Ultraviolet Sterilization
An ultra violet sterilizer is an electrical device that produces ultra violet energy that is used to destroy microorganisms, without chemicals. Water passes through the sterilizer unit, where microorganisms are exposed to a lethal dose of ultra violet light in the 254 nanometer range. Ultra violet light in this wave length inactivates a wide range of microorganisms including bacteria, viruses, algae, protozoa, parasites and mold spores.
This inactivation occurs as the ultra violet light scrambles the organism's DNA structure, making reproduction impossible. The intensity of the ultra violet light and the micro-organism’s exposure time to the ultra violet light are factors that influence which micro-organisms are inactivated. This is referred to as the "kill dose", which is simply the intensity multiplied by the exposure time.