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Gas Mask. Vintage Green Gas Mask GP-4. Soviet Gas Mask G-4. Russian Gas Mask GP-4 GP 5 No Filter
Soviet Russian gas mask PDF-7 Child full set NATO Filter CF F3 NBC 40 - GoMilitar
Russian NVA Gas Mask With Filter
I did my own research, and yeah it is GP-5 gas mask. As a person who has red a book about soviet equipment and etcetera on Russian, I say that it is
North Vietnamese Army Gas Mask with Filter - Enemy Militaria
USED Finnish Military M61 Gas Mask Full Face Adult W/60mm Filter, Poncho & Bag - Australia
PRV-U, Gas Mask and Respirator Wiki
GP-5 gas mask - Wikipedia
Adult Russian Gas Mask Without Filter
My pmg from the Russian Ukrainian war : r/gasmasks