Apartment is not for smokers but previous guests have covered the smoke sensor so they could smoke in the living room (we have a photo). Three of us were in the apartment (2 adults and 1 kid), and sleeping in the living room in a small foldable bed was unbearable (besides the discomfort of the bed) because of the cigarette smell. Carpets and furniture were soaked with the cigarette smoke smell. We reported this to the owner and nothing was done - even the cover on the sensor remained on it.