SIDESTREAM CIGARETTE-SMOKE GENERATION AND EXPOSURE SYSTEM FOR ENVIRONMENTAL TOBACCO-SMOKE STUDIES

Previous studies of the effects of environmental tobacco smoke have us ed artificial systems for generating aged and diluted sidestream cigar ette smoke. Generally these systems have been designed for large chamb ers, which require expensive smoking machines, use large air flows, an d are labor-intensive. We present a new method for producing sidestrea m smoke and describe an exposure system for smaller chambers that coll ects, ages, and dilutes smoke to simulate environmentally relevant con ditions. Furthermore, our system is relatively inexpensive, maintains consistent levels of total suspended particulates (TSP) and carbon mon oxide that can be set at a variety oi concentrations, and significantl y reduces the manual component of exposure studies.