Does Vaping Cause Lung Cancer? 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 While vaping is not risk free, it is less harmful than tobacco Our World in Data What Happens When You Quit Smoking and Start Vaping Instead? Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times