![Sold at Auction: A WW2 Gas Mask MK4 with Hose and Filter. Government war markings and No. 4 on mask buckle. Markings on hose for July 1940. Markings on filter for 24/12/41. Sold at Auction: A WW2 Gas Mask MK4 with Hose and Filter. Government war markings and No. 4 on mask buckle. Markings on hose for July 1940. Markings on filter for 24/12/41.](https://image.invaluable.com/housePhotos/cadmoreclassiccars/91/748691/H22264-L333396492.jpg)
Sold at Auction: A WW2 Gas Mask MK4 with Hose and Filter. Government war markings and No. 4 on mask buckle. Markings on hose for July 1940. Markings on filter for 24/12/41.
![Attention all members of the community who want to cosplay. Please read the following article on the dangers of WWII Filters. : r/metro Attention all members of the community who want to cosplay. Please read the following article on the dangers of WWII Filters. : r/metro](https://preview.redd.it/muhe6t4slve21.png?auto=webp&s=b29f7957935e7fc55c7356664b0dd6b0ff4054c7)
Attention all members of the community who want to cosplay. Please read the following article on the dangers of WWII Filters. : r/metro
![Japanese WW2 Type 99 Gas Mask, 1943 Issue, with Pouch | Rare Collectible Guns, Antiques, Collector Firearms, Used Guns Japanese WW2 Type 99 Gas Mask, 1943 Issue, with Pouch | Rare Collectible Guns, Antiques, Collector Firearms, Used Guns](http://www.ponyexpressfirearms.com/wp-content/uploads/2016/02/japanese_WW2_gas_mask_1943_issue_with_pouch.jpg)
Japanese WW2 Type 99 Gas Mask, 1943 Issue, with Pouch | Rare Collectible Guns, Antiques, Collector Firearms, Used Guns
![Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 194 – International Military Antiques Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 194 – International Military Antiques](https://www.ima-usa.com/cdn/shop/products/ONSV9269__02.jpg?v=1615615525)
Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 194 – International Military Antiques
![Relics and Militaria – Eastern Front Romania WW1 & WW2 » What is inside a Romanian 39B ww2 Gas mask filter Relics and Militaria – Eastern Front Romania WW1 & WW2 » What is inside a Romanian 39B ww2 Gas mask filter](http://relicsandmilitaria.ro/wp-content/uploads/2020/04/01-Romanian-ww2-Gas-masks.jpg)