Secondhand vape plumes could form lung damaging radicals American Chemical Society Juul study shows secondhand vaping emissions are less toxic than cigarette smoke E cigarettes contain hazardous substances, addictive and harmful Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN What is Vaping? Vaping Dangers Ashley Addiction Treatment Secondhand vape exposure: Risks and side effects