Military M51 GAS MASK & RESPIRATOR w/ FILTER CANISTER New Never Used. Filter (canister) is BRAND NEW. The ANP M51 (French: Appareil Normal de Protection modèle 51 – Normal Protection Device model 51) was a French military gas mask used after the Second World War from the early 1950s to the 1990s where it was subsequently replaced by the ARF-A in France and the BEM-4GP in Belgium. This mask is fully functional and includes a BRAND NEW filter canister. P-A-2 Organic Vapors NBC for 40mm Gas Masks 40mm Canister RD40 Canister for Respiratory ProtectionP-A-2 Organic Vapors NBC for 40mm Gas Masks 40mm Canister RD40 Canister for Respiratory Protection. 3.94 x 3.54 x 3.15 inches. 4.2 out of 5 stars. #511,279 in Tools & Home Improvement See Top 100 in Tools & Home Improvement. #431 in Respirator Cartridges & Filters. Can be used for it’s intended function, or can be used as a costume piece or decoration. Please copy and paste the link below for for more information. Nor do we support, endorse, or do business with the aforementioned website. We do not support war, hate, or violence. Please do your own research and form your own opinion. All photography is original and taken under natural lighting conditions. Please see all photos for details. Feel free to message us if you have any questions.