Protecting Youth From the Harms of Vaping Smoking and Tobacco Use CDC Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek While vaping is not risk free, it is less harmful than tobacco Our World in Data Secondhand smoke and secondhand aerosol Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN