Your air conditioning works by adding cold air into your house.

• A. True
• B. Not sure
• C. It depends
• D. False

Answer: (D)

Air conditioning cools a space by moving heat out of the house, not by blowing in cold air. In the indoor unit, warm room air is blown across a cold evaporator coil. The refrigerant inside the coil absorbs heat from the air, cooling and dehumidifying it as moisture condenses on the coil. The refrigerant then travels to the outdoor unit, where that heat is released to outside air. The cycle repeats, and the system mainly recirculates indoor air rather than continuously introducing new cold air from outside. Because the function is heat transfer and removal, not importing cold air, the statement is not correct.