What to Do When Car Air Conditioning Causes Water Droplets on the Windshield?
3 Answers
You can use a long-lasting car anti-fog and anti-rain spray. Here are the relevant details: 1. Function of anti-fog and anti-rain spray: It forms an anti-fog film on the windshield and rearview mirrors, effectively preventing fog formation. 2. Principle: When moist air inside the car comes into contact with the cooler windshield, the water vapor in the air condenses due to the temperature difference, gradually forming droplets that eventually gather into fog on the glass. Therefore, as long as there is a significant temperature difference between the inside and outside of the car, or if the humidity inside the car is too high, fogging will occur.
I've been driving for many years and found that air conditioning causing water droplets on the windshield is a common issue, especially when starting up in cold, humid weather. The temperature difference causes the cold air from the AC to condense into droplets when it meets the warm glass, just like the fog on a refrigerator door. To solve this, first turn on the defogger function - that's the button with the fan-shaped icon. Then increase the fan speed and set the airflow direction toward the windshield, which helps evaporate the droplets quickly. In summer, you can use some cold air to reduce humidity; in winter, use warm air to dry it out. Before parking, turn off the AC to balance the temperature inside and outside the glass, which reduces condensation. Also, clean the interior glass surface with a clean cloth to remove grease, as dirt tends to attract moisture. Remember, safety first - these droplets can blur your vision, so always deal with them before driving. Don't rush onto the road. These methods are simple and effective - I use them daily to maintain clear visibility.
On the way to and from work, the car windows often fog up, especially after turning on the air conditioning, with water droplets sticking to the windshield. This obstructs visibility and is extremely dangerous. I usually turn on the cold air as soon as I start the car, setting the fan to maximum to blow directly at the glass; or I press the auto button to let the system automatically adjust the temperature, avoiding excessive cold that creates a big temperature difference. The car's air conditioning should be cleaned regularly, as a clogged filter can worsen moisture issues. Personally, I've bought anti-fog spray, applying it to the inside of the glass, which works well and lasts for several months. Before turning off the air conditioning when parking, lower the temperature a bit to transition, avoiding sudden condensation. Remember these tips to save trouble and stay safe, especially when driving in the rain.
