How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center Can I be Affected by Secondhand Vape Smoke? While vaping is not risk free, it is less harmful than tobacco Our World in Data 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% More middle and high schoolers are getting exposed to secondhand vape aerosols, study indicates The Boston Globe E Cigs and Second Hand Vaping: Dangers and Protections