Niosh approval no. Tc-23c-134; 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 6105-00-074-3223
NSN 6220-01-295-8113
NSN 6105-01-311-8172
NSN 5835-00-269-2232
NSN 5996-01-281-7336
NSN 5996-00-503-8499
NSN 6110-00-525-3418
NSN 6320-01-098-2503
NSN 6110-01-045-1083
NSN 5930-01-356-1792
NSN 5920-01-005-0161
NSN 5915-01-134-2817