... 828PCS/40GP,971PCS/40HQ Principle : Water spray mist fan working principle is high-pressure water spray out through the super-mico hole ... Temperature drop 3-5 centigrade, ,long-distance spraying,Usable area:30-80 square meters add humidity:20%-80%,Fan height:adjustable ... move,rainproof design,safe use,90 degree oscillation automatically,0-30 degree adjustable tilt ,three speed control,low noise, Using ...