Vaping refers to the act of inhaling and exhaling aerosol, often called vapor, produced by an electronic cigarette or similar device. These devices heat a liquid that usually contains nicotine, flavorings, and Government must stop overlooking '95% less harmful' e cigarettes, say MPs Science, Climate & Tech News Sky News What are the respiratory effects of e cigarettes? The BMJ A decade ago, the most frequent opinion among smokers was that vaping was less harmful than tobacco. But ten years on, the opposite is true: over a third say that vapes are