Books should not be returned to their shelf location until the space is declared completely free of mold and the cause identified and rectified. Affected surfaces in the room can be washed down with liquid bleach (Lysol), but this should be completely dry before the room is again occupied.

Following the return of books to the shelf, the room should be inspected periodically to ensure that mold has not returned. HVAC components should be checked, especially in vent areas, and HVAC filters changed on a regular basis. In the absence of HVAC, ensure that air circulation is improved.