Buying Guide for Dehumidifiers

Functionality

• Dehumidifiers work by removing moisture from the air similar in a way to air conditions. The warm and moist air crosses the cooled coils and condenses on them, leaving the liquid to drop down into an drip pan or bucket. The air that is emitted from the dehumidifier is dry and warm. All units work in the same manner, whether they are designed for use in the home or on a commercial scale.

Removal Rate

• All dehumidifiers do not remove moisture at the same rate. If your room is incredibly large, you will need a dehumidifier that has a larger removal rate. Some of the larger, industrial size machines operate to remove up to 50 gallons of water a day, while other smaller, residential dehumidifiers for most homes remove anywhere from 30 to 70 pints of moisture in a day.

Temperature Range

• Each dehumidifier works specifically for a different temperature range. If you intend to use one in an area such as a basement or garage, purchase a dehumidifier that can operate at lower temperatures, possibly down to 32 degrees Fahrenheit. You may also want to purchase a dehumidifier if you reside in an area that has high humidity frequently, such as the Northeast where humidity is high from May to October with mild temperatures.

Energy Levels

• Different dehumidifiers use different amounts of energy. Generally the larger units require more power. A dehumidifier can range from 50 to 800 watts, depending on its size. If you are concerned about electricity costs, purchase one that is energy-star compliant for the maximum savings.

Noise

• Most dehumidifiers operate quietly, especially newer models. You may find that older models are a bit noisier than ideal. You may have to deal with a noisier unit if you need it to cover a larger area or place it in an area with higher levels of humidity.