IMPROVEMENTS RELATING TO FILTERS FOR SMOKING ARTICLES

摘要

1533568 Cigarettes and cigars BRITISH AMERICAN TOBACCO CO Ltd 19 Nov 1976 [18 Dec 1975] 51922/75 Heading A2C A cigarette or cigar is provided with a self-bonded cellulose acetate filter containing activated carbon joined to the main body of the cigarette or cigar by a tipping band which allows an inflow of air of 23 to 86% of the puff volume.