Used on american optical models r/s4000, r/s5000, r/s6000 and r/s7000 respirators; niosh approval no. Tc-23c-490/491; 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 6685-00-269-6444
NSN 5996-01-154-9046
NSN 6645-01-434-9993
NSN 6105-01-463-8557
NSN 5910-01-462-5880
NSN 6320-01-323-7565
NSN 6320-01-576-6310
NSN 5895-00-279-8956
NSN 5990-00-877-9838
NSN 2925-00-141-9748
NSN 5996-01-164-6758
NSN 5950-01-657-9767