"Designed for safe, powerful cooling in areas where airborne gas or debris is potentially combustible. U.S.A. Amps 13.8, Oscillates deg. 0, Dimensions W x D x H in. 74 x 86 x 36, Air Delivery CFM 20,000, HP 1, Volts 110/220, Cooling Capacity sq. ft. 4,000, Water Reservoir gal. 25, Fan Diameter in. 48. 1 HP bronze motor, pump and switches are sealed to prevent sparking Durable polyethylene housing is rust and leak proof Requires hardwiring to prevent sparking"