Professional engineers and architects have legal responsibilities and liabilities as dictated by state statutes. 

Chapter 7 of the International Building Code (IBC)1 requires life safety dampers to protect duct and air transfer openings within building separations — fire walls, fire barriers, fire partitions, horizontal assemblies, smoke barriers, and smoke partitions. 

The recently publicized reports of children dying from Aspergillus fungal infections once again brings into question the culture around reporting errors in U.S. hospitals. 

Evidence directly tying the indoor environment to states of health or disease continues to emerge.