In order to illustrate the effectiveness of air purifiers, the first question to be answered is whether air purifiers can remove solid or gaseous pollutants in the air. This is from the purifier working principle to explain. For fine particles, what air purifiers need to do is to let fine particles stay on the filter screen in some ways. There are many ways to stop particles, which can be summed up in two ways: the particles hit themselves, or the filter traps them by some force. The former is naturally more effective for larger particles, while the latter is more effective for smaller particles. Those that are difficult to filter out in either way are those that are not too big or too small -- the standard fine particles (those with an aerodynamic diameter of 0.3 microns) that are used to calibrate the efficiency of the mesh. The two filtration principles are applied simultaneously in a consumable filter filter. For the high voltage electrostatic filter without consumables, adsorption is the main method and only one of them is used.

In short, for different pollutants, the basic principle of air purifier is to constantly make indoor air circulation, and use some means to adsorb pollutants in the air on the filter screen, and then the filtered air is discharged, recycling, to achieve the purpose of resisting pollution sources, purification of indoor air.