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 6135-01-505-1293
NSN 5920-01-435-0555
NSN 5998-00-243-2083
NSN 5930-01-325-5611
NSN 5965-01-200-6613
NSN 5920-01-424-2704
NSN 5855-01-594-7809
NSN 4140-01-623-4532
NSN 5945-01-039-5452
NSN 6620-01-442-8444
NSN 5945-01-311-1777
NSN 6135-01-633-8502