Features of the four generations of electronic cigarettes. different Download Scientific Diagram The nicotine content of many disposable vapes is equivalent to a pack of 20 cigarettes. If you don't smoke, don't vape. #NoSmokingMonth 20mg Vape vs Cigarettes: How Many Puffs Equal 1 Cigarette Vapesourcing E cigarettes nearly twice as effective as nicotine replacement therapy to stop smoking, study finds The Pharmaceutical Journal