Project Filter Secondhand Vape Informational Poster #1 Idaho Health Tools 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% What do we know about the health risks of thirdhand smoke? Thirdhand Smoke Resource Center Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects