Add Yahoo as a preferred source to see more of our stories on Google. Purple light from a small UV flashlight - Vlad Kazhan/Shutterstock What if we could turn off the lights, flip on a flashlight, and ...

Ultraviolet technology isn’t new; it’s been used in hospitals, research labs, and other areas that need to be germ-free. UV light kills up to 99.9 percent of germs, bacteria, and viruses—and that may ...

Add Yahoo as a preferred source to see more of our stories on Google. You may not like what your UV flashlight shows you, but it can help you keep your home or ...

The stealthy new coronavirus has turned face masks into ubiquitous accessories, and that means millions of Americans are looking for ways to keep them clean. Can ultraviolet light do the job? Ideally, ...

While you may think of UV lighting as useful primarily for making blacklight posters glow, it does have some practical household uses as well.