Respirator

device designed to protect the wearer from inhaling harmful dusts, fumes, vapors, or gases
An air-purifying mask is worn to protect the wearer from dust and paint fumes.

A respirator is a kind of mask that is used to protect someone from breathing in dusts, fumes, or gases that might hurt them. Respirators come in many types and sizes. They are used by the military and industrial workers.

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