Parents using e cigs expose kids to dangerous secondhand vapor Futurity Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice 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 vaping exposure very low compared to second hand smoking UCL News UCL University College London First hand smoke comes from all combustible tobacco products. This includes Cigarettes, Cigars, Pipes, Hookah, and VAPES. This is the primary source of nicotine addiction. No amount of Second hand smoke is safe and Do Vapes Have Second Hand Smoke Can You Get Second Hand Smoke from a Vape?