What's the use of gas masks?
You said that velvet mask is the head, with 5% experience plus, nothing else, not antivirus!! Antivirus ah, Pro is not the latest version of the challenge diagram inside, and some anti-virus strange
Filter toxic gas around, prevent harmful gases into the human body, protect the human respiratory tract.
A mask worn on the head, the protection of human respiratory organs, eyes and face, prevent the personal protective equipment of gas, dust, bacteria and other toxic substances damage. Gas masks are widely used in the fields of petroleum, chemical, mining, metallurgy, military, fire protection, emergency rescue and disaster relief, health and epidemic prevention and environmental protection technology.
