7 Ways to Deal with Foggy Car Windows

The most annoying thing about driving when it rains is that the car window fogs up. Car windows fog up due to the temperature difference between the inside and outside of the car, causing a canvas of dew that blocks the view.

If not addressed immediately, it can certainly increase the risk of accidents because the driver may have difficulty seeing the road or surrounding objects clearly. Apart from that, dew on car windows can also affect the performance of the defogger and demister systems.

Causes of Foggy Car Windows

The causes of foggy car windows are when the air outside is colder than the temperature inside the car, high humidity in the cabin, the ventilation or AC system is not optimal, the glass and door seals are leaking, or air circulation is not optimal.

This condensation process, called condensation, occurs when gas or water vapor changes to liquid or solid form due to a decrease in temperature and sticks to the cold surface of the car glass.

Foggy car windows must be addressed immediately to prevent danger. Because when dew appears on your car window, visibility will decrease. You will have difficulty seeing the road, other vehicles, or traffic signs, and your driving reaction time will tend to be slower.

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How to deal with foggy car windows

After knowing the cause, now is the time for us to discuss how to deal with foggy car windows. This is done of course to reduce and even eliminate the amount of dew that appears. The steps are as follows.

1. Turn on the AC

Activating the AC or car cooling system is the first way to deal with foggy car windows that you can apply. AC can remove moisture from inside the car and reduce dew on the glass.

2. Use Defogger

The next way is to use a defogger or defroster. A defogger is a system in a car that functions to warm up foggy glass and remove dew on the windshield, rear window or side glass of the car.

Defoggers are usually connected to the car’s heating system and can help reduce condensation quickly. So, make sure your car’s defogger is working properly and use it when needed.

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3. Using Wipers

When the car window fogs up, wipe it and clean it with a wiper. As is known, a wiper is a car component that functions to clean car windows from water and dew.

For optimal cleaning, you can fill the wipers with windshield cleaner and then turn on the wipers to remove the moisture.

4. Open the window slightly

When the weather is humid or there are many people in the vehicle, you can open the car window slightly. This is useful to help balance the temperature inside and outside the cabin, as well as reducing humidity in the car.

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5. Use Anti-Fog Liquid or Hair Shampoo

The next way to deal with foggy car windows is to use anti-fog liquid or hair shampoo. Apply anti-fog liquid according to the product guide instructions or hair shampoo to the surface of the car window without mixing with water.

6. Clean the car window regularly

An equally important tip is of course to clean your car windows regularly. This is done so that there is no dust or dirt that can absorb moisture which could later worsen the dew condition.

Use a good glass cleaning fluid and wipe the glass thoroughly to ensure the glass is clean and clear. After that, you can dry it with a microfiber car cloth so that the stain can be removed completely.

Tips to prevent car windows from fogging up

After knowing how to deal with foggy car windows, the next step is to prevent or reduce dew from forming on the car windows. Here are tips to prevent car windows from fogging up that you can try.

1. Using Silica Gel

The last way to prevent car windows from fogging up is to use silica gel. Silica gel is a small substance usually found in small pouches in the boxes of new shoes or other products.

You can place several packs of silica gel in areas that tend to fog up, especially near glass. Silica gel will absorb moisture in the surrounding air, thereby helping reduce the possibility of dew on the car window.

2. Check and Clean the Air Ducts

The next step is to check and clean the water channels in the car. Make sure the air ducts are not blocked by dust or dirt, and also check your car’s air filter regularly.

Cleaning the air ducts and replacing dirty air filters can help maintain good air flow in the car, thereby reducing humidity and helping to deal with condensation on the windshield.

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3. Check the Glass and Door Seals

A leaking glass seal can cause moist air to enter the cabin and increase the possibility of the glass fogging up. To prevent this, you must ensure that the glass and door seals are in good condition regularly, or replace them if necessary.

4. Make sure the drainage is good

The drainage system, especially in the area under the windshield, doors and sunroof, which is clogged with leaves or dirt, can increase humidity in the cabin. Therefore, make sure to clean the drains regularly, after heavy rain or parking under a tree.

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5. Park in the shade

Extreme temperature changes between the outside and inside of the car can cause dew to appear quickly. When your car is parked in the shade, the temperature of the body and glass becomes more stable, so that the humidity in the air doesn’t immediately turn into dew.

If possible, park in a garage or covered area to keep the windshield dry, especially at night or when it rains.

Well, that’s how to deal with foggy car windows easily and quickly. Every driver has faced this problem, but with a little attention and proper handling, we can keep our car windows clear and safe while driving.

If the dew is very thick and obstructs our view, it is best to stop in a safe place and wait until the dew is gone or use air circulation and a defogger to help remove the dew quickly.

By understanding why windows fog up, as well as taking the steps above and implementing preventive tips, you can drive with clearer and safer visibility.