Instructions for use of gas masks

When a fire occurs, wearing a reliable smoke and gas respirator and using evacuation channels to safely escape from danger can greatly reduce the number of fire deaths. The gas mask's gas proof time is about 30 minutes. When not in use, the mask and air duct should be regularly checked to ensure that the appearance is intact and not damaged. No air enters, otherwise it should be repaired or replaced.
The materials and structures of various gas masks are different, but all can refer to the same method of use.
1. Check before using gas mask :
1. Check the mask for cracks and tears before use to ensure that the mask fits the face tightly; 2. Check the exhalation valve for deformation, cracks, and cracks; 3. Check whether the headband is elastic; 4. Check whether the sealing ring of the filter box is intact; 5. Check whether the filter box is in use
2. Instructions for wearing gas masks :
1. Cover the mouth and nose with the mask, and then pull the headband frame to the top of the head; 2. Use both hands to pull the headband to the back of the neck, and then buckle; 3. For the air-dried mask, please carefully check the connection part and exhale The tightness of the valve and the suction valve, and put the mask in a clean place for the next use; 4. Please do not use organic solvent cleaning agent for cleaning, otherwise it will reduce the use effect.
Three, gas mask wearing adhesion test :
Test Method 1: Cover the exhalation valve with your palm and exhale slowly. If you feel a certain pressure on your face, but do not feel any air leaking between the face and the mask, it means that the wearing is good. If it is between the face and the mask If there is a leak, you need to readjust the headband and mask to eliminate the leak. Test method two: Cover the connection port of the filter cartridge holder with the palm of your hand, and slowly inhale. If you feel difficulty in breathing, it means that the mask is well sealed. If you feel you can inhale air, you need to readjust the position of the mask and adjust the tightness of the headband to eliminate air leakage. Redo according to the above method one, method two do adhesion test, until the adhesion performance is good.
4. Replacement and assembling method of poison filter box :
1. Replace according to the effective anti-virus time of the filter cartridge or replace it with an odor; 2. Remove the sealing layer of the filter cartridge, align the screw hole of the filter cartridge with the filter cartridge holder, tighten it in the clockwise direction, and press the filter cartridge Align and compress the box seat.
5. Conditions for replacing gas masks :
1. If you smell a weak odor of toxic gas when wearing, you should leave the toxic area immediately. 2. Where the oxygen in the toxic area occupies less than 18% of the volume and the toxic gas accounts for more than 2% of the total volume, all types of canisters can not play a protective role.
6. Other aspects :
1. After each use, the screw cap on the upper part of the canister should be screwed on, and the rubber plug should be plugged and stored to avoid moisture inside. 2. The canister should be stored in a dry, clean, air-circulated warehouse environment, protected from humidity and overheating, with a validity period of 5 years, and more than 5 years should be re-identified.

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