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 The hypo helmet superseded the cotton-pad respirator.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.
See also PH helmet.
References / notes
- Edward Fraser and John Gibbons (1925). Soldier and Sailor Words and Phrases. Routledge, London p.125.
Glossary of terms and customs
This page forms part of our glossary of words and phrases of the Armed Forces of the United Kingdom of Great Britain during the Great War, which also includes: technicalities, trench slang, expressions in everyday use, nicknames, sobriquets, the titles and origins of British and Commonwealth Regiments, and warfare in general. Please feel free to help expand and improve this content.
Browse other terms: Contents – A B C D E F G H I J K L M N O P Q R S T U V W X Y Z