Five days a week, more than 55 million children, teachers and employees spend the majority of their waking hours in the U.S. school buildings. Besides being exposed to science, history and math, children and teachers are exposed to hundreds if not thousands of potentially hazardous chemicals and pollutants. Because children spend so much time in schools and daycare facilities, it it important to reduce exposure to environmental pollutants in these environments as much as possible. In this article, the author provides various steps that schools and universities can take to improve their indoor environments.