The National Institute for Occupational Safety and Health (NIOSH) received a request from the Indiana Occupational Safety and Health Administration to evaluate a possible health hazard at a university-operated health clinic. Employees believed their symptoms were related to ongoing indoor environmental quality (IEQ) problems at the health clinic. Their symptoms included headache, dizziness, lethargy, cough, metallic tastes, and itchy and watery eyes. NIOSH's findings and recommendations are discussed.