifier. There are some obvious signs, too. Symptoms of excessive humidity include moisture marks on walls and ceilings, warped or damaged wood (wood swells in high humidity conditions) peeling wallpaper, blistered ceilings, creaky floors, sticking doors and cabinets, musty odors and mold growth. Of greater concern may be symptoms of mold and mildew allergies.
How often do I need to empty my dehumidifier’s water container?
This depends entirely on the humidity level in your home or business. Monitor water levels in the container to determine how frequently you’ll need to empty and clean your dehumidifier’s water container.
What kind of dehumidifier do I need for my home?
Portable dehumidifiers are available in a variety of moisture-removal capacities (usually identified as pints of water removal daily), to accommodate small or large spaces. There are also whole-house units available. Learn more about newer models in reports published by credible media such as Consumer Reports.
How long do dehumidifiers last?
The expected life of your dehumidifier will depend on usage and maintenance. In general, they last about six to nine years.