APTOOK commercial dehumidifier’s job is to correct and maintain the proper level of humidity in an area. When the relative humidity goes above your set point, the dehumidification starts. Its fan will collect the humid air from the surrounding pulling it into the unit’s cooled coils. Condensation will then occur extracting the excess moisture from the air. The collected moisture will remain in the coils to be dripped down to the unit’s tank. The remaining air will then be reheated to the right level of temperature before being exhausted back to the room. The air output is now considered at a safe level of humidity.