Recent studies have documented that indoor air quality, building dampness and other adverse conditions can have an enormous negative impact on the health and well-being of AFT members, their students, clients and patients. When classroom carbon dioxide concentrations exceed recommended levels, student absenteeism goes up. Dampness and mold can exacerbate asthma or create new cases of asthma in buildings. Conventional cleaning agents and other indoor contaminants can make occupants of any space miserable. Explore more information on poor indoor air quality and methods to improve indoor air quality at links below.