content: They also sell sanitizing wands that are UVC for home use, pretty sure they don't use the far-UVC talked about in the article though.  Most of those wands use near-UV and don't do shit against any virus or bacteria. They are using cheap violet LEDs instead of the much more expensive UV LEDs. The easy way to tell them apart is to look at the LED package. If it is a metal package with a glass window, then it is likely the proper UV diode. If it's a plastic package, then it's just a violet diode. UV is absorbed by the epoxy resin LEDs are typically encased in so the real UV diodes must use a quartz window to transmit the UV-A/UV-B/UV-C radiation. The real ones also have an eerie blue-ish glow instead of the purple-pink glow of the near UV ones. Don't waste your money on any cheap UV sterilizers that use LEDs. Glass tube (clear quartz) lamps are the way to go but beware the ozone it will produce and the extreme risk of damaging your corneas with those kinds of lights. They work great, but they are truly dangerous.