This project incorporated ultraviolet germicidal irradiation (UVGI) into transit bus air conditioning systems. UVGI was tested for its ability to provide protection against harmful virus, bacteria, mold, and airborne pathogens for passengers riding on and employees working on transit buses. In addition, this project evaluated reduced maintenance costs on bus air conditioning systems by use of UVGI.

This project included testing and evaluation of UVGI systems on transit buses. Testing was done in cooperation with Houston Metro in Texas. Tests performed on the buses included elimination of virus, bacteria, mold, and fungi. In addition, laboratory virus testing was conducted to simulate bus conditions. Additional tests evaluated coil cleaning effectiveness, airflow improvement, temperature improvements, fuel savings, and reduced maintenance costs.  View Report