KN95 Face Mask

KN95 mask actually is a kind of respirator, a kind of respiratory protection equipment, which is designed to fit the face more tightly than the ordinary mask, and can filter the particles in the air very effectively. The character "N" indicates that it can be used to protect non-oil suspended particles; 95 means that the filtration efficiency is greater than or equal to 95%, indicating that after careful testing, this respirator can block at least 95% of very small (0.3 micron level) test particles.

By design, if ranked according to the priority of the wearer`s own protective ability (from high to low): KN95 masks > surgical masks > ordinary medical masks, ordinary cotton masks.