Russian army gasmask PMK-S

The gas mask filtering PMK-S (PMK-SV, PMK-SV-1) is part of the personal equipment kit of the internal troops of the Ministry of Internal Affairs of the Russian Federation and is designed to protect respiratory organs, face and eyes from exposure to toxic substances (OM), biological aerosols ( BA), radioactive dust (RP), other toxic chemicals (TCV), including ammonia, vapors, gases and aerosols of tear (irritant) substances.