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 6620-01-013-5432
NSN 6645-01-466-9477
NSN 5985-01-038-3157
NSN 6220-01-511-3423
NSN 6110-01-220-3310
NSN 6110-00-781-1930
NSN 6135-00-221-4720
NSN 6130-01-051-9435
NSN 6610-00-890-9099
NSN 5895-01-049-8525
NSN 5950-01-100-4132
NSN 5990-01-132-3059