More details KN95 respirator:
Five layer filtration protection against bacteria, pollution, droplet, gases, odors, dust, pollen, song, PM2.5, germs
1. Layer one: non woven fabric
2. Layer two: melt-blown non woven
3. Layer three: non woven fabric
4. Layer four: filtration non woven fabric
5. Layer five: non woven fabric
6. Filtering rate ≥ 95%
7. 3D cut, comfortable to wear
