Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals While vaping is not risk free, it is less harmful than tobacco Our World in Data Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Parents using e cigs expose kids to dangerous secondhand vapor Futurity Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center In secondhand vape, scientists smell risk American Heart Association