In the RO water purifier, a UV chamber is used. This item makes use of UV technology. UV Chamber uses ultraviolet germicidal irradiation to operate. The UV-C used for this form of disinfection has a wavelength range of 200 to 280 nm. Microorganisms like bacteria, viruses, fungus, and other microbes can be killed by the electromagnetic energy that UV light produces. We have the most affordable prices for this product.