Used on american optical models r/s4000, r/s5000, r/s6000 and r/s7000 respirators; niosh approval tc-23c-339/340; 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 2925-00-004-8881
NSN 5990-01-423-8189
NSN 5950-01-076-4570
NSN 6240-01-200-7937
NSN 5835-00-851-6470
NSN 5835-01-069-5433
NSN 7035-01-040-1180
NSN 5895-00-597-8725
NSN 5835-00-148-9719
NSN 5925-01-031-1473
NSN 6610-01-508-3125
NSN 6645-01-224-0101