1. Blue face out. Disposable medical mask is divided into positive and negative, light color surface has moisture absorption function, should be close to the face, blue surface is waterproof layer, should face out.
2. Cover the mouth and nose. When wearing a disposable medical mask, the folding surface should be fully unfolded and the mouth, nose and jaw should be completely covered.
3. Press nose clip tightly. Press the bridge of nose with fingertips from inside to outside, move along the shape of the bridge of nose to both sides, and make the mask fit the face completely.
4. Throw it when you use it. Disposable medical masks are not reusable. If the mask is polluted, damaged or beyond the use time limit (generally 4 hours), it is necessary to hold the tie wrap and throw it into the covered waste mask collection bucket.