The best Soviet gas mask - ShMS

I get asked a lot what the best Soviet gas mask/respirator is, and I will always answer ShMS. The ShMS, also known by the East German designation SchMS stands for special helmet mask, where as normal ShM masks would stand for helmet mask. The ShMS is designed for looking through optics, so the lenses are flat, sit very close to the eyes and look directly forward, this features provides both a very good field of view and makes the mask better than many newer masks in regards to looking through optics or usin