I think the fresh-keeping refrigerators of big brands are not IQ tax, but have certain technical content. Not long ago, my family changed to Rong Sheng Ion Pure Flavor Series 609, which truly experienced the excellence of the fresh-keeping refrigerator and instantly shattered the fresh-keeping function of the old refrigerator at home! The following can give you a brief introduction of some differences between Rong Sheng Ion Pure Taste Series 609 and ordinary refrigerators. First of all, the fresh-keeping principle of Rong Sheng Ion Clean Taste Series 609 is to make the cold air inside the refrigerator more uniform by the way of moist natural wind+360 ambient cooling and air supply, so as to reduce the temperature difference in the cabin and keep the food in a more stable and balanced temperature environment. Coupled with the comprehensive upgrade of multi-channel micropore air supply, the shelf cooling is more uniform and the humidity in the refrigerator can be well supplemented. Fruits, such as peaches and mangoes, are easy to lose water and become wrinkled if they are put in an ordinary refrigerator, but they can be kept fresh and moist for several days in a quiet refrigerator, just like when they were first put in, and they taste good. In addition, Rong Sheng Ion Clean Taste Series 609 not only has powerful fresh-keeping function, but also has good energy-saving performance, reaching the national first-class energy efficiency. Calculate, the daily electricity consumption is less than 1 kwh, so don't worry that the refrigerator with more than 600 liters will bear the monthly electricity bill. Compared with my previous ordinary refrigerator, it can not only store food for a longer time, but also consume less electricity. I suggest you personally check Rong Sheng Ion Taste Purification Series 600.