... time: 3hrs 6) Timer range: 0 - 20hrs7) Supply voltage: 220V±10% (50Hz) 8) Structure of sterilizer ... water circulationsystem and air filtration systemApplications: 1) Medical supplies: operational instruments, injectors, transfusion systems, tubes ... , contraceptive equipment2) Medical appliances: endoscopes, heart pacemakers, artificial hearts, ...