TOBACCO SMOKE FILTER FOR REMOVING TOXIC COMPOUNDS Russian patent published in 2000 - IPC

FIELD: cigarette industry. SUBSTANCE: filter has porous base with dispersed copper phthalocyanine or moistener, such as sodium pyroglutamate, for absorbing moisture from tobacco smoke with following wet filtering of tobacco smoke. Filter may have porous base with dispersed microcapsules, which may contain moistener, such as sodium pyroglutamate. Filter may contain porous base having dispersed "dry water" with additives or free of additives, or it may contain porous base with dispersed copper-bearing porphyrin. Filter of such structure effectively removes considerable amounts of mutagens and carcinogens from tobacco smoke. EFFECT: increased efficiency and simplified structure of filter. 18 cl, 1 tbl, 2 ex