In the 1970s, heat pumps were touted as the energy efficient HVAC systems of the future. New markets typically have new problems, and for heat pumps the nature of the problem related to odors. A particular foul smell was so prevalent that the moniker Dirty Sock Syndrome was coined and universally accepted.

Although UV-C is simple, many contractors are mystified about how UV-C works and how to apply it cost-effectively. These aspects and other misunderstood issues are addressed here .