... . 3.Hospitals, various laboratory and high levels of pathogenic body water disinfection. 4.Households building, residential, office buildings, hotels ... as chlorination, ozonation, etc….UV light does not add anything to the water ,such as ,undesirable color ,odor , taste , or ... output energy of low-pressure mercury UV lamp UV DoseThe units generate a UV dosage of at least 30,000microwatt-seconds ...