The cilaka exhaust fan

Now you understand why i so tulan? The air from the next room is drawn to the guest room. And it's filled with second-hand smoke. Each time i go inside this room, i'll get a major headache. I cannot even go in there to locate an item in peace. If i need to work in here, i have to turn the darn thing off and air the room for at least half an hour. What a waste of living area, and not that we have much in the first place.