Secondhand Smoke vs Vape: What the Science Says Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals E Cigs and Second Hand Vaping: Dangers and Protections Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Secondhand Smoke and Electronic Cigarette Aerosols US EPA Differing Opinions About Second Hand Vape Exposure Vaping Post