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1. Hold the protective mask with one hand, the side with the nose clip facing away;
2. Cover the nose, mouth and chin with a protective mask, and place the nose clip on the face.
3. Place the tips of two fingers on the metal nose clip, starting from the middle position, press the nose clip with your fingers pointing inward, and move and press to the sides respectively to shape the nose clip.
The important thing to consider is that if you go to a public place and do not contact the patient. Wearing surgical masks is sufficient to avoid excessive protection, but if you are in contact with the patient. If so, wear a mask of bio-resistant KN95.