"Waterproof Cooling Fan" is a wide open outdoor refrigeration system or style indoor refrigeration systems. You can easily move, which uses centrifugal technology instead of high-pressure technology. It did not tip. Therefore no need to consider the filtration system or nozzle clogging problems arising. No complicated or complex pump connection cable assembly. Movement, use and maintenance easy. Third gear speed. Can be tilted his head, the size of the amount of mist can be randomly adjusted. This spray dust suppression system can adjust the atmosphere, can reduce the water droplets to evaporate when the ambient temperature 4-8 degrees. You can use the surrounding area of 30-50 square meters. Make the environment clean, cool and comfortable.