Is Second Hand Vapor from E Cigarettes Dangerous? [Infographic] The Local Brand Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Secondhand smoke: the invisible killer that continues to cause death and disease Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Second hand vape smoke linked to more asthma symptoms in kids