e/PH helmet

Information
has gloss	eng: The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with chemicals.
lexicalization	eng: Ph helmet
instance of	e/Mask

Media
media:img	Gas Mask 1915 RCR Museum.JPG
media:img	Vickers machine gun crew with gas masks.jpg