How many liters do you usually buy for household refrigerators?

Generally speaking, 2-3 people use a refrigerator of about 220 liters, and 4-5 people use a refrigerator of about 300 liters, which is basically enough.

Refrigeration equipment that keeps a constant low temperature is also a civilian product that keeps food or other items at a constant low temperature. There are compressors, ice makers, cabinets or boxes for refrigeration, and there are storage boxes with refrigeration devices in the boxes. The volume of domestic refrigerators is usually 20 ~ 500 liters.

19 10 the world's first compressed refrigeration household refrigerator came out in the United States. 1925 Lido Company of Sweden has developed a household absorption refrigerator. 1927 the general electric company of the United States has developed a fully enclosed refrigerator. 1930, air-cooled continuous diffusion absorption refrigerators with different heating methods were put on the market. 193 1 year, a new refrigerant freon 12 was successfully developed.