This is the powerful, yet quiet box fan that delivers refreshing breezes to bedrooms, living rooms, garages, or anywhere additional airflow is needed. At a cost of less than two cents per hour to operate, the fan features a patented “blue plug” fuse that cuts power if a power surge or other potentially hazardous electrical fault is detected. The fan’s three speeds are easily controlled with a top-mounted manual dial. Durable metal cabinet with carrying handle, plastic five-blade fan and grill. For indoor use only. 21 3/4" H x 20 1/2" W x 4 1/4" D. (7 1/4 lbs.)