Reusable water bottles are key for staying hydrated, and there are so many awesome ones to choose from, each designed to suit a particular need. However, one use-case we haven’t covered yet is a bottle that solves the dual problems of occasional smelliness and generally being a breeding ground for bacteria.

Not to worry, because there are now self-cleaning water bottles that have UV lights in their caps, which periodically activate to obliterate the molecular bonds holding together the DNA of bacteria and viruses, thereby disinfecting the bottle’s contents and neutralizing funky odors. It honestly feels a little magical, even though I know it’s pure ⚡SCIENCE⚡.

The lid on the LARQ Bottle in particular holds enough charge to work for up to a month before needing to plug in, which it does via an IPX7-rated waterproof micro-USB connector.

You should still wash your bottle by hand once in a while, but the UV light makes it so you can attend to that mildly annoying task a bit less often than usual, and I’m all for that. Also keep in mind that the UV light doesn’t remove heavy sediments, so you’ll want water that’s at least clear to the eyes, not something out of a dirty stream or whatever.

You can get the insulated LARQ bottle in 17 oz ($99) or 25 oz ($118) sizes, both in a variety of color options.