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 ...

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, ...

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