Adopting a two-stage atomization method, the pot body sprays the air-water mixture from the central hole through the siphon principle, achieving the first atomization; Then mix with the gas coming out from the nearby nozzle to achieve a second atomization. Achieve ultrafine atomization effect, with an average particle diameter of 8.5 microns and a humidification capacity of 0.6-17 liters/hour. The dry fog humidifier of Youyun brand is a national patent product with special design. Through high-precision nozzle processing and manual deburring, the air consumption of this product is only 140l/min under the condition of 3 bar working pressure and 10 L/H spray flow, which saves more than 35% of the gas consumption compared with the same domestic product; Each humidifier covers an area of approximately 100 square meters when the air is still on site at a height of 4 meters.