The same quality. From the perspective of product quality, there is no essential difference between refrigerators sold in physical stores and online stores. Both physical stores and online stores produce refrigerators by the same manufacturer, and the production technology and quality standards are the same. Moreover, home appliance brands will strictly supervise the quality of products they sell in different channels to ensure that the quality of refrigerators purchased by consumers is consistent. Refrigerator is a kind of refrigeration equipment to keep a constant low temperature, and it is also a civilian product to keep food or other items at a constant low temperature. The box body is provided with a freezer or freezer with a compressor and an ice maker, and a storage box with a refrigeration device. There are cooling pipes on both sides of the refrigerator. When the compressor works, it will generate heat, which will be circulated to the outer wall through the cooling pipe. Because the refrigeration capacity of the refrigerator is directly proportional to the heat to be emitted, long-term use will lead to fever.