1,48 In. Portable Air Cooler 2,Cools 4,000 sq. ft 3,high performance 4, Variable Speed 5, Durable,energy-saving Variable Speed1. Durable one-piece molded plastic polyethylene housing.2. Equipped with high performance 1 h.p. variable speed motor.3. No need to install, portable, could be used immediately after connecting water and electricity.4. Efficient environmental protection, evaporated with ...