Refrigeration air conditioning is a technology that cools indoor spaces by removing heat and humidity from the air. It works by circulating a refrigerant through a closed system of coils, where it absorbs heat from the indoor air and releases it outside. This process helps maintain a comfortable temperature in homes, offices, and vehicles. The main components of a refrigeration air conditioning system include a compressor, condenser, evaporator, and expansion valve. These parts work together to ensure efficient cooling. Common types of air conditioning systems include central air conditioning, window units, and portable air conditioners.