I'm fairly new to airbnb. Three - that I know of - out of 125 guests have either smoked in my private apartment or refused to use the spray I make out of witch hazel, distilled water and oil of peppermint before reentering the apartment. I have a sign posted that this is a non smoking apartment and if the guests do so it will result in the next guest smelling it and giving a bad review, cancellations and a high cost of defuming. I have also asked that they must smoke outside to use the provided the spray I've provided at the entrance of the apartment . Smokers evidently refuse to follow my directions.
The sign has produced three good results. Guests smelling smoke have told me and understood that I'm doing everything i can about the situation and have still given me good reviews.
Oddly enough, they usually sense the aroma in the bedding. I'm sensing the tenant(s) didn't use the spray and went to bed after massive smoking with out showering. Yes, I wash the linens with detergent, vinegar and baking soda between every guest's arrival,
I have invested in multiple air purifiers and an ozone generating device. None seem to be working. At this point, I've lost more than $500 being an airbnb host. Although I'm mostly worried about bad reviews at the moment, I'm now also bothered by liability for lung disease claimed by guests. Any suggestions about smoking deteration, smell removal or liability insurance will certainly be welcome.