Niosh approval tc-23c-1472; hepa type ; 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 5965-00-246-5612
NSN 6240-01-277-6510
NSN 6145-00-254-6117
NSN 6645-01-633-1852
NSN 2925-01-131-8761
NSN 6610-00-561-9381
NSN 6105-01-579-6672
NSN 7035-00-487-8761
NSN 7035-01-385-3628
NSN 5905-01-204-3048
NSN 4140-01-256-9871
NSN 6645-00-270-6817