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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.
The Black Veil Respirator. The German army used chlorine as a poison gas for the first time against Allied troops at the Second Battle of Ypres on 22 April 1915. [1] As an immediate response, the British began issuing cotton wool wrapped in muslin to its troops by 3 May. [2] This was followed by the Black Veil Respirator, invented by John Scott ...
The strength of the prism is increased until the streak of the light passes through the centre of the prism, as the strength of the prism indicates the amount of deviation present. The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens , which refracts light rays so that a point source of light is seen as a ...
The design was adopted by the British Army and introduced as the "British Smoke Hood" in June 1915 and manufactured until September 1915. [10] 2.5 million masks were manufactured before being superseded. The helmet was a 50.5 cm × 48 cm (19.9 in × 18.9 in) canvas hood treated with chlorine-absorbing chemicals, fitted with a single rectangular ...
Brand Name Banquet. Recipes from brand name companies often get a bad rap. But many people learned to cook from the backs of boxes, bottles, and jars, especially in the 1950s, 60s, and 70s when ...
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 ...
Battles/wars. First World War. Awards. Order of St Michael and St George. Colonel Cluny Macpherson CMG FRCS (March 18, 1879 – November 16, 1966) was a physician and the inventor of an early gas mask. [1] After World War I he served as the president of the St. John's Clinical Society and the Newfoundland Medical Association.
Production history. Designed. 1980s. The M40 field protective mask was one of various protective masks used by the United States Armed Forces and its allies to protect from field concentrations of chemical and biological agents, along with radiological fallout particles. It is not effective in an oxygen deficient environment or against ammonia .