As personal protective equipment, gas mask is used to provide effective protection for respiratory organs, eyes and facial skin. The mask is an important part of the gas mask, which can isolate the face from the outside air. The gas mask is composed of a mask, a gas duct and a gas filter tank. The mask can be directly connected with the gas filter tank, or the gas guide pipe can be connected with the gas filter tank for use.

Gas masks are personal protective equipment to protect respiratory organs, eyes and faces from toxic and harmful substances such as toxic agents, biological warfare agents, bacterial weapons and radioactive dust. As the core part of the gas mask, the filter material inside the canister directly affects the protective performance of the mask. Since the emergence of gas masks in the first World War, countries around the world have carried out the research and development of gas masks, and various kinds of gas masks have come out one after another.

Source: @tradethissleep