Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California Should I Be Concerned About Secondhand Vaping? Secondhand Vape Exposure May Be Risky for Asthmatic Teens UCT Lung Institute 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% The risks of vape pens' secondhand aerosols