FIELD: tobacco industry.
SUBSTANCE: disclosed is a tobacco smoke filter or filter element comprising a longitudinally extending core of tobacco smoke filtering material including an additive spaced longitudinally from a first end of core, a first wrapper around core; and a second wrapper around first wrapper, first wrapper defining at least with (for example, between itself and) second wrapper at least one channel (for example, from 5 to 23 channels) extending longitudinally of filter from at least one end thereof.
EFFECT: smoke filtration.
11 cl, 3 dwg
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