The YUYUN SANHE supplied water air cooler adopts a water evaporation technology and achieves cooling with this physical method. This solves the problem of excessive Freon emission of general air conditioner. The power consumption of this product is only one tenth of the air conditioner. Compared to the traditional fans, its air temperature is reduced by 6-10 degrees. This air cooler has wide application and can be used to adjust humidity in places which need humidifying.