How to open the fog on the windshield before the car blows?

How to open the fog on the windshield before the car blows?

Generally speaking, it is necessary to turn on the defogging function key to blow fog on the front windshield of an automobile. Look for a button with a fan icon on the central control panel of the car, which is a one-button defogging button on the front windshield. Just press the defogging button on the front windshield and wait for a few seconds, and the fog on the glass will disappear.

Similarly, if a button with a rectangular icon is found on the central control panel, it is the defogging button on the rear windshield of the car. Press this button and the fog on the rear windshield will disappear. In fact, the principle of the windshield defogging function key is very simple. When we use the car in cold climate, because the temperature in the cockpit is higher than that outside, water mist will appear on the windshield of the car.

When the defogging function key on the vehicle is turned on, a small amount of cold air is applied to the inside of the windshield to make the temperature difference between the inside and outside of the windshield almost the same, and finally the fog on the windshield disappears.