GGG-M-125-5B, FEDERAL SPECIFICATION, RESPIRATOR ASSEMBLY: HALF MASK, AIR-PURIFYING PARTICULATE-FILTER (FOR DUSTS, FUMES, AND MISTS) (14 OCT 1985)

GGG-M-125-5B, FEDERAL SPECIFICATION, RESPIRATOR ASSEMBLY: HALF MASK, AIR-PURIFYING PARTICULATE-FILTER (FOR DUSTS, FUMES, AND MISTS) (14 OCT 1985)., This specification covers the requirements for air-purifying, half-mask respirators with filters for removing dust, metal fumes, or mists from air.