| 摘要 |
Smoking articles such as cigarettes, cigars, and the like are treated to alter the composition of the smoke constituents received by the smoker by forming one or more transverse ducts through the portion of the side wall of the smoking article which remains outside the smoker's mouth and extending into the smoking article a distance at least equal to the radius of the smoking article. In particular, the composition of the smoke constituents may be altered to reduce unwanted or undesirable gases and/or particulate matter. A treated smoking article includes one or more such ducts. If desired, the smoking habit may be substantially reduced or broken by gradually increasing the number of such ducts to produce a corresponding reduction in nicotine or other constituent consumption in steps which are readily acceptable to the smoker.
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