Re: Hate to be pragmatic but
Public Health England (an agency of the Department of Health) commissioned a meta-study that determined that vaping is around 95% less harmful than smoking.
The three key findings:
1) the current best estimate is that e-cigarettes are around 95% less harmful than smoking
2) nearly half the population (44.8%) don’t realise e-cigarettes are much less harmful than smoking
3) there is no evidence so far that e-cigarettes are acting as a route into smoking for children or non-smokers