... Cools 1,800 sq. ft,/ 4, Variable Speed 5, Durable ,energy saving. 1)24 In. Variable Speed; 2)HIGH PERFORMANCE; 3)Cools 1, ... one-piece molded polyethylene housing.2. Equipped with high performance 1/3 h.p. variable speed motor.3. No need to install, ... connecting water and electricity.4. Efficient environmental protection, evaporated with water without harmful refrigerants5. Fresh air 0-7,000 CFM ...