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It contains more than 4,000 identified chemical ingredients, including nicotine, ammonia, nitrogen oxides, hydrogen cyanide and trace metals

Data on potential long-term harms of e-cigarette use are not available, and both the task force and patients rated harms as important outcomes for decision-making.23 , 72 Evidence from trials showed high levels of continued use of e-cigarettes following their use for smoking cessation.73 A recent analysis of 9 e-cigarette studies found that among people who successfully quit combustible tobacco using e-cigarettes, 70% continued using e-cigarettes at 6 months or longer.74 For those who continue to use e-cigarettes long term after quitting smoking, there is uncertainty about the health effects

A: Nope

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