Used on american optical models r/s4000, r/s5000, r/s6000 and r/s7000 respirators; niosh approved tc-21c-305-306; sole source required by statute 6.302
A self-contained unit designed for placement in the holder of a respirator or air line mask. It may consist of a filtering element of fibrous material such as felt, paper, or the like secured between two end plates; or it may be a cylindrical container of light weight construction having flat or slightly rounded ends which may be either perforated or of wire mesh, filled with charcoal or chemicals which absorb contaminants from the air passing through it. See also filter, respirator, air filtering.
NSN 5990-00-067-6791
NSN 5996-01-496-0462
NSN 6650-01-334-5789
NSN 7035-01-527-3883
NSN 5855-00-925-0114
NSN 7035-00-890-7649
NSN 5990-01-575-3275
NSN 6220-01-158-5956
NSN 6240-00-635-9953
NSN 5910-01-098-5267
NSN 5905-00-807-1021
NSN 6240-00-332-2084