There are approximately 55 million students and 7 million staff members that attend public and private schools every day in the US. With current global events, ensuring the health and safety of these individuals is paramount right now. UV-C kills over 90% of all known microorganisms and can be an important tool to combat airborne diseases. Adding UV-C to the existing HVAC systems may be one of the most effective ways to reduce disease transmission within schools and universities since it can work to inactivate pathogens 24/7/365 as air is cycled through the air handling units.
https://www.uvresources.com/blog/uv-light-uses-for-schools-and-universities/