Effect of second hand fumes from vaping on young lungs Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine 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 2nd Hand Vape Smoke Secondhand Vape Exposure: Effects, Who's at Risk, and More