First, use the high-pressure water pump to pressurize the water to the micro atomizing nozzle for atomization and then spray it out. Then use the large air pressure and air volume of the professional spray host to send the atomized water to a gradual distance. With the rotation of the rotary mechanism, the atomization area can be covered by a maximum of 360 ° centered on the fan. Use the hydraulic cylinder of the hydraulic pump station to achieve the pitch angle spraying operation of the fan. The water mist can be sprayed to a certain physical height, The atomized micro fog combines with the dust of the air to form particles falling, so as to achieve the effect of dust reduction and air purification.