Annual savings by switching
£0
Even with the new vape tax, switching still saves significantly.
Relative harm — NHS / PHE position
Public Health England 2015 evidence review (cited by NHS): vaping is estimated around 95% less harmful than smoking.
Smoking — 100% (reference)
Vaping — ~5% relative harm
Vaping is not risk-free. Figure is an estimate based on toxin-exposure modelling for adult smokers.