Upgraded Material for Better Protection:KN95 maks adopt the electrostatic polarization precessed 5-layers of meltblown fabric, it has a higher absorbing ability and filtration efficiency than traditional disposable masks. The tested filter efficiency of this KN95 is >95%; More safety 5-Layer Structure:Breathable masks are made of skin-friendly non-woven fabric, including layers of non-woven cloth, layers of melt-blown fabric, layer of hot cotton. The 5-ply KN95 masks are designed for more protection than the 3-ply disposable masks. (Note: Some customers may mistake the 2 layers meltblown fabric, which is easy to stick together in production, into thinking that there is only layer. They can be separated by friction into 2 layers; Widely Use:Lightweight, foldable Masks fit perfectly in a purse, pocket, backpack or glove. Suitable for office, home, salon, cycling, grocery , doctors’ visits and simply general public. It’s the best to wear when you traveling through congested airports, bus terminals, malls, party and busy city streets. Keep you from dust, PM 2.5, haze, smoke, automobile exhaust, etc; Easy to Use:This 3D shape is designed according to the human shape to ensure the tightness. With soft and high elastic ear loop, the metal adjustable nose clip bridge and the dot matrix welding. Provide a light weight wearing experience for you; 24*7 :24 hours online to provide you with quality after-sales . We provide a three-year effective . We suggest you confirm if package and products are completely when you receive the KN95 masks. Disclaimer: This KN95 is NOT an N95 . For more information about KN95 masks please see the following before you purchase: .com/AboutKN95s.