The filter shown below has an attachment at the bottom which contained a thin pad designed to filter out diphenylchlorarsine, an irritant (sternutator). These are often passed off as German masks, but are worth far less even though they are rarer. But soon all sides had turned to gases which maimed even soldiers wearing. There are Belgian postwar (wartime?) conversions of these German leather masks they were modified with the French ARS plate and filter. The standard-issue gas mask in 1917 - the 'small box respirator' - provided good protection against chlorine and phosgene. Make sure the filter and filter attachment plate look like the one shown below in the photos. The body of the mask was made of chrome tanned sheepskin dipped in sealing oil to waterproof it. The main filtering agents used in the 11-C-11 model were activated charcoal and potassium carbonate. The filter should be ink stamped with this marking along with batch, date and sometimes maker marks. 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. In late 1916, the respirator was introduced by the British with the purpose to provide reliable protection against chlorine and phosgene gas. 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. There is no asbestos to be found in any WW1 German gas masks.Īs the type of mask you're getting is the leather variant, which replaced the earlier rubberized cloth mask in June 1917, the filter is likely the 11-C-11 version introduced in May 1917. A British soldier wearing the Small Box Respirator during World War I The small box respirator was the initial compact version of the recent gas mask.
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