How to use gas mask correctly

The gas mask is a kind of filter-type respiratory protection product. It is the use of a mask to form a close contact with the periphery of the human face, and the outside air is used to purify the air by relying on the adsorption, absorption, catalytic action of the adsorbent in the canister, and the filtering action of the filter layer. Provide personnel with clean air for breathing. Gas masks generally consist of face masks, canisters, airways, and anti-venom surfaces.

People working in the environment of toxic and harmful gases are also using gas masks as protection; however, the structure of civilian gas masks is generally not complicated by military use, and all indicators are not as strict as military ones. For civilian chemical protection, design more appearance to meet the needs of different groups of people.

Use of gas masks :

1. Connect the gas mask: Unscrew the can lid, connect the canister below the mask, and remove the rubber plug at the air intake hole at the bottom of the canister.

2. Check the airtightness of the full set of masks before use. The method is: connect the mask and the canister, wear a gas mask, block the air inlet of the canister by hand or rubber plug, take a deep breath, if no air enters, the mask is airtight and can be used. . Otherwise it should be repaired or replaced.

3. If you smell the faint odor of poison when wearing, you should immediately leave the toxic area.

4, commonly used several canisters of protection objects are as follows:

4.1 No. 1 canister: the color is green, the main protective integrated gas, such as hydrogen cyanide, cyanogen chloride, arsenic cyanide, phosgene, diphosgene, chloropicrin, benzene, methyl bromide, Lewis gas, two Methyl chloride and mustard gas

4.2 No. 3 canister: The color is brown, and it mainly protects organic gases such as benzene, acetone, alcohols, carbon disulfide, carbon tetrachloride, chloroform, methyl bromide, methyl chloride, nitroalkane, and chloropicrin. )

4.3 Canister No. 4: The color is gray, mainly protecting ammonia and hydrogen sulfide.

4.4 No. 5 Canister: The color is white and it is mainly protected against carbon monoxide.

4.5 No. 7 canister: The color is yellow, mainly protected against acid gases and vapors, such as sulfur dioxide, chlorine, hydrogen sulfide, nitrogen oxides, phosgene, phosphorus, and phosphorus-containing organic pesticides.

4.6 No. 8 canister: The color is blue, and the main protection is hydrogen sulfide and ammonia.

5. Screw the screw cap on the upper part of the canister after each use, and store it after plugging the rubber plug to avoid moisture inside.

6, canisters should be stored in a dry, clean, air circulation warehouse environment, prevent moisture, overheating, valid for 5 years, more than 5 years should be re-appraisal.

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