I just went back and checked and it is 100-300nm. Germicidal UV is 254nm, 185nm produces ozone, so the way I understand it is that the ozone is produced at 185 and then broken down at 254 into friendly oxidiser. It is supposed to be UVA, UVB, and UVC light they coined it UVX because it falls beteween UV and an Xray but with no penetrating radiation.
-TiO2 creates hydroxyl radicals and superoxide ions
-Rhodium converts nitric oxide to nitrogen and oxygen
-Silver speeds up the tio2 reaction by 3 x
-Copper does something to do with hydrogen and helps the TiO2 process as well