Used on american optical models r/s4000, r/s5000, r/s6000 and r/s7000 respirators; niosh approval no. Tc-23c-325/326; 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 6620-01-400-2928
NSN 6320-01-291-4870
NSN 6105-01-054-7041
NSN 5965-01-061-6871
NSN 6645-01-142-2416
NSN 5920-01-389-3686
NSN 6105-01-490-6054
NSN 5965-01-193-5221
NSN 6650-00-578-6543
NSN 6150-01-432-7529
NSN 5935-01-354-1365
NSN 7035-01-645-5653