Which button to press for defogging car windows?

[JacksonMarie]

To defog car windows, press the defogger button. Other methods for defogging car windows include: 1. Wiping clean with a towel; 2. Turning on the car heater to clear fog; 3. Leaving a window slightly open to remove fog; 4. Using automotive glass anti-fog spray. Reasons for car window fogging are: 1. Temperature difference between inside and outside the car; 2. Window temperature being lower than outdoor temperature; 3. Temperature difference between both sides of the window. Car window maintenance methods include: 1. Using appropriate windshield washer fluid according to seasons; 2. Applying automotive window heat insulation film. Functions of car windows: 1. Shielding from wind and rain, sound insulation and noise reduction; 2. Reducing wind resistance and airflow guidance; 3. Protecting the safety of passengers.