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 Secondhand smoke and secondhand aerosol Is it safe to vape around babies & children? How it affects them Allen Carr's Easyway Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek