A refrigerator, portable ice cube maker, ice cooler, cold box, the cool bag is a special insulated container used to store food or drink to keep it cold. Refrigerators can be separated into three categories: residential, commercial, and shop refrigerators. All other types of refrigerators are sold in single units called compartments. Refrigerator manufacturers are constantly improving their appliances for improved performance. The basic components of a refrigerator include a compressor, condenser, and expansion valve.

Most modern ice coolers come with an automatic door seal, which is important for travel and on road trips because the car will not freeze while being transported. Some road trips may require ice, and an ice cooler is a perfect solution. Many people use ice coolers during camping trips and extended road trips when they want to take food with them instead of cooking it themselves. Ice coolers are also ideal for picnics.