Secondhand Smoke Vermont Department of Health Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN E Cigs and Second Hand Vaping: Dangers and Protections Secondhand smoke and secondhand aerosol Can vaping damage your lungs? What we do (and don't) know Harvard Health