Ultraviolet germicidal irradiation (UVGI) is the use of ultraviolet (UV) energy (electromagnetic radiation with a wavelength shorter than that of visible light) to kill or inactivate viral, bacterial and fungal species by damaging the Nucleic Acid Structure. The UV spectrum is commonly divided into UVA (wavelengths of 315 nm to 400 nm), UVB (280 nm to 315 nm), UVC (200 nm to 280 nm) and Vacuum UV (100 nm to 200 nm). The entire UV spectrum can kill or inactivate many microorganisms, but UVC energy provides the most germicidal effect. (ASHRAE J 2008 Aug; 50(8):28-36).

UVC wavelength of 254 nm is invisible. This radiation (in the UVC spectrum) causes mortality of microorganisms in a way that their DNA or RNA is distorted and hence they are destructed or inactivated and cannot propagate. The blue-ish light produced by germicidal lamps is only a by-product from visible spectrum. UV-C does not pass through Borosilicate glass or thick textiles or any opaque material, which can prove to be a good barrier to confine the UVC treatment to any specific area. This radiation only passes through quartz glass and special Teflon foils. The lamps used by UVMED are do not produce any ozone – which is a proven lung irritant and may proved to be especially harmful for enclosed environments which are typically the sites of application of such devices like Operating rooms, isolation wards, patient rooms, autopsy rooms, laboratories, hotel guest rooms, restaurant kitchens, corporate offices etc.