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A gas mask is an item of personal protective equipment used to protect the wearer from inhaling airborne pollutants and toxic gases. The mask forms a sealed cover over the nose and mouth, but may also cover the eyes and other vulnerable soft tissues of the face. Most gas masks are also respirators, though the word gas mask is often used to ...
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Gas_mask_for_work,_Japan.jpg (214 × 339 pixels, file size: 22 KB, MIME type: image/jpeg) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Chemical weapons in World War I. A French gas attack on German trenches in Flanders, Belgium (1917). The use of toxic chemicals as weapons dates back thousands of years, but the first large-scale use of chemical weapons was during World War I. [1] [2] They were primarily used to demoralize, injure, and kill entrenched defenders, against whom ...
Original file (5,303 × 3,963 pixels, file size: 5.3 MB, MIME type: image/jpeg) ... ''Issue of Gas Masks To British Civilians, 1940''<br/> Air Raid Precautions ...
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The Zelinsky-Kummant gas mask is the world's first gas mask [1] with the ability to absorb a wide range of chemical warfare agents. The gas mask was developed in 1915 by Russian chemist Nikolay Zelinsky and technologist of the Triangle plant M.I. Kummant. [2] The design was later improved by I. D. Avalov and entered mass production.