What is the use of 3d masks?
The 3D mask's dust blocking efficiency is based on its blocking efficiency against fine dust, especially respiratory dust below 5 microns. Because this particle size can directly enter the alveoli, it will affect human health. General gauze masks, the principle of dust blocking is mechanical filtering, that is, when the dust hits the gauze, through a layer by layer of blocking, some large particles of dust are blocked in the sand cloth. However, some fine dust, especially dust smaller than 5 microns, will pass through the mesh of gauze and enter the respiratory system. At present, there are some dust masks in foreign countries. The filter material is composed of electrostatically charged fibers. Respirable dust smaller than 5 microns is attracted by static electricity and trapped in the filter material. , Really play a role in blocking dust.