Building factors associated with school indoor air quality problems: a perspective.

National Institute for Occupational Safety and Health (NIOSH) Health Hazard Evaluation Reports (lllIER) involving schools provide a perspective on the building-related factors associated with indoor air quality complaints. Generally, the school lffiERs reflected multiple building factors associated with the complaints. The most common building factors cited by NIOSH investigators were: insufficient outside air supplied to occupied spaces; water leaks in the building shell; inadequate source exhaust; poor air distribution or balance; and poor heating, ventilation, and air conditioning (HV AC) system maintenance.