@Helen350
Being a mechanical services contractor in my working life Helen, my cottage has a ducted Hepa air filtration system which continually cleans up the cottage air and, although you are 100% correct, a smoker brings that smell with them, not just their bodies but their possessions as well, the filtration system easily copes with that, removing it before it contaminates our furnishing. We all know what it is like to find yourself in an elevator with someone who has just extinguished a cigarette.....it is just a dreadful smell. In fact that smell is worse that the smell of the actual cigarette smoke! But we have to be realistic, it's an addiction and a smoker is going to find some way of lighting up, no matter where they are.
I have no problem with them smoking outside, I have set up an under cover area and equipped it with an ashtray and a container of non offensive breath freshener which I instruct them to use before re-entering the cottage, and this seems to work ok Helen. I find none of them go out of their way to be malicious, they appreciate smoking is their issue and if you can demonstrate to them that you are considering their smoking issue, they will comply!
If we tell a smoker we don't allow them to smoke, we are discriminating against them and they could feel they have a right to complain. If we nicely offer them a physical reason why we simply can't accept them if they smoke because it will trigger an alarm, they will accept that and look elsewhere. They don't regard that as discrimination!
Apart from Amazon, cigarette alarms are available in the UK via and English supplier.....
Even if it was a dummy one on the ceiling with a no smoking symbol on it, the deterrent factor would be great enough to ensure your space remained smoke free. They would not want to run the risk of putting it to the test!
If anyone feels strongly enough about this smoking business it is definitely worth pursuing!
Cheers......Rob