Desiccant Dehumidifiers.

Desiccant dehumidifiers utilize chemical attraction instead of condensation to remove water from the air. Because they are not limited by low dew point temperatures and when used properly they produce the lowest vapor pressure of any dehumidifier.

Desiccant dehumidifiers have many applications in restorative drying, but they are most commonly used to dry dense materials such as hardwood floor.

Desiccants do not collect water in a pan for automatic pump-out instead , they produce damp reactivation air, which must be vented outside the structure using temporary ducting. In some situations this venting results in a pressure differential in the drying area.