FIELD: filters for cleaning liquids or gases. SUBSTANCE: filtering material includes fibrous matrix with pores reducing in thickness of filtering layer and finely-dispersed material whose particles have different sizes and are received by pores of fibrous matrix at reduction of size in thickness of matrix. Proposed method includes preparation of suspension of finely-dispersed material and filtering this suspension through fibrous matrix. EFFECT: increased retentivity relative to mixtures removed from any media at retained high through of filter. 4 cl, 1 dwg, 2 tbl
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