... ; 3)Cools 2,500 sq. ft; 4) Portable evaporative cooling fan; Variable Speed 1. Durable one-piece molded polyethylene housing.2 ... protection, evaporated with water without harmful refrigerants5. Fresh air 0-12,000 CFM, cools 2,500 sq ft.6. Almost maintenance ... operation and longer life. Evaporative cooling Air Delivery(CFM) 0-12,000Fan Motor(hp) 1/2Voltage/ Frequency(V/Hz) 120V 2 ...