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 Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine Vaping: Clearing the Air Baker Institute Social Media Just Breathe Indiana What is secondhand smoke: All about secondhand smoke that you should know Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect