In Summer, Should You Use Internal or External Air Circulation When Fogging Occurs?

[VonEmmanuel]

In summer, when fogging occurs, you should turn on the external air circulation. There are two methods to defog a car: 1. Roll down the windows: Allow air convection by partially rolling down the windows to let the cold outside air blow into the car, achieving convection between hot and cold air. This reduces the temperature difference inside and outside the car, helping to eliminate frost and fog. If the weather is extremely cold, you can intermittently open and close the windows; 2. Use the air conditioning defogging system: Adjust the "air outlet mode" to "defogging." This mode mainly controls warm air to ventilate towards the windshield and the front windows near the rearview mirrors for both the driver and passenger seats.