Ventilation rate in office buildings and sick building syndrome.

Attempts to examine the relationship between ventilation rate and sick building syndrome symptoms. Uses a cross sectional population based study of 399 workers in 14 mechanically ventilated office buildings without air recirculation or humidification in Finland. Air flow was measured through exhaust air outlets in the room. A questionnaire was also used. States that the results suggest that outdoor air ventilation rates below the optimal increase the risk of sick building syndrome symptoms.