Free air output-rated centrifugal blower for use in heating and ventilation appliances Lightweight & portable–Convenientstorage and transportation and made with Phousing. Faster surface drying–Speed-dry carpets, floors, furniture, windows, and walls with acentrifugal air mover! By producing a powerful, focused air current, is optimalfor drying flat surfaces and tight areas. Versatile features–multi speeds and multi operating positions with a built-intimer. Not just for air drying, it’s for ventilation and increasing air circulation inrooms. This fan consume very less power & better efficiency.