Evaporative Cooling Fans cools certain types of equipment such as generators and compressors. These evaporative cooling fans operate through the use of a power supply and water. These cooling fans feature one-piece polyethylene plastic housing and high-tech polymer venturi with non-corrosive fan blades. Evaporative cooling fans are used to cool areas in manufacturing plants, garages, military bases and gymnasiums. These cooling fans provide effective spot cooling in horse stables & dog kennels.