We use UV lights to sanitize medical equipment already. I’ve heard of some offices implementing some UV solutions for cleaning desks and other office surfaces, but nothing new since. Why aren’t we using it in more places? It seems to me to be a cost effective, chemical free, generally *easy* way to disinfect surfaces and objects.
Some examples I thought of would be inside of a refrigerator. These can be full of germs if not properly and regularly cleaned (which many people don’t do) so why not have a UV bulb in there that turns on for a few seconds after the doors close? Or even a cycle that can be scheduled to run each night?
Another would be under cabinet lights in a kitchen. Kitchen counters can be notorious bacteria breeding grounds (the vast majority of food poising cases come from within your own home after all) so why not have some UV light strips underneath that could annihilate all the bacteria automatically?
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In the places you are thinking of, just disinfection isn’t sufficient. There is physical soil and grime that need to be wiped away as well. So if I’m cleaning the fridge your way I have to use my $5 bottle of soap/spray and paper towels first and then your likely very expensive UV light. If this is my house I have to own this thing myself because it’s way more trouble to share one between neighbours. And a $5 bottle of disinfectant is plenty sufficient for six months of cleaning the fridge and other surfaces. We only really need to disinfect surfaces where we’re going to place things that are going to go in our bodies, which isn’t most surfaces in a home.
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