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 What is Thirdhand Smoke? Thirdhand Smoke Resource Center Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of health problems. Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Secondhand Smoke and Electronic Cigarette Aerosols US EPA Can You Get Second Hand Smoke From A Vape?