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 5960-01-275-7552
NSN 6645-00-959-6502
NSN 5945-01-151-9235
NSN 6135-00-284-1406
NSN 6645-00-927-8735
NSN 6145-00-351-4539
NSN 6650-01-584-9606
NSN 5920-01-108-3703
NSN 5910-01-464-2225
NSN 5975-00-389-6958
NSN 5975-01-518-6638
NSN 6620-00-257-2783