Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Does Vaping Cause Secondhand Smoke? E Cigarette Use Among Youth Smoking and Tobacco Use CDC E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine