KN95 is among the highest in protective classes for respirator masks. That being said, there are still variations in construction: usually ranging from 3-4 layers. These masks offer the highest level of protection with 5 layers filtering the air from particles. Non-woven fabrics and filter cotton layers come to provide greater filtration.\nStay safer with these disposable personal breathing masks during coronavirus, flu and virus season. One of the highest protective classes (KN95), each respirator mask features 5-layers of protection from droplets, dust, bacteria, germs, smoke, and more.\nThese masks are safe, breathable, and hypoallergenic.\nTo fit yours:\n\nWash your hands before touching the mask\nunfold the mask\nhold the KN95 mask with your palm with the nose piece at your fingertips, hang straps freely either side\nbelow your hands\nplace the mask on the face and under your chin, then pull the elastic band behind the ears and untwist\nthe straps, positioning it low on your nose\nusing both hands, mould the nose piece by pushing downward and outward on both sides with your fingertips\n\nCheck your KN95 mask is fitted correctly by placing both hands completely over the mask and exhale sharply not disturbing the position of the mask. If air leaks around your nose adjust the nosepiece as described above.\nThese masks are non-bulky and lightweight, making it comfortable to wear.