Secondhand vape exposure: Risks and side effects Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals What Are the Risks from Secondhand Vape Smoke? NVB Inc. Juul study shows secondhand vaping emissions are less toxic than cigarette smoke When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice