This portable ultraviolet light is supposed to find otherwise invisible pee, poop, and other stains so you can get down there and clean them properly. My experience is that if you soak up the pee accident, it won't show under the light, which leads you to believe that it's not in need of a cleaning. Which is dead wrong, sweet pea. If we based our decisions on the stink-finder's accuracy, we'd have a skanky-smelling house that nobody'd want to visit. Your choice.

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