It is clear from the overall evidence that electronic cigarettes are not as risky as tobacco cigarettes in terms of acute effects on lung function. On this issue, Dr. Glantz's comment is simply wrong.

Dr. Glantz is simply wrong. There is abundant evidence which demonstrates that while vaping does cause some degree of respiratory irritation (and probably triggers a bit of inflammation), it is far safer than smoking and has far less of an effect on lung function.

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