DUTCH APPROACH TOWARDS ENVIRONMENTAL TOBACCO SMOKE EXPOSURE REDUCTION IN THE HOSPITALITY INDUSTRY

摘要

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. This was done through literature reviews on ventilation and air cleaning technologies. 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. Parameters are ventilation strategy (mixing, displacement), number of smokers, ventilation flow, separation (walls, air curtains) and the number of people moving from one room to another. With smokers and non-smokers in the same room application of displacement ventilation enables reductions around 98%. By separation of smokers and non-smokers considerable higher reductions can be obtained. Air cleaning is relatively unimportant in these cases. The use of the study results in the Dutch legislation is shortly discussed.