Step 1: Hold the mask with one hand, ensuring the nose clip is facing upward and both headbands are on the back of your hand.
Step 2: Cover your nose and mouth with the mask while using the other hand to pull up the lower headband.
Step 3: Secure the mask in place and pull the lower headband over your head to position it below your ears at the back of your neck.
Step 4: Hold the mask in place and use the other hand to pull up the upper headband.
Step 5: Position the upper headband at the upper back of your head, above your ears.
Step 6: Adjust the nose clip to fit the shape of your nose as closely as possible, and ensure the headbands are evenly tightened.
Airtightness Check Before Each Use
As shown in the illustration, gently place both hands on the mask without altering its position. Inhale deeply—the mask should slightly collapse inward. Exhale forcefully—the mask should slightly expand outward.
If you detect air leakage around the edges where the mask contacts your face, adjust the mask position, nose clip, and headbands until a secure seal is achieved.
