Niosh approved 42cfr84. Used against mercury vapor/chlorine
NSN 6145-01-178-6056
NSN 5855-01-495-1750
NSN 6110-01-394-5302
NSN 6145-01-116-8137
NSN 6320-01-449-1014
NSN 6650-01-429-9242
NSN 7035-00-834-2090
NSN 6610-01-160-3770
NSN 6130-01-006-7990
NSN 6135-00-998-5884
NSN 5999-01-428-6301
NSN 4140-00-551-3151