(May 22, 2020) As of this writing the world in the grips of a Pandemic, the COVID-19 pandemic caused by the SARS-COV-2 virus that is killing people around the world. This disease easily spreads, especially in areas where there is a high density of people in close quarters. This makes public spaces in large cities a potential danger zone. The mass transit systems we need to decrease traffic congestion are potential vectors for spreading not just the COVID-19 virus, but any other pathogen. An infected person could easily get on a bus, cough a lot, wipe some mucous on a seat-back, etc, leaving behind infectious pathogens that will be picked up by the next person to sit in that seat. What if there were an easy and inexpensive way to disinfect public spaces to reduce this risk?