[LorenPechtel]

What lights are you talking about? UV capable of disinfecting isn't something you want to be looking at. (Are you perhaps thinking of the bug-zapper lamps that are sometimes described as UV? Way up at the top of the visual spectrum, a lot of bugs go for them. But they're just a lure to get the bug between the high voltage wires that actually kill it.)

The only disinfecting UV lights I've heard of for use in occupied areas are hanging things that only point up where nobody's going to be exposed. I have heard of some research for safe UV lights that are high up in the UV, they actually still burn but without enough penetration to get through the dead skin layer.