This is probably bunkum science … but at the price I thought I'd grab a couple. UV-C sanitizer, now I can be cool about my monkey friends touching my phone with their monkey paws.
RRP was meant to be $150 but can't imagine anyone would have paid that, they're $60 at Amazon just now.
Lifted from JB Website
Key Features
HoMedics® UV-CLEAN Portable Sanitizer Bag kills up to 99.9% of bacteria and viruses with no chemicals or mercury
Sanitises in just 1 minute — 10x faster than other sanitizers on the market
Utilises 4 UV-C LED lights to help maximize LED coverage
Employs the same sanitisation power as our Phone Sanitiser but is designed to fit larger items, like keys, jewellery, eyeglasses, remote controls, and more
Interchangeable phone and platform clips keep items in place to ensure optimal UV-C LED light exposure
Sanitises an amazing 18 uses per charge
So from ozb comments it seems you need particular leds for it to work rather than be a lie.
Someone else will have to pitch in with the details of how to know.