Abstract
The purpose of this study is to present a method to assess the distribution of perceived air pollution in a room using trained panel with reference gas of acetone. Fifty-one subjects were trained to judge perceived air quality in decipol proposed by Fanger, and sixteen judges selected among them reported the indoor air quality of tobacco smoke from smokers at three measuring points in a small chamber. Age-of-air was calculated from the history of tracer gas concentration in order to assess ventilation efficiency at points of interest in a room.
