Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine Does Vaping Cause Secondhand Smoke? E Cigarette Use Among Youth Smoking and Tobacco Use CDC More children are being poisoned by e cigarette liquids. Here's what parents need to know