I think it'll be nice to find a way to air the reading rooms/library or use an air freshener each morning when they are cleaned. The reading room smells...maybe from stale air...which is easily noticed when you open the door. The windows are sealed in so there may be no way to ventilate rooms especially when they are frequently used.
Maybe it's the particular reading room am in...2nd floor. But from experience I feel the 2nd floor rooms often smell of stale air compared to first floor.
And the odor can be repulsive sometimes. Repulsive enough for me to turn back.
Just my observation/suggestion. I hope it can be changed.