Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London 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 Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Secondhand vape exposure: Risks and side effects Secondhand Vape Exposure: Effects, Who's at Risk, and More