Should You Use Internal or External Air Circulation When Driving on Highways in Summer?
1 Answers
When driving on highways in summer, use the internal air circulation. However, it's advisable to switch to external air circulation periodically to ensure proper air flow inside the vehicle and prevent oxygen depletion. Internal Air Circulation System: The air exchange channels between the inside and outside of the vehicle are closed. When the fan is off, there's no air flow inside the cabin. When the fan is on, the air drawn in comes solely from inside the vehicle, creating an internal air circulation. External Air Circulation System: In external circulation mode, the fan draws air from outside the vehicle into the cabin. Even when the fan is off, the vehicle's movement naturally draws in outside air, replenishing the cabin with fresh air.