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 Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM In secondhand vape, scientists smell risk American Heart Association Tobacco Smoke, Vaping, and Asthma AAFA.org Second Hand Vaping: Minimal Impact Compared to Smoking