In this study the question whether or not and to what extend ventilation and air cleaning can contribute to the reduction of exposure to environmental tobacco smoke in the hospitality industry is answered. First a literature review on ventilation and air cleaning technologies has been executed. Unfortunately, only a few papers reporting experimental data from the hospitability industry were available to answer the proposed question. Therefore a model describing the effect of different ventilation systems and building layouts has been set up. With smokers and non-smokers in the same room reductions around 98% are predicted for application of displacement ventilation. By separation of smokers and nonsmokers considerable higher reductions can be obtained. Air cleaning is relatively unimportant in these cases. In the second part local displacement ventilation systems have been installed and tested in a discotheque, a dining pub and a drinking pub. The reduction of gaseous compounds in relation to the existing situation was 95, 94 and 98% respectively. The fine dust reduction in the discotheque was 92%, in the pubs the reduction was lower. Most probably, this is caused by the fact that other sources of fine dust then tobacco smoke such as clothing were relevant.
Overview of Recent Dutch Studies on Environmental Tobacco Smoke
27th AIVC and 4th Epic Conference "Technologies & sustainable policies for a radical decrease of the energy consumption in buildings", Lyon, France, 20-22 November 2006