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 5985-00-151-3981
NSN 5998-00-240-0019
NSN 5855-01-236-9645
NSN 6685-00-366-6997
NSN 5925-00-629-1974
NSN 2925-01-448-2880
NSN 7035-01-400-3666
NSN 6145-00-239-2143
NSN 5996-01-418-2802
NSN 5920-01-065-1824
NSN 6610-00-877-5905
NSN 6150-00-952-2766