1. The nose clip is facing outwards. Hold one ear band with both hands, making sure the nose clip is facing upwards:
2. Put on the mask, place the chin in the mask and buckle the Ear clip behind the ear with both hands;
3. Adjust the mask to a comfortable position and make it fit the face;
4. Press the index and middle fingers of both hands to adjust the nose clip until it is pressed against the bridge of the nose
5. Air tightness inspection
