The sun emits invisible light . This natural phenomenon is reproduced inside the chamber of the Delta UV ranges UV systems using powerful lamps, result of leading edge technology, that emit UV-C rays. At 254 nanometers, the optimum wavelength for destroying micro-organisms (viruses, bacteria, algae, yeasts, mould…), the UV-C penetrate to the heart of DNA (altering the DNA of the microorganisms in a process called thymine dimerization) and disturb the metabolism of cells until they are totally destroyed.
UV is effective at inactivating bacteria, viruses and protozoa such as Cryptosporidium and Giardia. All germs are thus deactivated (including Legionella, Cryptosporidium and Giardia) and cannot reproduce.
The UV chamber in Delta UV ranges are dimensioned according to the pump flow rate, as it is the combination of the contact time in the UV system and the power of the lamp(s) that will ensure that the necessary dose (expressed in milijoules per square centimeter or mJ/cm2) sufficient to eradicate 99.9% of the micro-organisms (bacteria, viruses, algae in suspension…) is received.