We are offering ultraviolet water purifier, an ultraviolet purifier unit contains one or more germicidal ultraviolet lamps. This lamp produces ultraviolet wavelengths that are lethal to microorganisms. Approximately 95% of the ultraviolet energy emitted is at the mercury resonance line of 254 nanometers. This wavelength is in the region of maximum germicidal effectiveness and is highly lethal to virus, bacteria and mold spores