Ultraviolet disinfection is a proven technique to treat water for drinking water. UV light provides rapid, effective inactivation of microorganisms through a physical process. When bacteria, viruses and protozoa are exposed to the germicidal wavelengths of UV light, they are rendered incapable of reproducing and infecting. The following purifiers are equipped with high quality UV light tube which is further enhanced by fine quartz tube to irradiate and treat the water with UV to give safe drinking water.