A device for preventing build up and/or reducing biofilm pathogens from medical or dental fluids includes a housing defining a sanitizing chamber. A water conduit may extend through the sanitizing chamber and channel water from a water inlet to a water outlet. A gas inlet may receive pressurized gas and gas outlet may flow the pressurized gas from the inlet to the gas outlet through the sanitizing chamber. A light source emits light into the sanitizing chamber, the emitted light being incident on the water conduit and/or the pressurized gas in the sanitizing chamber and having wavelengths effective for removing biofilm pathogens from the water and/or the pressurized gas to sanitize the water and the pressurized gas. The sanitized water and gas may be used when performing medical or dental procedures. The device may further include a recirculation system for recirculating water from the water outlet to the water inlet.
