The effectiveness of KN95 masks is the same as that of N95, and it is one of the "appropriate substitutes". The filtration efficiency is 95% or above, which can prevent or reduce the dust, pollen and germs in the air from entering the human respiratory organs, such as anti-smog and anti-PM2.5.

One is made of pure cotton absorbent gauze or non-woven cloth material with filter paper in the middle, so as to improve the filtering effect of non-woven cloth mask.

The material of dust respirator is made of non-woven cloth. The functions of dust respirator are as follows: to prevent or reduce dust in the air from entering human respiratory organs so as to protect life and safety;

One is made of pure cotton absorbent gauze or non-woven cloth material with filter paper in the middle, so as to improve the filtering effect of non-woven cloth mask.