FIELD: production of filtering materials. SUBSTANCE: method involves impregnation of support being prepared of cellular foamed polyurethane by suspension, removing excess of said suspension and hardening half-finished product. To improve impregnation half-finished product is wetted in solution of organic solvent which is chemically inert with respect to said suspension. After impregnation by suspension of plastics mentioned above half-finished product is dried. EFFECT: improves efficiency of the method. 1 tbl
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