Gas mask before use check:

1. Before use, check whether the mask has cracks or breaks to ensure that the mask and the face fit tightly.

2. Check whether the exhalation valve is deformed, broken or cracked.

3, check whether the headband is flexible;

4, check the filter cartridge seat ring is intact;

5. Check whether the filter box is in use
Gas mask wear instructions:

1. Cover the mouth and nose with the mask, then pull the headband over the head;

2, with both hands to pull the headband below the neck, and then buckle;

3, dried mask Please carefully check the connection and exhalation valve, suction valve adhesion, and put the mask in a clean place for the next use;

4. Do not use organic solution cleaning agent for cleaning when cleaning, otherwise it will reduce the use effect.

Gas mask wear adhesion test:

Test method one:

Cover your exhalation valve with your palm and exhale slowly. If you feel pressure on your face, but you do not feel any air leakage from your face or mask, it means good fit; if there is a leak between your face and mask, Need to re-adjust the headband and mask to eliminate air leakage.

Test method two:

Cover the connector of the cartridge holder with your palm and slowly inhale. If you feel difficulty breathing, it means that the mask is well sealed. If you feel that you can inhale air, you need to re-adjust the position of the mask and adjust the tightness of the headband to eliminate air leakage.

Redo the method according to the above one, method two to do the adhesion test until the adhesion performance is good. Xian. Philosophy?

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