1. Keep your hands clean before wearing a mask.
2. Distinguish the front and back of the mask, keep the dark side facing out (or folds facing down), and the metal strip on top.
3. Hang the ear hooks on both ears, then pull up and down to open the folds, so that the mask covers the mouth, nose, and chin. Place the tips of your fingers along the metal strip of the bridge of the nose, from the middle to the sides, and slowly press inwards until they are snug bridge of the nose.
4. Properly adjust the mask so that the mask fits closely with the face until it covers the mouth and nose.
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