ABSTRACT
At present, there is a growing demand for night entertainment establishments to fill the free time, explaining this trend by the need that people have to seek a refuge from his professional and personal life, looking for moments of relaxation, conviviality and fun. Due to this significant increase arises the concern with the quality of the spaces intended for the nightlife, being the main concern the indoor air quality. The spaces intended for the nightlife venues are more conducive to reveal lower levels of indoor air quality, which consequently present a greater risk to the health of its occupants. These types of situations are caused mainly by the huge concentration of people in a particular closed space with ventilation conditions, sometimes insufficient, and the type of materials used in the construction of buildings. According to a study conducted in the city of Braga in relation to the air pollution level caused by cigarette smoke in workplaces, it was verified that the concentrations of pollutants in nightlife venues were about 100 times higher than the concentration of pollutants observed in spaces intended for the restoration (Precious, J., Calheiros, J., López, M., & Ariza, C. 2009).
