More about the TF-1 gas mask and its derivatives

So, this is basically a continuation of my discussion about the TF-1 gas mask and its derivatives, of which you can see the playlist here: https://youtube.com/playlist?list=PLUdt_dYcAdHNQQ11bzBbu9w4OQPUtkQSX&si=hTGj9vmDhd2LUN0t Pretty much the rabbit hole regarding this mask is deeper than the Mariana Trench, but I'll try my best to seek information on it. Please don't mind much about my butchered pronunciations, or grammatical errors that you might encounter in this video. Anyhow, I hope this video provides useful knowledge to those watching it. Check out the wiki article regarding this mask: https://gasmaskandrespirator.fandom.com/wiki/TF-1 Song used: Сны Твоих Мёртвых Друзей - 1992