Hypo helmet

A Hypo helmet is a flannel bag, with eye-pieces of mica soaked in some anti-gas solution, one of the first used being a hypo (sodium thyosulphate) solution. The hypo helmet superseded the cotton-pad respirator. The first one was made on May 10th, 1915, and is preserved at the Imperial War Museum.[1]

See also PH helmet.

References / notes

  1. Edward Fraser and John Gibbons (1925). Soldier and Sailor Words and Phrases. Routledge, London p.125.

Glossary of words and phrases

The above term is listed in our glossary of words and phrases of the Armed Forces of Great Britain during the Great War. Included are trench slang, service terms, expressions in everyday use, nicknames, the titles and origins of British and Commonwealth Regiments, and warfare in general. These words and phrases are contemporary to the war, which is reflected in the language used. They have been transcribed from three primary sources (see Contents). Feel free to expand upon and improve this content.
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