Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN While vaping is not risk free, it is less harmful than tobacco Our World in Data Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Parents using e cigs expose kids to dangerous secondhand vapor Futurity