UVC sanitation devices use UVC light in the 254nm wavelength to disinfect surfaces and the air. UVC light is ultraviolet radiation in a short wavelength between 185nm to 280nm (nm = nanometer) range. This range of light is used primarily for germicidal action to break down RNA and DNA, preventing replication of pathogens. Sun Supplies UVC devices utilize the optimal germicidal wavelength of 254nm in three different configurations depending on the needs of our clients: Handheld units, Upright mobile units or Furnace duct units.