How to Defog When Driving on Rainy Days?
2 Answers
Methods to defog when driving on rainy days include: 1. Turn on the window defogging mode; 2. Open windows for convection to balance the temperature inside and outside the car; 3. Spray defogging agent on the glass; 4. Use the car's warm or cool air to blow on the glass. Precautions for driving on rainy days are: 1. Maintain a sufficient safe distance; 2. Use lights correctly; 3. Avoid harsh braking, sudden acceleration, or sharp steering. Car glass is manufactured by heating the glass in a furnace to near softening temperature, then sending it into air grids with varying cooling intensities for uneven cooling, creating different stresses between the main viewing area and the peripheral areas of the glass. This process produces zone-tempered glass.
Driving in rainy weather is most troublesome when fog obstructs the view, and I've tried many methods. Turning on the air conditioning is the easiest solution—just press the front defogger button, which automatically activates the AC and maximum fan speed, clearing the fog in two to three minutes. If the fog is light, cracking open diagonal windows slightly also works well, allowing humid air to circulate out. For long drives, spraying anti-fog spray on the interior of the windshield beforehand, like those car-specific sprays, can prevent fogging for most of the day. There's also a DIY method: wiping the glass with a mixture of dish soap and water, which leaves an anti-fog film once dry. Remember to switch back to external air circulation after the fog clears, or the car will feel stuffy. Avoid wiping the windshield with a towel while driving—it's too dangerous, especially on highways.
