![]() Since very few XM27s were produced, finding an example of one is highly unlikely. Full-scale production of the XM28 began in 1968. Throughout a two year period the XM28 was upgraded 4 times (hence the E4 designation). ![]() The XM27 was discarded because of its extra weight. XM26 (Helicopter Crew Version) from Johannes' collection īoth masks were developed in 1966, by Edgewood Arsenal when the 1st Cavalry and 1st Infantry Division requested a compact, lightweight protective mask. The M17 was carried on the leg of the wearer, which meant there was a higher risk of exposing the mask and carrier bag to water when wading through bodies of water, and due to the mask's weight, the carrier bag would often slip down the side of the leg, resulting in filter damage from the exposure to water. The XM27 weighed 1.1kg (2.5 pounds) while the XM28 weighed a far lower – 0.39kg (14 ounces).ĭue to its improved flexibility, the XM27 could be packed into a small water proof bag, instead of the larger canvas carrier bag the M17 used. ![]() It was also far lighter, a factor which proved beneficial to the troops in Vietnam. As filters age the risk of inhaling dangerous fibres increases even if the mask and filter look pristine, as you have no idea how the filter has been handled before it has come to you.Due to the M17's excessive weight, the XM27 was essentially an M17 made out of transparent silicone instead of rubber(Xm27a2 was made of grey rubber, similar to that seen on ww2 US masks), and so was far more foldable than the original M17. Hearing that someone on this forum “regularly” breathes through filters from ww2, nearly all of which contain asbestos, makes me horrified to say the least! I have been collecting ww2 gas masks from all countries for years, having over 45 rare pieces in the collection now and never once dared to breathe through any of them. The ww2 British mark 4 and 5 are the worst, containing blue asbestos which takes up at least half the large box type filter. The older the gas mask the worse it is! Please research filters before use! With chromium though I wouldn’t know enough about it to advise anyone on it. I wouldn’t trust any filter known to contain asbestos despite what other users say, it’s just not worth the risk to something so significant as your health. Just some friendly advise and concern for your health. What botswovo said scares me and I’m sure down the line he may find issues with his respiratory system as he says he uses ww2 filters regularly but that’s up to him. Your mask you mentioned should be fine to use but please never wear masks from ww2 era or even soviet Cold War masks from the 80s You can find more information online, even the imperial war Museum said never to use any masks known to contain asbestos. If you were to wear the mask a hand full of times it shouldn’t be a problem but I really can’t understand why anyone would want to put this risk on themselves. I’ve done my research on old ww2 masks and in Britain our old gas masks contain blue asbestos (a Class 1 carcinogenic), over time asbestos particles break down and breach the particulate layer leaving chance of inhalation. This is because at some point in their life potentially they could have been damaged causing trauma to the inside of the mask creating breaches where even charcoal can get through leading to you breathing it in. Personally I would extremely advise you not to wear any of these old filters even if there is no asbestos present. Just to shed some light on using ww2 filters. Hi mate, I was reading the comment from Botstowo.
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