KN95 is a Chinese standard mask. KN95 mask is a type of mask with particle filtering efficiency in China. KN95 mask and N95 mask are actually the same in terms of particle filtering efficiency. The lightweight structure provides reliable breathing protection for the user. The protective mask adopts high-efficiency electrostatic filter technology, which reduces the breathing resistance as much as possible on the premise of meeting the filtering efficiency performance. At the same time, it meets the needs of users for the protective performance and comfort performance of masks. The overall design of the mask enables it to be used with a variety of eye and face protection and hearing protection products. Adjustable nose clips and soft nose pads can help different users achieve good face adhesion and reduce the possibility of fogging the glasses.