There are currently various methods of cleaning air handling units. The most effective of these methods, however, is the proper use of UVC lights. What are these UVC lights and how do they become effective cleaning agents?

Ultraviolet light refers to a particular part of the electronic spectrum emitted by the sun. Specifically, it is found between 100 and 400 nanometers (nm), inclusive of the long-wave UV-A, the medium-wave UV-B and the short-wave UV-C. This short-wave UV-C or the UVC, meaning within the C band of 200 to 280 nm, is long considered for its germicidal applications. Its usage dates back to as early as the 1800. Referred to in some literature as the germicidal UV or at times as the “ultraviolet germicidal irradiation (UVGI), it is known for its capabilities to destroy bacteria and virus.

As cleaning agents, UVC lights eradicate molds and other forms of microbes. UVC lights also vaporize Volatile Organic Compounds or the VOCs and other harmful particles by penetrating into the coils of inside air handling units, something that cannot be done by other methods of cleaning. Even pressure washing could not penetrate the coils of these air handling units and wipe away the molds and the VOCs.

The use of UVC lights as cleaning agents comes as a less expensive alternative to other cleaning methods. For most residential utilization, one UVC light is enough. The functional use of one UVC light is estimated to range from 8,000 to 9,000 hours and since each unit consumes only minimal energy, it is deemed economical. Experts estimate that the cost of powering each fixture is well below $.12 per day.