i have one of these UV germ things to clean air. Plugs into wall socket. I think Germ Guardian.
I quite using it because of some health reason. Maybe cancer or maybe it can change DNA if you are too close.
Dont remember.
Just use it in the house when everyone is away at work. Turn it off upon arriving home?
We installed a UV system in our furnace - it zaps anything that just happens to find it’s way into the HVAC system.