The persistent problem of dental chair water and line disinfection is actually: in oral healthcare, the chlorine in tap water is removed during the filtration process, and the water no longer has an antibacterial efficacy, which leads to biofilm production. Biofilm contamination will be caused by the irregularity of the biofilm coming off from the inner wall of the pipeline and flowing through the pipeline, which will result in the risk of infection of the human body, as well as causing clogging of pipelines of medical equipment. The most effective way for Hazardous Oxygenated Water to avoid infection is to remove the biofilm source directly and completely.