Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London 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% Study shows second hand vaping exposure very low compared to second hand smoking Should I Be Concerned About Secondhand Vaping? Can You Get Second Hand Smoke from a Vape? Crystal Vape & Crystal Bar & SKE Vape Official Station E Cigs and Second Hand Vaping: Dangers and Protections