Method of choosing FFP2 protective masks

First: the efficiency of the mask to high dust. The dust resistance efficiency of a respirator is based on its resistance to fine dust, especially respirable dust less than 5 μm. General gauze masks, the principle of dust resistance is mechanical filtration, that is, when dust collides with gauze, some large particles of dust will be separated in gauze through layers of barrier. But fine dust, especially dust less than 5 μm, passes through the mesh of the gauze and enters the respiratory system. There are some anti-particulate masks on the market for sale, the filter material is made up of permanent electrostatic fiber, the respirable dust less than 5 μm through the process of this filter material, will be attracted by static electricity and adsorption on the filter material, really play a role in preventing dust.

Second: mask and face shape close to the degree of good. When the mask is not close to the face, dust in the air can enter the respiratory tract through the gap around the mask. Therefore, people should choose a mask suitable for their face shape and wear it correctly.

Third: wear comfortable, including small respiratory resistance, light weight, wearing health, convenient maintenance, such as wearing an arch anti-particulate mask.