What is secondhand smoke: All about secondhand smoke that you should know Is Secondhand Vaping Something to be Concerned About? Secondhand Vape Exposure: Effects, Who's at Risk, and More What Are the Risks from Secondhand Vape Smoke? NVB Inc. Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Juul study shows secondhand vaping emissions are less toxic than cigarette smoke