5 Ply Disposable Protective Face Masks, 3D Foldable Fitting Design with Stretchy Ear Loops - KN95. Non medical / non surgical - 3 d face masks kn95 over the ear loop. KN95 masks: Providing a high defense against possible harmful airborne particles, kn95 protection masks can effectively filter non-oily particles in the air. made of high-quality material with multiple layers for superior protection, these masks adhere and cover from nose to chin to protect. Method of use: The nose clip part is facing up, the side without nose clip is facing the face, and the ear straps are pulled on each hand. Face the mask against the chin first, pull the ear band back to the ear, and hang it on the ear until it feels comfortable. Place the fingers of both hands in the middle of the nose clip and press inwardly according to the shape of the nose bridge to conform to the shape of the nose bridge.