E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA 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 Comparison of Nicotine Levels Between Cigarettes and Vapes Ecigator Vaping: The dangers of e cigarettes > Robins Air Force Base > Article Display E cigarettes linked with blood vessel damage National Institutes of Health (NIH) Young e cigarette users are more likely to move on to cigarettes