Ten years ago, a new hvac system was installed and, over time, building occupants began experiencing symptoms believed to be a result of poor indoor air quality. Employee productivity was low due to frequent headaches and general discomfort. Courtrooms on the second and third floors were often hot and stuffy in the summer, and they suffered from stale air year-round.
He found that air intakes were drawing outside air filled with auto exhaust fumes and, because ventilation fans were not operating properly and installation never occurred on certain specified ventilation equipment, contaminated air was able to enter the airshafts. In addition, ductwork in the upper two floors was incomplete, and ventilation in the courtrooms came from the hot, dusty attic.