This creation is a kind of plasma-based sterilization filter of related dental water of what and the water system of dental composite patient chair,Including biofilm filtration unit,Hydraulic pressure decompressing unit,Control circuit unit,Water flow sensing unit,Plasma-based sterilization control unit,Temperature induction unit,Pressure sensitive unit,When water by water inlet end enter device Hou,Just filtered through biofilm filtration unit,Hydraulic pressure decompressing unit,Water flow sensing unit,Entering back into plasma-based sterilization control unit becomes plasma-based water,Most Hou can export through pressure sensitive unit Hou; The cell membrane of bacterium in water is destroyed through plasma-based water energy produced by plasma-based sterilization control unit processing Hou as what,And have the effect for killing bacterium and pre- bacteriological protection formation,Therefore when what carries out dental diagnostic,Be avoided that patient,Dental Assistant,The staff of clinic or see examines doctor by bacterium infection contained in dental water or the fog of its generation.本創作係有關於一種牙科用水之電漿殺菌過濾裝置及牙科綜合診療椅之供水系統,包括生物膜過濾單元、水壓減壓單元、控制電路單元、水流感應單元、電漿殺菌控制單元、溫度感應單元、壓力感應單元,當水由進水端進入該裝置後,便經生物膜過濾單元過濾、水壓減壓單元、水流感應單元,再進入電漿殺菌控制單元成為電漿水,最後經壓力感應單元後即能輸出;由於經電漿殺菌控制單元處理後所產生之電漿水能破壞水中細菌之細胞膜,而具殺死細菌及預防細菌形成之效果,因此於進行牙科診療時,能避免患者、牙科助理、診所之工作人員或看診醫生受牙科用水或其產生之霧氣中所含之細菌感染。