Ruotsalainen R, Ronnberg R, Majanen A, Sepannen O
Bibliographic info:
10th AIVC Conference "Progress and trends in air infiltration and ventilation research" Espoo, Finland, 25-28 September 1989

The indoor climate and ventilation were measured in 50 dwellings with various ventilation systems. The health and comfort of people living in the dwellings were studied with a simultaneous questionnaire. The ventilation rates measured with a tracer gas using the decay method varied from 0.1 to 1.2 m³/hm³, with an average of 0.5 m³/hm³. The ventilation rate in the bedroom was usually lower than the mean ventilation rate of the dwelling. The ventilation rates measured in a two-week period with the passive perfluorocarbon method varied from 0.2 to 1.9 m³/hm³, with an average of 0.8 m³/hm³. There was a statistically significant correlation between the ventilation rate and the typical sick building symptoms expressed by people living in the dwellings. When the ventilation rate was low (below 0.3 m³/hm³), people had more symptoms than when the ventilation rate was high (above 0.6 m³/hm³). No such correlation was found between the various ventilation systems and health.