Yep - and waiting a couple hours will allow most viruses to become “infertile”...if they intend to disinfect over night between shifts, just the normal wait would handle 99% of it...
I know they’re used for disinfection of hospital rooms occupied by c-diff patients (after discharge). Clostridium difficile reproduces in spores, which are much harder to kill than other bacterial forms. At night you can see windows illuminated by white flashes at a second or so intervals, as bright as a welder’s flash.