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Modification of Tobacco Smoke

  • C. H. Keith

Abstract

Over the years, a growing knowledge about the properties of tobacco smoke, particularly that generated by cigarettes, has led to the development of greatly modified smoking products. Some twenty years ago most U.S. cigarettes were short, unfiltered, and contained relatively unflavored robust blends of natural tobaccos. Nowadays a wide variety of filtered, ventilated, longer and sometimes slimmer cigarettes are available to the smoking public. Their preference for such modified cigarettes is amply demonstrated by the growth of the filter cigarette portion from practically nothing to 80% or more of the U.S. cigarette market. A further demonstration of such modification has been the steady decrease in tar yield from cigarettes over the years. For example, the average values for popular brands decreased from 30–35 milligrams to 18–22 milligrams per cigarette in the past 17 years.

Keywords

Pressure Drop Removal Efficiency Tobacco Smoke Selective Removal Filter Length 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1972

Authors and Affiliations

  • C. H. Keith
    • 1
  1. 1.Celanese Fibers CompanyCharlotteUSA

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