Indoor air quality and respiratory health of children.

Indoor air pollution (IAP) is an important environmental health issue in developing countries and is a major contributor to mortality and morbidity from acute lower respiratory illness in children. In developed countries, IAP in homes is not nearly as severe as it can be in developing countries; however, evidence suggests that it does contribute significantly to the risk of adverse respiratory health in children. Children spend the majority of their time indoors, mostly at home.