The Correct Steps For Wearing A Half Face Mask

Adjust the headband buckle: Ensure that the filter key is connected to the face mask, adjust the buckle position on the headband to fit the head circumference, and also allow the adjustment buckles on both sides to bend inward to make the headband more in line with the head.
Fixed nose bridge: Use one hand to grab the front end of the half face mask respirator, place the wide end under the chin, and fix the narrow end on the nose bridge.
Tightening strap: Tighten the strap behind the neck and pull both ends of the strap to adjust its elasticity.
Tightness test: Conduct a tightness test by placing the palms of both hands on either side and slowly inhaling. If you feel the mask slightly collapse, it indicates good tightness. Cover the exhalation valve cover with your palm and exhale slowly. If the mask is slightly bulging, it indicates good sealing. If there is a leak, adjust the mask and headgear position again until they are tightly sealed. ‌