The working principle of the desiccant wheel of the dehumidifier is to use the desiccant inside the wheel for dehumidification. The impeller is made of special composite high-temperature resistant materials and is divided into two fan-shaped areas, one for handling wet air and the other for regenerating air.

Regenerated air, due to the heat emitted during the desorption process, lowers its own temperature and becomes moist air with high moisture content, which is then discharged outdoors by the regeneration fan. This design greatly improves the dehumidification efficiency of the dehumidifier, while also having a compact structure, providing a huge surface area for sufficient contact between moist air and moisture absorbing media.