I picked up one of these handy contraptions when things were just getting started. I forget if it is UVB but it was advertised as being germicidal.
I primarily use it go disinfect facemasks rather than throw them away after one use but I really don't like having to wear one if social distance is maintained. Find myself becoming slightly winded from my grocery expeditions.
It seems like these would be much less invasive than forcing everyone to wear muzzles.