Where is the cold air conditioning switch on the old Mazda 6?

[AmirLee]

The cold air conditioning switch on the old Mazda 6 is located on the middle AC button on the panel. Below are the specific introductions to the car air conditioning's internal and external circulation: 1. External Circulation: External circulation refers to drawing air from outside the car, directing it into the air conditioning system for heating or cooling, and then blowing it out through the vents. Essentially, external circulation replenishes fresh air to improve the air quality inside the car. It is used for defrosting in winter or defogging in summer because the air drawn from outside has higher oxygen content and is drier, making it more effective for defrosting or defogging. 2. Internal Circulation: Internal circulation draws air from inside the car, creating a cycle of airflow within the vehicle. Its main function is to promptly and effectively block external dust and harmful gases from entering the car. It helps warm up the car faster in winter and cool it down quicker when the air conditioning is on in summer. It can also be used during smoggy days. Internal circulation maintains the internal air cycle, helping to better preserve the temperature inside the car.