 | A large amount of hot air flows to the windows. | to remove ice and misting quickly. |
 | Air to windscreen, via defroster vent, and side windows. Some air flows from the air vents. | to avoid misting and icing in a cold and humid climate (to achieve this the fan level must not be too low). |
 | Airflow to windows and from dashboard air vents. | to ensure good comfort in warm, dry weather. |
 | Airflow to the head and chest from the dashboard air vents. | to ensure efficient cooling in warm weather. |
 | Air to the floor and windows. Some air flows from the dashboard air vents. | to ensure comfortable conditions and good demisting in cold or humid weather. |
 | Air to floor and from dashboard air vents. | in sunny weather with cool outside temperatures. |
 | Air to floor. Some air flows to the dashboard air vents and windows. | to direct heat or cold to the floor. |
 | Airflow to windows, from dashboard air vents and to the floor. | to provide cooling along the floor in hot, dry weather or warming upwards in cold weather. |