Secondhand smoke from vaping could be harmful to children: study ABC13 Houston 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% Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC13 Houston Complete Guide to Secondhand Vaping Devices Vape Direct