I got this as a gimmick, wanting to sanitize stuff from COVID and everything else.
The service is small and lightweight. The instructions tout this as something you’d use everywhere – on a plane, but probably not at the grocery store – but in some places it’s probably not practical because you hold the wand about 1/2 inch above the surface for ~30 second. Sanitization takes a long time with a wand this size.
Now, I trust the science of UV, but what “sold” me on the effectiveness of the product was test card included with the wand. After using the wand, the card says something like “disinfected”. Of course, I grew up in the 80’s when every kid has a black light and make funky paint designs that’d magically appear.
I think this is a good product, and it’s probably cleaning your stuff.