Figures released in 2014 by the health charity Action on Smoking and Health (ASH) reveal that usage among adults in Britain of electronic cigarettes  which do not contain tobacco and produce vapour, not smoke  tripled from an estimated 700,000 users in 2012 to 2.1 million in 2014.

Figures released in 2014 by the health charity Action on Smoking and Health (ASH) reveal that usage among adults in Britain of electronic cigarettes  which do not contain tobacco and produce vapour, not smoke  has tripled from 700,000 users in 2012 to 2.1 million in 2014.
