![Hello, I just bought this Belgian wiper gas mask from American Science And Surplus and I am wondering what kind of filter I can use. On the (what I think is expired) Hello, I just bought this Belgian wiper gas mask from American Science And Surplus and I am wondering what kind of filter I can use. On the (what I think is expired)](https://preview.redd.it/fcjwc8vdbcm41.jpg?auto=webp&s=ce71b9bb61b29724f3eb3f00217be1997d2fbbf1)
Hello, I just bought this Belgian wiper gas mask from American Science And Surplus and I am wondering what kind of filter I can use. On the (what I think is expired)
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BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear
![BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear](https://cdn11.bigcommerce.com/s-jkwzatsr05/images/stencil/1280x1280/products/294/1653/285071427053-6__22666.1671116397.jpg?c=2)
BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear
![BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear](https://cdn11.bigcommerce.com/s-jkwzatsr05/images/stencil/1280x1280/products/294/1649/285071427053-2__05024.1671116394.jpg?c=2)
BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear
![BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear](https://cdn11.bigcommerce.com/s-jkwzatsr05/images/stencil/1280x1280/products/294/1647/285071427053-0__21626.1671116392.jpg?c=2)
BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear
![GAS MASK M51 FILTER - MILITARY SURPLUS FROM THE BELGIAN ARMY - LIKE NEW (SALE ONLY IN EU) | Military Surplus \ Used Equipment \ Protective Masks militarysurplus.eu | Army Navy Surplus - GAS MASK M51 FILTER - MILITARY SURPLUS FROM THE BELGIAN ARMY - LIKE NEW (SALE ONLY IN EU) | Military Surplus \ Used Equipment \ Protective Masks militarysurplus.eu | Army Navy Surplus -](https://www.militarysurplus.eu/eng_pl_GAS-MASK-M51-FILTER-MILITARY-SURPLUS-FROM-THE-BELGIAN-ARMY-LIKE-NEW-SALE-ONLY-IN-EU-49713_1.jpg)
GAS MASK M51 FILTER - MILITARY SURPLUS FROM THE BELGIAN ARMY - LIKE NEW (SALE ONLY IN EU) | Military Surplus \ Used Equipment \ Protective Masks militarysurplus.eu | Army Navy Surplus -
![BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear](https://cdn11.bigcommerce.com/s-jkwzatsr05/images/stencil/1280x1280/products/294/1648/285071427053-1__24903.1671116393.jpg?c=2)
BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear
![BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear BELGIAN ARMY SURPLUS MILITARY GAS MASK AMBIDEXTROUS 40mm NATO FILTER RESPIRATOR - Centex Tactical Gear](https://cdn11.bigcommerce.com/s-jkwzatsr05/images/stencil/1280x1280/products/294/1654/285071427053-7__26194.1671116397.jpg?c=2)