Can U Get Second Hand Smoke From Vapes What Does Vaping Do to Your Lungs? E Cig Vapor Or Secondhand Smoke: Which Is Worse For You? YouTube 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% 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