Chemical dehumidification employs desiccants, chemical substances, to extract moisture from the air.
In this process, humid air is directed over or through materials such as silica gel, activated alumina, or calcium chloride.
These substances attract and retain water vapor from the air due to their strong affinity for moisture.
Consequently, the air's humidity is lowered, rendering it appropriate for applications demanding dry conditions.
Chemical dehumidifiers are frequently utilized in industrial settings, storage facilities, and air conditioning systems requiring stringent humidity regulation.
A key distinction from cooling-based dehumidification is that chemical methods do not involve refrigeration cycles.