This publication describes how ventilation can help to reduce people's exposure to environmental tobacco smoke (ETS). While ventilation cannot give non-smokers total protection, the authors emphasize that by using correct ventilation, the effects of ETS can be reduced significantly. The book stresses that the key to reducing ETS in non-smoking areas is to allocate designated areas for smoking and provide proper ventilation. The ventilation must be designed carefully so that the airflows inside the room do not carry tobacco smoke outside the designated smoking area. This book is aimed at HVAC Engineers, Architects, Facility Managers and other publications. 50 p., 6.5 x 9.5 in.