KN95 is a four ply mask which is not only dust proof but protects against airborne germ contamination. It is reusable and can last up to 21 days.
It can save a person from different pollution and viruses that exist in the environment.
It is meant to help block dust particles, splashes, sprays, or anything that may contain germs (viruses and bacteria), keeping it away from reaching your mouth and nose. It is also breathable which will help reduce suffocation under long periods.
With soft elastic ear hooks, It is very easy to on your face, mold-able nose clamp makes it easy to reduce leakage. Approved on American standard, tested and proven under many circumstances.