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 5930-01-145-2440
NSN 5930-00-162-8870
NSN 6145-00-163-7493
NSN 6685-00-316-9029
NSN 6110-01-132-4248
NSN 2925-01-458-5808
NSN 5960-00-170-9614
NSN 6610-01-053-6781
NSN 6685-01-327-3286
NSN 4140-01-499-8906
NSN 6320-01-512-2031
NSN 6135-01-067-8331