Awọn atupa germicidal cathode tutu jẹ apẹrẹ pẹlu ọna kekere, igbesi aye gigun ati agbara atupa kekere, wọn gbejade 254nm (ọfẹ ozone), tabi 254nm ati 185nm (ti o npese ozone) lati pa awọn microorganisms, ṣiṣẹ nikan fun awọn iṣẹju pupọ, nitorinaa wọn lo ni lilo pupọ ni sterilizers. fun toothbrush, ṣe-soke fẹlẹ, mite Apanirun, ti nše ọkọ disinfection awọn ẹrọ, igbale ose ati be be lo. Awọn oriṣi meji lo wa ni igbagbogbo, Awọn atupa germicidal Linear (GCL) ati awọn atupa germicidal U-shaped (GCU).