We haven't had issues with cigarette smoke before; it seems likely that a new tenant in another unit has started smoking. I will lodge a strong complaint with the management office. The location is exactly as listed, so I suspect there might have been a misunderstanding when the booking was made in a rush from abroad. It is definitely within a 200- to 300-meter walk from the airport bus drop-off point. The interior renovation was completed over a year ago, so the smell likely isn't coming from the unit itself; it may be drifting in from elsewhere. I didn't handle the cleaning this time, so I'm not sure of the exact situation, but I'm quite taken aback as this has never happened before. I will go and check it out myself. In any case, I apologize for the inconvenience.