The degree of atomization depends on the characteristics and working conditions of the atomization device, as well as the characteristics of the liquid to be atomized. The characteristics of the atomization device are generally determined by its performance index. The main indicators of the nozzle performance of misting fog machine products are droplet size, atomization uniformity, range, spray width and spray volume. Due to the different types of misting fog machine products nozzles, the atomization principles are also different, so the factors affecting the spray quality are also different.

The main factors affecting the performance of misting fog machine products nozzle:

①Geometric size of misting fog machine products nozzle. For example, the diameter of the nozzle hole, the size of the vortex core and the vortex plate, the depth of the vortex chamber, the cross-sectional area of ​​the liquid inlet hole, etc., among which the nozzle hole diameter and the depth of the vortex chamber have a great influence. When the pressure is constant, the spray volume and spray angle of misting fog machine products nozzle increase with the increase of nozzle hole diameter. The shallower depth of the vortex chamber can make the droplets thinner, the spray angle increases, and the range decreases; on the contrary, the droplets become thicker, the spray angle decreases, and the range increases.

②The working pressure of liquid has a great influence on the spray quality. The droplet diameter decreases with the increase of pressure, but when the pressure increases to a certain value, the droplet diameter does not decrease significantly, while the spray volume and range of misting fog machine products nozzles increase with the increase of pressure, and the spray angle also increases.

③ The physical properties of the liquid medicine. The increase in the density and surface tension of the liquid can increase the diameter of the droplet, and vice versa.