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Gas Mask

August 12, 2023August 12, 2023 tpjwf6ktzf

gas mask, breathing device designed to protect the wearer against harmful substances in the air. The typical gas mask consists of a tight-fitting facepiece that contains filters, an exhalation valve, and transparent eyepieces. It is held to the face by

Gas Mask

June 8, 2023June 8, 2023 tpjwf6ktzf

For the mask used to inhale the gas through, see Mask § Functional masks. For peacetime uses, including masks designed to filter gasses and particles, see stylometric respirator.A World War I British P Helmet Lewinsky–Grumman prerogative, designed in 1915, was