Here's how these UV light sanitizers actually work. UV light is highly effective at killing germs The three main types of UV rays are UVA, UVB, and UVC. Because UVC rays have the shortest ...

"Waterless, antibacterial hand sanitizers are marketed as a way to 'wash your hands' when soap and water aren't available, and they are especially popular among parents of small children," says ...

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According to the Centers for Disease Control and Prevention, alcohol-based hand sanitizers can help reduce germs in some situations, but soap and water are more effective at removing many others.