... environmental protection, evaporated with water without harmful refrigerants5. Fresh air 0-20,000 CFM, cools 4,000 sq ft. ... 6. Almost maintenance-free operation and longer life. Air Delivery(CFM) 20,000Fan Motor(hp) 1Voltage (V) 115 ... reservoir (Gal) 50Weight(lbs) 360 Application areas:Body shops, service garages, air hangers, livestock, warehousing, production lines, school events, outdoor ...