Negligible from the vapour. Prove that secondary vape causes any harm.
Research so far shows that legal e-cigarettes are far less harmful than smoking. But they are not risk-free and we don’t yet know their long-term effects.
www.cancerresearchuk.org
Is passive vaping harmful?
There is no good evidence that second-hand vapour from e-cigarettes is harmful. As vaping is still relatively new, we can’t be sure there aren’t any long-term effects to people who breathe in someone else’s vapour. But this is unlikely to be harmful.
Passive vaping is not the same as
passive smoking. This is because e-cigarettes do not contain tobacco.