Exposure to secondhand smoke contributes to the deaths of 41,000 nonsmoking adults and 400 infants in the United States each year. Children exposed to secondhand smoke are at higher risk for serious health conditions, including Sudden Infant Death Syndrome (SIDS) and respiratory diseases. Smoke-free environments are vital to children's health and well-being, yet close to 40% of U.S. children ages 3 to 11 are exposed to secondhand smoke.