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 E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Secondhand smoke from cigarettes worse than vapes UPI.com E Cigs and Second Hand Vaping: Dangers and Protections Juul study shows secondhand vaping emissions are less toxic than cigarette smoke