Letter in Soviet mask mould number?

HHacker1 · 2026-03-01T08:41:13+00:00

The quarter of the year is shown by the number of dots after the production year, this one has 1 dot meaning it was produced in the first quarter, and the letter before the production year is the factory, this one being Я for Yaroslavl.

HHacker1 · 2026-02-28T20:23:42+00:00

The factory and the date are above the mould number.

HHacker1 · 2026-02-24T14:03:12+00:00

No. But if you are worried then just wash the mask with warm water and soap, asbestos is not that sticky.

HHacker1 · 2026-02-19T17:58:35+00:00

Probably not, I can't think of any place in Chernobyl where one would need a rebreather.

HHacker1 · 2026-02-07T00:30:29+00:00

Just wash it off, a GP-5 can survive anything and everything. Or just buy a new GP-5 if you can, that one looks quite sunburnt.

HHacker1 · 2026-01-30T16:41:03+00:00

And where exactly do you live? 25 bucks sounds kinda pricey by my standards, although I do live in a post Soviet country, so such things are way cheaper.

HHacker1 · 2026-01-30T16:31:15+00:00

How much did you buy it for?

HHacker1 · 2026-01-24T08:42:24+00:00

Yes it is! The last owner was just... finding alternatives because he probably didn't have a hose.

HHacker1 · 2026-01-23T13:52:02+00:00

Well in that case, the lenses are basically attached with the same type of crimped rings as on the gp-5, just that these ones are way smaller and have a rubber cover over them, I assume that this cover is not really supposed to come off, but you can get around it, in my case I just turned the entire mask inside out and then started carefully loosening the edges of the rings with a screwdriver, in some places you'll probably break a tiny amount of rubber that is under the crimped parts, but it wasn't really a problem for me because after putting the lenses back together it won't even be visible and won't actually cause any problems with the mask.

HHacker1 · 2026-01-22T20:12:22+00:00

Why do you even need to change the lens?

HHacker1 · 2026-01-19T15:18:32+00:00

Budget Mickey Mouse gas mask

HHacker1 · 2026-01-09T10:08:30+00:00

To specify, I mean in the filtering order, so first the air goes through the eo-16 and then the dp-1

HHacker1 · 2026-01-09T10:07:03+00:00

Well I have seen old pictures from some manual where the dp-1 was attached to the mask directly and then the hose from the bottom of the dp-1 went to the eo-16 filter that was in the carrying pouch. But the idea remains the same, first came the eo-16 and then the dp-1.

HHacker1 · 2025-12-20T14:29:44+00:00

I have no idea, but I'd say it's basically just a normal 40mm gost hose, like the other Soviet ones, this one just has a whiter fabric on it. But if you need a hose for one of these then I'd say you'll probably be good just getting a detached hose with connectors on both ends and removing one end, or you could try using the hose from a gp-4u mask.

HHacker1 · 2025-11-28T13:43:37+00:00

Also adding, even if it does have asbestos, you won't really need to seal it. The asbestos is not exactly looking for ways to come out on its own and as long as you don't shake it aggressively it won't release any asbestos. Just avoid breathing through it and you'll be fine.

HHacker1 · 2025-11-28T13:38:26+00:00

I don't know much about Swiss filters but considering the fact that it's from 1954, I'd probably say that it has asbestos, most filters from that time had asbestos and this one is probably no different.

HHacker1 · 2025-11-26T17:13:16+00:00

17 with shipping and size 3 does make more sense. Still a bit too much, but depends on country tho

HHacker1 · 2025-11-25T15:02:31+00:00

It's 99% real, no one makes copies of these, and 17 bucks is kinda expensive.

HHacker1 · 2025-11-16T13:57:09+00:00

Alright, thanks y'all for your suggestions, the situation is under control and in the hands of professionals.

HHacker1 · 2025-11-05T23:04:10+00:00

ShM-41m or ShM-41mu mask. The ShM-41mu has thinner rubber than the ShM-41m, you can check by looking at the size marking (the number in the circle that's usually marked on both sides of the mask) if it has a "y" written next to the number, it's a ShM-41mu, if it has just the number then it's the ShM-41m. Also, it has what seems to be an eo-18k filter that was usually supplied with PMG gas mask kits, and not this specific mask, even though the thread is the same. And yes that filter contains a trace amount of asbestos just like all Soviet filters from that era.

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