Gas masks, Imperial War Museum, London
On the left a head tube designed by the Royal Army Medical College to protect against phosgene gas. The gas was almost undetectable, apart from an odour of damp hay, but was ten times more lethal than chlorine gas. On the right is a standard issue gas mask of 1917-18. The small metal box contained charcoal particles that filtered out practically all lethal gas types Similar gas masks were issued during the Second World War. I used one of the canvas packs of one these as my college bag from 1975-79, which I bought secondhand on Doncaster market.
Gas masks, Imperial War Museum, London
On the left a head tube designed by the Royal Army Medical College to protect against phosgene gas. The gas was almost undetectable, apart from an odour of damp hay, but was ten times more lethal than chlorine gas. On the right is a standard issue gas mask of 1917-18. The small metal box contained charcoal particles that filtered out practically all lethal gas types Similar gas masks were issued during the Second World War. I used one of the canvas packs of one these as my college bag from 1975-79, which I bought secondhand on Doncaster market.