... )HIGH PERFORMANCE; 3)Cools 1,800 sq. ft; 4)Industrial Air Conditioners; Variable Speed 1. Durable one-piece molded polyethylene housing ... . Efficient environmental protection, evaporated with water without harmful refrigerants5. Fresh air 0-6,700 CFM, cools 1,800 sq ft.6 ... . Almost maintenance-free operation and longer life. Air Delivery(CFM) 0-6,700Fan Motor(hp) 1/3Voltage (V ...