Vaping can help smokers kick the nicotine habit, according to new research.
Data from more than 660 users found that around 9 per cent were able to give up their nicotine fix within a year.
That's more than twice the rate of people using placebo devices.
But, researchers say despite the encouraging results, more studies are needed.
There's been a mixed response to the research.
Dr Luke Clancy is the head of the Tobacco-free Research Institute of Ireland
He believes e-cigarettes and other 'vaping' devices need tight control:
