What is Dessicant Dehumidifiers
An Introduction to Dessicant Dehumidifiers
Desiccant rotor dehumidifiers use a desiccant (a substance that adsorbs water in avapour state) such as salt or silica gel that is mounted on a rotating wheel (called a rotor). As the wheel turns, the desiccant passes through the incoming air where the moisture is adsorbed (collected onto the wheel surface) and the dried air is left to flow out. A flow of warm air is then passed through the desiccant wheel to ‘reactivate’ it and expel the moisture from its surface. The moisture is collected in the dehumidifier’s water tank or drained out through a hose. The wheel continues to rotate and the adsorption process is repeated.
The adsorption principle used in desiccant rotor dehumidifiers make them especially suited for high humidity levels even at low temperatures. Unlike other types of dehumidifiers, desiccant dehumidifiers are more stable across all temperatures and can reduce humidity to much lower levels. They also require little maintenance and are quieter and lighter.