1,24 In. Portable Air Cooler, 2,high performance, 3,Cools 1,800 sq. ft,/ 4, Variable ... 5, Durable ,energy saving. 1)24 In. Variable Speed; 2)HIGH PERFORMANCE; 3)Cools 1,800 sq. ft; 4)Industrial Air ... 1. Durable one-piece molded polyethylene housing.2. Equipped with high performance 1/3 h.p. variable speed motor.3. No ... density and others where need ventilation. 24In Portable evaporative air cooling unit