What are Gas Masks?

Gas mask is a personal special labor protection product and also a personal protective equipment. It is worn on the head to protect people's respiratory organs, eyes and face, and prevent toxic substances such as poisonous gas, dust, bacteria, toxic and harmful gases or steam. Personal protective equipment. Gas masks are widely used in petroleum, chemical, mining, metallurgy, military, firefighting, rescue and disaster relief, health and epidemic prevention, science and technology, environmental protection, machinery manufacturing and other fields. Respiratory protection. Gas masks can be divided into full-faced and semi-masked, and full-faced can be divided into positive pressure and negative pressure.

Gas masks are personal protective equipment to protect personnel's respiratory organs, eyes and face from poisonous and harmful substances such as poisons, biological warfare agents, bacterial weapons and radioactive dust. As a core component of a gas mask, a canister is a gas filter, and the filter material filled in the canister directly affects the protective performance of the mask. Since the emergence of gas masks in World War I, countries around the world have begun the development of gas masks, and various gas masks have come out one after another. With the rapid development of science and technology, gas masks have made a qualitative leap in gas defense capabilities and comfort. The application fields of gas masks have also expanded from the initial military protection to industrial protection, labor protection and emergency rescue. With the continuous improvement of people's living standards, the awareness of self-protection is increasing ^[1]

Gas mask as

According to the protection principle, it can be divided into

1. You should choose the correct gas mask, choose the right model, and confirm which type of poison gas is. What is the concentration of poison in the air at the scene, what is the oxygen content in the air, and how much is the temperature. Special attention should be paid to the scope and time specified by the canister of the protective mask. When the oxygen concentration is below 19%, the use of negative pressure gas masks is prohibited;

2. Before using the gas mask, it should be carefully checked to see if the parts are complete and if there are any abnormalities, and whether the connected parts are connected properly. Take a closer look to see if the airtightness of the entire mask is special. Good.

3. For workers who need to use gas masks in their work, we need to provide them with special training so that they can properly use gas masks. When using gas masks, we should choose a more suitable one.

(1) If there is a hole in the mask on the gas mask or the air tube, you can pinch the hole with your fingers, and if the trachea on your gas mask appears to be damaged, you can place the canister It can be directly connected with the hood. In any of the above cases, you must evacuate the work area in time and replace the anti-virus equipment in a safe area in a timely manner;

(2) If the exhalation valve on the gas mask is broken, you should use your fingers to block the hole of the exhalation valve. When you exhale, loosen your hand and block it with your hand when you inhale. The above methods will seriously threaten your health and life safety. It is recommended to leave the work area in time and replace the equipment in a safe area;

(3) If the hood on the gas mask is severely damaged, you can consider placing the canister directly in your mouth, then pinching your nose, and breathing with the canister. At the same time, the site must be evacuated as soon as possible;

(4) If a small hole appears on the gas filter canister on the gas mask, you can use your hand or other materials to block it. And evacuate in a timely manner;

(5) If a gas mask appears

Test method 1: Cover the exhalation valve with your palm and exhale slowly. If you feel a certain pressure on your face, but do nt feel any air leaking between your face and mask, it means that you are wearing a good fit. If there is leakage, you need to readjust the headband and mask to eliminate air leakage.
Test method 2: Cover the connection port of the cartridge holder with your palm and inhale slowly. If you feel difficulty breathing, it means that wearing a mask is tight. If you feel you can breathe in 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 1, method 2 to do the adhesion test until the adhesion performance is good.