IV, the Mk. IV General Service Respirator, is an Interwar, Second World War and Early Post-War Respirator which has seen use in many different forms all over the world. Starting its life in …

The Mk IV. General Service Respirator was the standard issue gas mask for the Australian Army prior to and going into the Second World War,being the successor to the Mk.III GSR. The face …

根据咱国的国家标准GB18871的有关规定，实践对公众关键人群组成员产生的年平均有效剂量不得超过1mSv（1000μSv）；特殊情况下，如果5个连续年的年平均剂量不超过1mSv， 则某单一 …

2023年1月16日 · There are many possibilities with this technique, for examle Dräger liked to do all of these steps at onece in one machine. But it is possible to do it separately. I haven't looked …

The Mk IV General Service Respirator is featured in the video game Battlefield 1. It is carried by the US, British, Italian and French soldiers and oddly is the first person model of the M17 gas …

2022年7月31日 · This design served Great Britain throughout the war alongside its successor, the Mk. V. Versions of the Mk. IV and V continued service into the 1950s, both with the military …

MKIV GSR with MKVI Filter dated 1938 and a MKV bag. A nice example of an early war gas mask that could easliy have ben used by the BEF in France 1940 with a rare MKV bag and contents. …

2022年4月13日 · Hi. The best would be to find another GSR that has poor rubber but with good lenses and do a swap. Look for one going cheap. First of with care try to remove the outer …

The British Mk IV Service Respirator was made of tan fabricized rubber, with round glass eyepieces and a central speech diaphragm. It had a long corrugated hose leading to a large …

The Mk.V GSR was similar in many ways to the Mk.IV GSR, with most obvious distinguished between the the two masks being the lack of stockinette on the Mk.V as appose to the Mk.IV.