![]() In Finland, the issue of asbestos in gas masks first arose in public in 2017 when the Varusteleka Oy company, among others, had to stop selling filter cartridges for the Soviet GP-5 and PDF-2 gas masks and ask customers to return any cartridges they had bought. Six soldiers demonstrating the use of a gas mask during the First World War. The HSE decided that old untested gas masks should not be handled or worn as teaching aids in schools because visually distinguishing between hazardous and safe filters is difficult or impossible. The results showed that the filters of 29 gas masks contained asbestos, and six filters included blue asbestos, considered the most hazardous for health. In 2014 the UK Health and Safety Executive (HSE) investigated 34 old British and German gas masks. Possible risks were not properly addressed until the 2000s. No research-based information is evidently available on the asbestos exposure of contemporary gas mask wearers or current gas mask owners and wearers. Photo: Guarding against the danger of gas. Breathe calmly!” Breathing through a gas mask was hard, which is why it was recommended that people get gradually used to it through various drills. Those exposed to asbestos at work have suffered from, for example, lung cancer, to a far greater degree than other members of the population. However, the focus has been on the workers of factories producing gas masks during the Second World War whose health and causes of death were analysed in the 1970s and 1980s in Britain and Canada, for instance. The connection between the filter cartridges of old gas masks and asbestos has long been known around the world. In this blog post, we explain how we investigated the matter and what we eventually found out. In spring 2020 we decided to find out whether these suspicions were true. However, we had to scrap these plans at the last minute when we discovered that the filters of old gas masks may contain asbestos. In 2015 we made plans to place one of the civilian gas masks on display in the University Museum’s new main exhibition, The Power of Thought. The collections also include an equine gas mask dating back to the 1930s or 1940s which is of an unknown origin. The University Museum has received the masks from hospitals and University of Helsinki departments. The collections of the Helsinki University Museum include eight gas masks, of which seven are from the 1930s and intended for the civilian population. The gas mask originally belonged to the University of Helsinki Department of Pharmacology. ![]() Not much is known about its hood other than the fact that it was issued only for special units of the Chinese PLA.A civil defence gas mask from the late 1930s included in the collections of the Helsinki University Museum. Although the principle of the hydration cap on the mask is similar to the Israeli ones, their threads do not match, meaning that the drinking system of this mask and the Israeli ones are incompatible with each other. Its hydration straw directly connect to the bottle and the hydration cap of the mask. The drinking system is similar to the MF15B. Some other variants have a drinking tube system on the side of the right cheek. Other accessories include a waterproof bag, instructions, and a training cap for the filter input. It also comes with the carrying bag with a Type 87 woodland camouflage fabric. The military variant of this mask comes in a green plastic box that the mask and filter fit in. The military version would be made by Shanxi Xinhua while the civilian version would be made by Tangshan Puda. The mask uses a 6-point head harness that is either made with an elastic (military version) or rubber strap (civilian version). Other variants of this mask feature eye lenses that are similar to the Avon FM-12 gas mask. The mask features rounded triangular eye lenses. ![]() The filter that comes with the mask, designated the Z-B-R2-V filter, provides protection against CBRN threats. The mask itself is made out of a black rubber. It is available in 3 sizes 1 (Small), 2 (Medium), and 3 (Large). The version without the drinking tube is called MF-11B. Currently used by the Chinese People's Liberation Army in small numbers, as wel as for use amongst civilians working in areas such as industry, agriculture, scientific research, public safety and transportation safety. MF-11 made by Tangshan Puda is also known as MJ-4003. The MF-11 (not to be confused with MF-11D), also known as FMJ05 is China's current standard-issue protective mask. Civilian version:Tangshan Puda Protective Products Factory
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