Tob. Reporter, 2001, 128-10, p. 56, ISSN.0361-5693.
Filter that removes carcinogens and toxic chemicals
San Antonio, Texas, USA
U.S. Patent 6,273,095. Disclosed herein is a filter for use with tobacco products, such as cigarettes, cigars and pipes, which selectively absorbs toxic compounds and carcinogenic polynuclear aromatic compounds passing through it, but which permits...