FIELD: cleaning technological air media in atomic, chemical and medical industries. SUBSTANCE: filter has housing, fine filter element made from folded fibrous material with corrugated separators laid between folds. Coarse filter element is additionally arranged in housing before fine filter element. Ratio of filtering surfaces of fine and coarse filter elements ranges from 4:1 to 6:1. Used as fine filter element is filtering material on base of glass fiber containing binder and including three successive filtering layers with different diameters of fibers. Fine filter element made from glass fibers of maximum diameter is mounted in housing on side of flow to be filtered. EFFECT: enhanced efficiency of cleaning air medium. 10 cl, 1 dwg, 1 tbl
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Authors
Dates
2003-03-20—Published
2001-03-13—Filed