Specialized design. The SaniDry™ XP has high-capacity, heavy-duty features designed for optimum performance in basements where temperatures are low and humidity levels are high. Collected water can drain directly into a sump pump, as shown here.
Learning about the different dehumidifier types and how they work will help ensure you have the right moisture-control solutions in your basement or crawl space. We need dehumidifiers because too much moisture causes problems - like mold that can damage materials, smell bad and trigger adverse health reactions. People are generally most comfortable indoors when the humidity level is between 30% and 50%. Mold has trouble growing when the humidity is below 50%. Dehumidifiers help to maintain optimal humidity levels by removing moisture from the air.
Desiccant dehumidifiers rely on basic absorption. A "desiccant" is a substance that reduces humidity by absorbing water molecules. The small "do not eat" canisters included in vitamin and medicine containers are silica gel desiccants that help keep these products dry. Similar desiccants are packaged along with clothing and other items that need to be kept dry. To reduce humidity in a closet, you can buy desiccant packets or pouches that can be dried out and reused after the desiccant material becomes saturated. There are also mechanically-based desiccant dehumidifiers that blow air over a desiccant such as silica gel or bentonite clay. An electrically-powered desiccant dehumidifier can dehumidify a small room.
Refrigerant-based dehumidifiers use cooling coils to force condensation. Some dehumidifiers work by blowing air over a refrigerated surface called a coil - the same technology that makes refrigerators and air conditioners work. In a refrigerant-type dehumidifier, droplets of condensed water collect on the coil as air passes over it; then this condensate drips down into a reservoir. Most dehumidifiers can be controlled by a humidistat: You set a target level of relative humidity, and the appliance will continue to operate until that humidity level is reached, or until the condensate reservoir is filled.
Better air filtration. Because basement air can have higher concentrations of dust, mold spores and dust mite debris, SaniDry™ dehumidifiers feature multi-stage air filtration that can trap these air pollutants.
Dehumidifiers are classified by capacity, efficiency, and function. When choosing a dehumidifier, learn more about dehumidification and focus on these three factors.
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