Hypo Helmet. Aka Smoke Hood. First used by the British Empire in June 1915. Dr. Cluny MacPherson, a soldier serving in the Royal Newfoundland Regiment... | By The Dayton Doughboy | Facebook
![World War I Respirators and Equipment - British Military Respirators and Anti-Gas Equipment of the Two World Wars World War I Respirators and Equipment - British Military Respirators and Anti-Gas Equipment of the Two World Wars](https://erenow.org/ww/british-military-respirators-anti-gas-equipment-two-world-wars/british-military-respirators-anti-gas-equipment-two-world-wars.files/image021.jpg)
World War I Respirators and Equipment - British Military Respirators and Anti-Gas Equipment of the Two World Wars
![Wars on X: "Indian soldiers of the 58th Vaughan's Rifles (Frontier Force) in a trench in Fauquissart, France wearing gas masks in anticipation of a gas attack. Photograph taken by H. D. Wars on X: "Indian soldiers of the 58th Vaughan's Rifles (Frontier Force) in a trench in Fauquissart, France wearing gas masks in anticipation of a gas attack. Photograph taken by H. D.](https://pbs.twimg.com/media/F8gpQ9LWwAAswPe.jpg)