The Advantage PEET powers air through the Air Chambers and DryPorts with a fan, to dry gear faster than our traditional natural convection models. The Advantage PEET dries most footwear in 1-4 hours, depending on the saturation of the item. The large, sturdy base can easily handle 2 pairs of heavy ski boots or skates and easily plugs into any standard 110-120 volt U.S. household currents. This product is equipped with ETL-approved fans and is also available in 220v electrical configurations(New Zealand and UK). Dry Responsibly with Peet.