| 摘要 |
The present invention is directed to cigarettes and other smoking articles, as well as disposable cartridges for such smoking articles, which utilize compact carbonaceous fuel elements, and which provide low levels, i.e., less than about 10 mg, of carbon monoxide (CO) to the smoker. In general, these high density (about 0.7 to 1.5 g/cc) fuel elements have a plurality of passageways therein or thereon, and further comprise at least about 80-90% carbon by weight. The fuel elements are less than about 7 mm in length, preferably from about 3 to 6.5 mm, most preferably from about 5.5 to 6.0 mm, and less than about 7 mm in diameter, preferably from about 4.0 to 6.5 mm, and most preferably from about 4.8 to 6.0 mm.
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