Correct use of respiratory protective equipment

In the environment of dust, toxic pollution or lack of oxygen, in order to prevent harmful gases, dust, smoke, mist, harmful vapors and other components from inhaling through the respiratory tract, oxygen is supplied to the user or clean air is usually provided through the respiratory protective equipment to ensure the operation. Normal protective equipment for personnel breathing. The safety protection expert will introduce you to the following: General knowledge about the use of respiratory protective equipment.

Respiratory protective equipment mainly includes two types of dust masks and gas masks.

Common use of dust masks:

Before use, dust masks must be inspected for completeness and must be promptly rectified or replaced if damaged. In addition, attention should be paid to checking the airtightness of each joint, especially the air mask or mask, to see if the joints and the pipeline are unblocked.

In addition to dust in the workplace, but also accompanied by toxic fog, smoke, gas or oxygen content in the air less than 18%, should use isolated dust-proof appliances, prohibited the use of filter-type dust-proof appliances.

For dusting and wet work places, the dust-proof tools used should have waterproof devices.

For labor-intensive operations, dust-proof appliances with low suction resistance should be used. When conditions are available, try to use air masks or masks.

Dust masks should be worn correctly, and the tie and headband should be properly adjusted. There should be no severe pressure on the face.

Dust-proof appliances should be used exclusively by professionals. After use, plastic bags should be avoided from being squeezed or damaged.

Gas mask use knowledge:

Gas masks can be classified into two types: filter type and isolation type.

Filter-type anti-virus appliances use toxic canisters to filter out toxic gases in the air before they can breathe. Therefore, the air in the working environment cannot be used when its oxygen content is less than 18%. Filter-type gas masks and masks cannot be used for major accidents, complicated on-site conditions, and operations with more than two poisons.

Isolated anti-virus appliances mainly rely on gas pipelines to send non-polluting air or oxygen into closed anti-virus appliances for the breathing of operators. Isolated anti-virus appliances are used in polluted environments where oxygen deficiency, toxic gas composition is unknown or the concentration is high.

Safety experts advise that when using gas masks, it is forbidden to unscrew the canister lid to avoid violent shaking of the canister, so as to avoid loosening of the medicament; at the same time, water and other liquids should be prevented from splashing on the canister, otherwise the effectiveness of the anti-virus can be reduced. .

If the use of gas masks during the process, if it is found that the anti-virus agent fails, it should immediately leave toxic sites, and stop using gas masks, replace the drug before using it.

For the use of gas masks, must be promptly cleaned, disinfected, washed and dried, do not fire, exposure, to prevent material aging. After the gas mask canisters are used, the top and bottom plugs should be covered and plugged respectively to prevent the filter poisons from becoming wet. For failed canisters, they should be scrapped or replaced with new ones in time for regeneration.

Security experts warn that, for gas masks that are not in use at one time, talcum powder should be evenly spread on rubber parts to prevent adhesion. On-site spare masks should be placed in dedicated cabinets and regularly maintained and protected against moisture.