Is the MAX button in a car for defogging?
2 Answers
Yes, the MAX button in a car is for defogging. Here are some related methods for defogging: 1. Using the car air conditioner: Adjust the air vent to the windshield position, turn on the air conditioner, let the compressor work, and rotate the temperature knob to the warm air position. This can both defog and provide warmth. 2. Using anti-fog spray: Apply "car glass anti-fog spray" (such as Fog Fighter) to the inner surface of the car glass and wipe it clean. This not only removes dirt from the glass but also forms a thin transparent protective film on the glass surface, effectively preventing water vapor from condensing on the glass and forming fog. One application of this spray can prevent fogging for about 10 days.
That day, I was driving my old Camry to drop the kids off at school, and the windshield was completely fogged up. In a hurry, I pressed the MAX button, only to be hit with a blast of cold air that left the kids shivering. Later, I figured out that this button activates the forced cooling mode, which runs the AC at full power. For defogging, the FRONT button paired with warm air works much better, as the principle is to use warm air to dry the moisture on the glass. With older cars like mine, you need to turn on the AC first and then adjust to warm air for defogging. If the windows fog up from the inside on rainy days, remember to turn off the recirculation mode for better results. Nowadays, newer cars have a front defogger button with a fan-shaped icon that you can press directly.
