Using E cigarettes to Stop Smoking My E Liquid Supplies Resources for Quitting Smoking College of Medicine Penn State Vaping is not replacing smoking. It is often added to it. This is called dual use. Nearly half of e cigarette users still smoke cigarettes. What this means: Smoking continues alongside vaping Quit Should I Use E Cigarettes to Quit Smoking? Vaping: It's hard to quit, but help is available Harvard Health