Open your windows and let the air in with this 20-inch box fan. The weather resistant motor housing means you can place this fan in your window for air circulation with no worries. The 20-inch diameter fan blades provide powerful air flow and quiet operation on three fan speeds. Built for convenience, this box fan features an easy carry handle, recessed cord storage, and a removeable front grill for easy cleaning.Denali Aire 20 In. 3-Speed White Weather Resistant Box Fan