It is scientifically proven that ultraviolet rays destroy the DNA and RNA of bacteria and viruses, and that these radiation are effective against pathogenic microorganisms responsible for cholera, hepatitis, poliomyelitis, typhus, cryptosporidium and many other bacterial, viral and parasitic diseases. By killing the organisms and making them lose their ability to reproduce, UC rays can effectively and quickly sterilize any type of surface. This technique is increasingly used in healthcare facilities to disinfect patients and operating rooms.