5 Vaping Facts You Need to Know Johns Hopkins Medicine While vaping is not risk free, it is less harmful than tobacco Our World in Data Can Vaping Cause Eye Problems? Will Vision Portland, OR FACT: Most e cigarette users also smoke cigarettes, a pattern known as dual use. This means the tobacco industry isn't helping people quit; it's sustaining addiction through another product. While the industry claims Half as many Britons' vape as smoke