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
![This day in WWI on X: "British soldier wearing a PH Helmet. The PH Helmet was first introduced in July 1915, and became the standard in October 1915 when it replaced the This day in WWI on X: "British soldier wearing a PH Helmet. The PH Helmet was first introduced in July 1915, and became the standard in October 1915 when it replaced the](https://pbs.twimg.com/media/EpBBiBBVEAIqSNw.jpg:large)
This day in WWI on X: "British soldier wearing a PH Helmet. The PH Helmet was first introduced in July 1915, and became the standard in October 1915 when it replaced the
![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)