Marianna Tuomainen, Juha Smolander, Pirjo A. Korhonen, Lari Eskola, Olli Seppänen
Bibliographic info:
Healthy Buildings 2003 - Proceedings 7th International Conference (7th-11th December 2003) - National University of Singapore - Vol. 2, pp 516-521, 3 Fig., 2 Tab., 6 Ref.

Earlier studies have shown that airflows are not well balanced in office buildings. This maylead to too low ventilation rates in some rooms and too high ventilation rates in others.Several studies have shown that low ventilation rates may lead to a higher prevalence of SBSsymptoms. The reduction of these symptoms may be achieved with improved ventilation.The purpose of this study was to evaluate the benefits of balancing the airflows of the airdistribution system of an office building in Helsinki. The ventilation rates were measured inall the office rooms in the building before and after balancing. The results showed that thelarge variation in ventilation rates per person was considerably reduced and ventilation ratesper person were significantly higher after balancing. The benefits of adjusting and balancingthe air distribution system may exceed the costs if the risk of SBS symptoms is reduced.