While smoke and vapor may seem similar, smoke from burning delivers a harmful chemical punch due to its chemical reaction. Explore what's inside both and uncover the differences here: https: www.pmi.com our science the difference between cigarette 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 Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Another Gross Reason to Put Down the E Cigarettes American Lung Association