A replaceable device designed to remove dust, pollen or other foreign matter from the air passing through it. The removal of particles is accomplished by porous, fibrous or shredded material (metallic or non-metallic) which is loosely woven or matted, the shape of which may be maintained by stiffening or binding material. It is designed to fit into a filter element, air conditioning or for direct application to air conditioners, ventilation systems, hot air furnaces, and electrical and electronic equipment which have retaining devices. It may be furnished in custom size form or in a continuous length. Excludes filtering pad, air cooler; and filtering roll, air conditioning. Excludes bulk materials not specifically designed for filtering. See also insulation blanket, thermal; plastic material, cellular; rubber sheet, cellular.
NSN 6135-00-437-5182
NSN 5975-00-150-6400
NSN 6685-01-107-9643
NSN 2925-00-707-6770
NSN 5950-01-411-6124
NSN 5920-00-594-3124
NSN 5915-00-243-2030
NSN 5895-01-399-6887
NSN 5920-00-777-6490
NSN 6685-00-882-1643
NSN 5965-01-233-8607
NSN 6610-01-343-7614