Compared with metal ions, the bactericidal effect is more prominent. This is the first time that Bosch has transplanted the sterilization function of active oxygen into the refrigerator product line. The patented VOC (Volatile Organic Compounds) precision detector can continuously detect the refrigerator environment 7X24 hours a day, detect the odor at the initial stage of food deterioration, start the active oxygen sterilization process, purify the odor at the later stage, and cooperate with the independent refrigeration and freezing double cycle to create a healthy fresh-keeping storage environment. You can also detect the odor in the refrigerator in real time through the mobile phone.