Designed to operate anywhere, 24 hours a day. Place Air-Dryer on the floor in any damp, enclosed space and plug into a 110/120 volt outlet. The damp air is heated to the point moisture is held in suspension (above the dew point), then released through the top vents of the device. As warmed air rises, cooler damp air is drawn in, where it too is heated.
Air Dryer costs no more to operate than the burning of a light bulb. A thermal cutoff turns the unit off should air flow be impeded.