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  2. M50 Joint Service General Purpose Mask - Wikipedia

    en.wikipedia.org/wiki/M50_joint_service_general...

    It is an above-the-neck, chemical-biological (CB) respirator that protects against battlefield concentrations of CB agents, toxins, toxic industrial materials, and radioactive particulate matter. The M50/51 masks replace the M40 field protective mask and M42 , the MCU-2/P series masks, and the M45 of the Land Warrior Program .

  3. Gas mask - Wikipedia

    en.wikipedia.org/wiki/Gas_mask

    A World War I British P Helmet, c. 1915 Zelinsky–Kummant protivogaz, designed in 1915, was one of the first modern-type full-head protection gas masks with a detachable filter and eyelet glasses, shown here worn by U.S. Army soldier (USAWC photo) Indian muleteers and mule wearing gas masks, France, February 21, 1940 A Polish SzM-41M KF gas mask, used from the 1950s through to the 1980s

  4. GP-5 gas mask - Wikipedia

    en.wikipedia.org/wiki/GP-5_gas_mask

    The GP-5 gas mask kit (Russian: Гражда́нский Противога́з-5, romanized: Grazhdanskiy Protivogaz-5) is a Soviet-made gas mask kit, which contains a single-filter ShM-62 or Shm-62U gas mask. It was issued to the Soviet population starting in 1962 during the Cold War.

  5. M40 field protective mask - Wikipedia

    en.wikipedia.org/wiki/M40_Field_Protective_Mask

    The M40 field protective mask was one of various protective masks used by the United States Armed Forces and its allies to protect from field concentrations of chemical and biological agents, along with radiological fallout particles.

  6. Nitrile rubber - Wikipedia

    en.wikipedia.org/wiki/Nitrile_rubber

    Nitrile rubber was developed in 1931 at BASF and Bayer, then part of chemical conglomerate IG Farben. The first commercial production began in Germany in 1935. [2] [3] IG Farben plant under construction approximately 10 kilometres (6.2 mi) from Auschwitz, 1942. The Buna-Werke was a slave labor factory located near Auschwitz and

  7. FM12 NBC Respirator - Wikipedia

    en.wikipedia.org/wiki/FM12_NBC_Respirator

    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.