Confirm that all chemical storage areas, high-volume copy rooms, etc. have:

deck-to-deck partition walls or hard-lid ceilings;
self-closing doors;
designated exhaust (no recirculation); and 
an exhaust rate of 0.5 CFM/SF, with a pressure differential in relation to surrounding spaces of at least 5 Pa (0.02 inches on water gauge), on average or, when doors are closed, 1 Pa (0.004 inches on water gauge), at a minimum.