How Do You Know When a Vape Pen Is Empty? 5 Key Signs 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 Does Vaping Dehydrate You? What You Should Know What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Vaping Indoors and How it Contributes to Sick Home Syndrome Bactronix Vaping safer than smoking so why are people struggling to quit e cigarettes? Vaping The Guardian