Original AVON Gas Mask FM12. The FM12 NBC Respirator is a military gas mask produced by Avon Rubber and in service with the British Armed Forces and various police forces. The FM12 was introduced in 2000 as an intended replacement for the standard issue S10 NBC Respirator. In service from the 1980s. The voice emitter and exhale valve cover is smaller than that of the S10, so are the lenses. The FM12 has an overall lower profile than the S10 and sits closer to the wearer’s face. The FM12’s drinking tube is also longer than that of the S10, making drinking easier while wearing the mask. The FM12 also has an inner mask to prevent fogging of the lenses. The’ridge’ present around the edge of the S10 is absent from the FM12. The main noticeable difference between the FM12 and the S10 is the ability of. FM12’s to mount. To the mask simultaneously. When only one filter is fitted to a mask that has the ability to accept two, a blanking plug is used. The harness of the FM12 consists of elastic strips, which connect to a mesh fabric piece on the back of the wearer’s head. This change from the rubber straps of the S10 was designed to enable the mask to be worn for longer periods of time without discomfort, and also to hold the mask tighter to the face for a better seal. Use at your own responsibility. Producer: AVON Rubber, UK. Condition: issued, with in very good condition, may contain long-term warehousing marks. SIZES AVAILABLE: 1 (Large), 2 (Medium), 3 (Small). The item “FM12 Respirator AVON NBC Gas Mask” is in sale since Monday, March 23, 2020. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Personal, Field Gear\Gas Masks”. The seller is “militarysurplusee” and is located in Tallinn. This item can be shipped worldwide.