The impact of humidity on health and comfort in an office building

Monitoring of temperature and relative humidity was carried out in an air-conditioned office building during the heating season. In addition, occupants filled in health and comfort questionnaire. Without informing the occupants, humidity was reduced in an experimental area compared to the control area. As this reduction was not so great (2% relative humidity), the differences of occupants perception between areas are not significant. A slight reduction of building related symptoms was observed at higher humidity.