is my gas mask safe to wear? | Survivalist Forum
Safe gas mask filter I have several army gas masks from the 80s and 90s. one of them are russian GP 5 and I also have the PMK and a GP 7. I read that they could contain asbestos in the filters for the GP 5 masks. One of the filter says this on the side 26-88-1-90 and another one says 1-92-185 and the third 186-4-92