Thin and light, Nanofiber Filter , Ergonomic design
How to use
1. Wear the mask to cover your nose and chin.
2. Hook each strap over your ear to lock them in place.
3. Press the nose piece with the fingers of both hands so that mask is in close contact with your face.
4. Cover the entire mask with both hands and adjust it to fit the face to make sure there is no air leakage.