Does Vaping Cause Secondhand Smoke? Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN HEALTH Does vaping cause secondhand smoke? Doctors explain the side effects: Details below. Parents using e cigs expose kids to dangerous secondhand vapor Futurity The risks of vape pens' secondhand aerosols