We don't have a current policy, of the 19 people in my office, we don't have any smokers / vapers.
We did have this strange lad working for us for a bit, The Hippest Hipster you've ever met (although he hated the term so we stopped using it), American too, spent a few years traveling South America teaching kids English and somehow ended up here. He fired up this massive looking thing once in the smallest office in the building he shared with one of the directors, within 30 seconds our interim policy was decided on and it was classified as a paddling offence.
I don't like the smell of them, I know they're supposed to come in all sorts of flavours, but they all seem to smell the same. I believe the way the industry came from no where to huge in a few short years is suspect, as is the claims it's completely safe, or safer, or slightly less deadly than smoker - depending who you ask, I fear the true risk factor won't be known for many years, I hope they're as safe as they claim to be, but I have my doubts, until then, I’d rather not second-hand Vape.