From what I know UV will kill all virus BUT UV can be very dangerous to humans so a remedy can be more dangerous than the initial problem.
You put it in the air handler, so it treast the air as it passes.
I have a small one in my house, to help kill the mold on the ac coils.
You can by them for rooms, i think they have timers, you turn them on and evacuated the room until they are done.