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 6145-00-224-5245
NSN 5835-01-155-8301
NSN 2925-01-384-4139
NSN 6110-01-446-6678
NSN 6645-00-971-2023
NSN 5996-01-418-5140
NSN 5855-00-494-9581
NSN 5855-00-014-5008
NSN 6645-01-300-5054
NSN 6105-01-391-3513
NSN 5910-01-137-6342
NSN 5925-00-726-0122