Where is the Corolla's air recirculation button?

[LeConnor]

The Corolla's air recirculation button is located in the center of the air conditioning vent control knob. Concept of air recirculation: Air recirculation refers to heating or cooling the air inside the vehicle and recirculating it back into the cabin, while fresh air mode allows outside air to enter the vehicle. Usage of air recirculation: Use air recirculation in environments with heavy traffic exhaust, dust, or smog. On highways, periodically switch from recirculation to fresh air mode - it's recommended not to use recirculation for more than one hour continuously. Manual air conditioning systems default to fresh air mode, so you need to press the recirculation button to activate it. Automatic air conditioning systems have both recirculation and fresh air buttons. Enabling air recirculation helps quickly lower the cabin temperature and prevents outside air and odors from entering the vehicle. Prolonged use of recirculation mode may cause window fogging.