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botstowo.bsky.social
(He/They) Gas mask collector and YouTuber https://linktr.ee/botstowo
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This is the experimental Chinese TF-12D. Manufactured by TangFeng, it has a similar profile to the Avon M53 series, but is ultimately entirely different.

submitted 141 days ago • 0 comments

Oops! I forgot about this app! Here’s me wearing my M50 JSGPM and budget night vision setup

submitted 141 days ago • 0 comments

I really do make this shit look effortless #airsoft

submitted 150 days ago • 0 comments

I finally uploaded a new video! youtu.be/pXrKlm5Rjss?...

submitted 152 days ago • 0 comments

My first video on a YouTube I think its good for starting youtuber But sadly i m little bit ill so i sound terrible youtu.be/uk9gJO0LvfU

submitted 154 days ago • 0 comments

Oops! It’s been like 3 months since I’ve made a video! I should uhhhh do something about that

submitted 159 days ago • 0 comments

This is Cover’s Automatic Respirator. First patented in 1901, it was sold into the early 1970s! Sponge respirators were wholly obsolete by that time, but the masks continued to be sold because of the company’s stagnation prior to Bill Moon purchasing it.

submitted 165 days ago • 0 comments

My most recent acquisition, an MSA GB riot control mask! I’m gonna restore it, but I’ve gotta find a donor mask for the hose

submitted 166 days ago • 0 comments

Here’s an older video of me scanning some uranium ore with a GMC-300S Geiger counter!

submitted 169 days ago • 0 comments

Pictured is the complete American M17 series. From left to right: ABC-M17, M17A1, transitional period M17A2, and M17A2. The M17A2 has the winterizing kit and the laser protective outserts mounted.

submitted 170 days ago • 0 comments

Pictured is a Burrell Gas Mask with a Kops-Type Facepiece (AKA the Burrell-Kops). While manufactured by Mine Safety Appliances, this one was distributed by Pulmosan.

submitted 170 days ago • 0 comments

Just learned that the historian Alex Wellerstein is on here! He does incredible work so I’d def recommend for the 3 people that follow me that aren’t bot accounts to check out @wellerstein.bsky.social

submitted 170 days ago • 0 comments

Pictured is a Pro-Tech Respirators, Inc. Pro-Fit series Model 1390 half-face respirator with its carrying case.

submitted 171 days ago • 0 comments

This is the M45, the previous-generation of gas mask for USSOCOM. It was replaced by the Avon M53. The C420 pouch and filters are modern.

submitted 172 days ago • 0 comments

Pictured are some examples of the Gem from F.A. Hardy and Company. Both the original half-face and the later full-face versions are represented here.

submitted 173 days ago • 0 comments

This is the Dupor No. 20 from H. S. Cover Co.! It uses a pair of sponge filters intended to be soaked in water. The water would cool the air passing through the filters, earning the No. 20 the title of “water-cooled respirator”. It was mainly advertised to firemen.

submitted 173 days ago • 0 comments

This is the German VM40, a civil defense gas mask adopted in 1940. It differs from its predecessor (VM37) by replacing its helmet style design with a head harness to save rubber. The big flap on the front is its exhale valve.

submitted 174 days ago • 0 comments

Nothing historically interesting, I just thought this photo I took goes hard

submitted 175 days ago • 2 comments

Pictured is the Blue Box, an Automatic Respirator of an unknown make and model. It has been nicknamed that due to its distinct blue box without any markings or branding. The other box is for a late Cover’s Automatic Respirator and serves as a comparison.

submitted 175 days ago • 0 comments

This is the American M2-10A1-6 Lightweight Optical Mask. Its small, flat, and circular lenses are intended to interface more easily with artillery scopes, binoculars, or other optical devices. The threaded bar between them is used to adjust the interpupillary distance.

submitted 175 days ago • 0 comments

This is the Comfo Respirator with Hood from Mine Safety Appliances (MSA). It was a variation of the Comfo meant for use against especially abrasive dusts or to make bodily decontamination easier.

submitted 176 days ago • 0 comments

Pictured is an XM50 JSGPM from 2004. It’s an experimental version of what would become the M50 JSGPM. There are many differences between it and the finalized mask. Most notably, it uses a clear silicone oronasal cup and sealing disks.

submitted 177 days ago • 0 comments

This is the Bureau of Mines Box Respirator, the US military’s first attempt at a gas mask. Made in 1917, it failed due to its thin rubber that couldn’t withstand more abrasive chemical weapons like chloropicrin. The filtering elements of the Type A canister were segregated, too, lowering efficiency.

submitted 177 days ago • 0 comments

This is the Dupor No. 10 Chemical Cartridge Respirator from H. S. Cover Co.! It was a half-face respirator meant to protect the wearer from light concentrations of deleterious gases, vapors, and dusts. Here it is outfitted with a pair of organic vapor cartridges.

submitted 177 days ago • 0 comments

Here’s an infographic I drew a little while ago that demonstrates the differences between various automatic respirators. This is far from all of the ones known to exist. An AR is any mask based on H.R. Hurd’s original AR, or is based on one that is.

submitted 178 days ago • 0 comments

Here’s a Pro-Tech Model 1490 half-face respirator from the Pro-Fit series. The series also included the Model 1390 (made from monoprene) and the 1590 (made from silicone). The 1490 is made from PVC which allows it to conform to the face better by becoming more pliable when exposed to body heat.

submitted 178 days ago • 0 comments

Pictured is an American military ABC-M17. This mask featured internal ‘porkchop’ style filters which greatly reduced overall bulk. The M17 series would wind up being very successful, inspiring clones made across the world and serving into the 1990s.

submitted 178 days ago • 0 comments

Pictured is an American M9A1 gas mask with an M1 winterizing kit and an M11 canister. The dark green tinted lens outserts were designed to guard against snow blindness. The hood has a pocket for the exhale valve that retains heat so the condensation doesn’t freeze the valve shut!

submitted 179 days ago • 1 comment

Pictured is a Model 1694S gas mask from Pro-Tech Respirators, Inc.. It was an American commercial / industrial mask. The 1694S differs from the regular Model 1694 by having a silicone oronasal cup.

submitted 179 days ago • 0 comments

This is my first post on Bluesky! Pictured is an All-Vision rebreather facepiece from MSA equipped with a Maskfone. This was a commercial mask and the Maskfone allowed the user to communicate with people outside a contaminated environment via a wired telephone system.

submitted 179 days ago • 0 comments