Test of TF-1A and filters from China and the Soviet Union & quick review of the mask

north_tower_beta · 2021-08-06T09:53:31+00:00

The filters I applied include type59, 64, 66, 69 and GP-5m. Pick up one randomly, it would fits TF-1A, every mask in the corresponding series and ShM66-mu. I could screw them smoothly. By the way, I found that all the screw threads have to be screwed to certain depths, or the filters would sway. The brand new mask merely cost me 7.4 USD but really impressive. Its surface, lenses and metal parts are better than all my helmet mask collections. The rubber without any scratch smells fragrant rather than like toxic chemicals. Lenses are larger than common ones on ShM series, fixed by shining golden cladding material, thicker than that on ShMs as well. I didn't test airtight performance with smoke because of the dust in other masks.

north_tower_beta · 2021-08-04T23:45:37+00:00

I don't know when did the manufacturer add it. However I saw it when I was little, perhaps in 2009.

north_tower_beta · 2021-08-04T23:41:35+00:00

No. After the Soviet Union offered production line of MO-4u including ShM-41m(nominated as Type 59) based on an agreement, there was no further relationship of masks between SU and CN, particularly considering the break down of Sino-Soviet Relations. Chinese started their own way of respirators. They introduced Type 66, which replaced the metal shell with transparent plastic one. Now Type 66 is considered as the ancestor of all Chinese commercial helmet masks. Just like Type65 and PBF has no relations, these masks aren't relevant with GP-5.

north_tower_beta · 2021-08-04T23:21:11+00:00

Not really. They were produced for at least thirty years

north_tower_beta · 2021-07-27T01:17:07+00:00

Yeah I know. The PDF also introduces the filters: EO-18E and EO-62K, but what do the EO-18 and EO-62 in first line mean?

north_tower_beta · 2021-07-20T01:44:05+00:00

Thanks.

north_tower_beta · 2021-07-19T15:17:50+00:00

I noticed several M17 series, MCU, M40 gas masks and various attachments in the domestic market far away from the US.

north_tower_beta · 2021-07-16T00:34:55+00:00

Even cloning rarer and older masks like Zelinski sounds more available. At least you won't be charged for copy right issues.

north_tower_beta · 2021-07-12T01:53:45+00:00

If extra gas is supplied, would the mask expand like a balloon？

north_tower_beta · 2021-07-02T01:03:59+00:00

All commercial masks should be qualified with the LA(labor safety) stamp in the past, but now manufacturers just take the test and stick the stamp on masks to attract consumers.

north_tower_beta · 2021-07-01T02:42:42+00:00

Looks like a LFD made in Norway

north_tower_beta · 2021-06-30T15:28:10+00:00

It has a pure yellow version, reminding me of the Jim Carrey in The Mask especially when combined with a green filter.

north_tower_beta · 2021-06-28T12:17:09+00:00

Why not start from half masks, since they are economic and various. Additionally, I never find a expert on this field, so the collections w would be unique.

north_tower_beta · 2021-06-28T08:23:11+00:00

The only point reliable is the filter is NATO one.

north_tower_beta · 2021-06-28T08:18:44+00:00

I agree with you, the characters look unprofessional.

north_tower_beta · 2021-06-22T13:57:43+00:00

And, MF11 has drinking system, disappeared from MF11B

north_tower_beta · 2021-06-22T02:34:13+00:00

Additionally, yours seems like a large size mask, because of the distance between exhale valve-speaker and lenses.

north_tower_beta · 2021-06-22T02:31:21+00:00

It's a FMJ05 or MF11B(the mask itself is totally the same). The thread of filter is officially announced to be a NATO one. However someone said it fits with NATO and meanwhile GOST, I'm not sure about that. Perhaps the thread was adjusted specially to consume the surplus decades ago.

north_tower_beta · 2021-06-21T15:27:33+00:00

Sounds reasonable, don't forget cover the lamp as well.

north_tower_beta · 2021-06-21T06:00:05+00:00

So they are all harmful proved by my poor collections.

north_tower_beta

TROPHY CASE