UV water purification is a method of water treatment which uses ultra-violet light to reduce microorganism such as germs, bacteria, microbes, algea, etc. in water. Ultraviolet water purification is a simple but effective process that destroys around 99.99% of the harmful organisms in water. There is a lamp inside the purifier that produces short wave UV radiations. These radiations irradiate the water and penetrate the cells of bacteria and viruses, destroying their ability to reproduce. The microbes and organisms fail to multiply and eventually die.