The Aquaray H2O is able to treat drinking water from 300 to 8600 m3/h (2 to 55 mgd). This reactor eliminates pathogens with a powerful dose of UV light delivered by strategically placed medium pressure lamps. The germicidal effect of the UV light inactivates most microorganisms such as bacteria, viruses and parasites. UV is known to be particularly efficient to inactivate Cryptosporidium Parvum and Giardia Lamblia.