For years, scientists have known germicidal UV-C disinfection as an effective method for disinfecting air, water, and nonporous surfaces. By itself, air filtration is not enough to protect people from exposure to viruses, including SARS-CoV-2, which causes the disease Covid-19
. When you combine proper HVAC filtration with other best practices, you can reduce the potential for airborne transmission of indoor air pathogens in your HVAC system.
Surface Disinfection in Commercial Air Systems
As air passes over wet coils, contaminants such as dirt, microbes, and particulates stick to their surfaces. This buildup creates an ideal setting for mold, bacteria, and viruses to thrive and spread through the air.
Contaminants that are in constant contact with UV-C rays kill the biofilm and organisms that collect on HVAC coils by penetrating their cell walls, preventing them from re-entering the air. SARS-CoV-2 is very sensitive to UVC energy and only requires a very low dosage to kill the virus.