Gas Mask for Dummies - CBRN

When I got my issued "gas mask" in the German Bundeswehr, I took a closer look at it and was a bit scared. Since the bottom opening is just sealed with a small rubber piece. So if this piece does fail or is missing, the gas will come to the inside of the CBRN mask.
I am not an expert on chemical threats or protection against them. But I want to share some experience I had with this mask and will do a CBRN for dummies explanation.
If you want to buy a mask, that you can use. Better do not buy cheap or surplus masks. And also invest in a suitable filter. But if you need a mask as a civilian, is up to you.
For military and law enforcement it should be clear. So this video is not meant to be for you, guys. I am sure you know how it works and if you need one.
The Mira Safety CM-6M Mask I wear in this video:
www.mirasafety.com/products/c...
The Mira Safety Filter I have in this video:
mirasafety.com/products/cbrn-40mm-gas-mask-filter-nbc-77-sof
The shooting range in Austria, where I did the shooting:
edelweiss.world/