Fan in a plastic box with filters and lights...as expected. The filters and where the air enters the device is the whole back panel so you can't push it tight to the wall the air400 is a pretty big item so it being any distance away from the wall is pretty intrusive to the room space. Shipping with fed x is garbage it arrived 5 days past the expected arrival date even though it was "in town" for all 5 of those delays days.