Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Does Vaping Cause Secondhand Smoke? Can U Get Second Hand Smoke From Vapes What Does Vaping Do to Your Lungs? E Cigarettes (Vapes) Smoking and Tobacco Use CDC According to a Centers for Disease Control and Prevention (CDC) study, 40% of U.S. adults believe that children's exposure to secondhand aerosol from e cigarettes causes only some or little harm, and 5%