June marked the first annual National Healthy Homes Month. This initiative of the U.S. Department of Housing and Urban Development (HUD) was launched to provide people with the opportunity to learn more about housing and its effects on health. The National Center for Healthy Housing estimates that approximately 35 million metropolitan U.S. homes have at least one health and safety hazard. As a means to tackle this issue, HUD set out eight healthy home principles that can be followed to make the home environment healthier.