We have a choice of refrigerator models with varied temperature settings and additional features. A medical refrigerator with a temperature range of 2 °C to 8 °C and a capacity of 55 L to 1505 L is available. The 4 °C blood bank refrigerator uses the freon-free R134 refrigerant and has built-in high temperature sensors and an automatic temperature control module. The defrost system in a pharmacy refrigerator has a quiet operation and is user-friendly. The temperature range of a portable refrigerator is 2 °C to 8 °C, and it is very practical because it can be transported easily and keeps the contents stable and safe.