... saving ,150W 3,big water tank ,45L 4,environmental air cooling fan 5.With CE Portable air cooling fan for factory OFFICE 1, Parameter ... . The fan draws outside air through pads soaked with water. The evaporation of water lowers the temperature of the air as it passes through ... windows, doors or ceiling ducts. 6,Where to use Siboly Air Cooler 1 For indoor using: home ,office,class,restaurant ,etc.2 ...