These two experts say they wouldn't recommend them.

Makers of UV sanitizers claim their products can sterilize anything in minutes. Many say that their sanitizers can kill up to 99.99% of germs on whatever object you put into the device's UV radiation. But do the UV sanitizers actually work? Here's the lowdown. 

First of all, what is UV radiation?

UV stands for ultraviolet, a form of electromagnetic radiation. The most common form of UV radiation is sunlight, which produces the three main types of UV rays: UVA (which is linked to skin aging), UVB (which can cause sunburn), and UVC (which is blocked by the Earth's atmosphere before it can even reach us). It's UVC—the highest-energy UV ray of the three—that's used in UV sanitizers.