In fact, face masks are disposable masks. These types of surgical masks are commonly used in the medical and health industries. Masks are very versatile and cannot be used for fog and dust protection.

The wearing method is as follows:

1. There are white and blue on both sides, with the white face facing inward and the metal strip on the side facing upward. The two strips are tied at the back of the neck, and the lower edge of the mask reaches the root of the chin.

2. Pull the edge band up, cover the nose and mouth, and tie the two bands behind the ears.

3. Press the nose line with two index fingers, close to the nose, then gradually move to the sides, so that the mask is close to the facial skin;

4. After taking off the mask, put it into the paper bag and throw it into the trash can. Wash your hands in time and do not reuse it.

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