Function traits: 1. 10 years longer lifespan 2. Rectangular aluminum design with perfect diffusion 3. One button press sterilization 4. 15 minutes pre-heating 5. 20 minutes shorter sterilization time 6. Large usable volume (two sets of celoscopes in one load) 7. 25 times sterilization for each hydrogen peroxide cassette 8. Cassette sealing system and identification system to guarantee injection accuracywithout any waste. 9. Complete consumables supply 10. 32M memory card 11. 90% imported parts to guarantee sterilization effectiveness 12. Simple maintenance (only vacuum pump oil replacement per half a year or 1000 hours ) Sterilization effectiveness:600mm sterilization length for 1mm internal diameter stainless steel tubule(open ends).2000mm sterilization length for 1mm internal diameter polytetrafluoroethylene tubule(open ends)