Equipment that protects a person from harmful air and chemical hazards, from filter respirators and sealed face masks that clean the air a wearer breathes to protective suits and breathing apparatus for fire fighters, miners and soldiers. An invention belongs here when the cited article describes it as a device that filters, supplies or seals out air so a person can work in a hazardous atmosphere. Chemical agents and explosives themselves belong in their own groups of the field, and underwater breathing apparatus belongs with marine engineering.
Respiratory Protection and Chemical Defence Equipment
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Gas mask (Wikipedia)
Has Member: Gas Mask, IntroQuote, Has Member: Gas Mask, Intro
A gas mask is a piece of personal protective equipment used to protect the wearer from inhaling airborne pollutants and toxic gases.
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