What’s the Difference between Germicidal UV C 254 nm and Far UV 222 nm

UV light is used to successfully eliminate unwanted viruses, bacteria, mold and spores from surfaces and the environment. Although effective, this form of UV treatment, which traditionally leverages 254 nm bands, is known to be harmful to humans. Because of this, operators are required to wear protective gear when deploying 254 nm UV lights in buildings.

Advancements in UV technology addresses safety-related concerns associated with 254 nm UV lights by utilizing a different wavelength within the UV-C germicidal spectrum: 222 nm. This far-UV band is considered to be safer than 254 nm, as it does not impose the same devastating effects on the skin and eyes. According to published studies, the 222 nm band is just as effective in deactivating dangerous viruses and bacteria as traditional 254 nm UV light.

To better understand how these two germicidal UV bands differ, we published a white paper that provides an in-depth comparison of the two UV-C wavelengths!