1. The light-colored side of the disposable mask faces inward (the reverse side), and the end with the metal strip faces up (upper), that is to say, the light-colored side is close to our face, and then the ropes at both ends are hung on the ears .
2. Use both hands to firmly press the metal strips on both sides of the bridge of the nose to make the upper end of the mask close to the bridge of the nose. Then stretch the mask downwards so that the mask does not leave wrinkles and better covers the nose and mouth.
3. Disposable masks cannot be reused. Wash your hands frequently and touch the masks less frequently.
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Precautions for buying anti-smog masks
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