I've posted in a few places about this but there is a smell in just one of the rooms of an apartment I moved into that has not aired out in several months. I believe it's a kind of chalky, almost like there is powder in the air. I've had the fan blowing everyday and when I get home and I open the window when I get back from work as well to blow fresh air in. The smell dissipates but when I close the door for 30-60 minutes, the smell is back as strong as ever. I've also tried mopping (with fabuloso) every nook and cranny including the ceiling, closet, walls, everywhere but 2 days afterwards when the fabuloso scent is gone, the chalky smell is still there.
Here are pictures of the room http://imgur.com/a/5FQ8J
The super and landlord aren't sure what it could be. I'm not sure what to do now or where to go from here.