Used on american optical models r/s4000, r/s5000, r/s6000 and r/s7000 respirators; niosh approved tc-21c-249/250; 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 6240-00-053-7055
NSN 5905-01-605-4978
NSN 6145-01-026-0030
NSN 5925-01-374-1574
NSN 6110-01-375-0949
NSN 5910-00-489-0219
NSN 5950-00-235-0107
NSN 5996-01-620-4181
NSN 5998-01-053-3187
NSN 5985-01-013-9044
NSN 2925-01-394-5650
NSN 6145-01-659-2673