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How To Remove Fog From Car Windshield In Winter?

Posted by Mariios on December 20, 2024

The most annoying part of winter driving, which happens very often, is scraping ice off the outside of your windshield in the cold, only to find that the inside is foggy and hard to see through. But don’t worry! To remove fog from car windshields in winter, turn on the heat to warm the glass or use the AC to dry the air. Open your windows a little to let moist air out, and aim vents at the windshield. To stop fogging long-term, check your car’s heating system, use moisture-absorbing products, and seal any leaks around windows or doors.

6 Preventive Tips to to Clear Foggy Windows in Winter

Clearing foggy windows in winter is important to stay safe while driving. If your car windows are already fogged up, here are some easy steps you can try:

1. Use the AC

It might sound strange, but turning on the air conditioner with the heat can remove moisture from the air. Fog happens when the air inside and outside the car has different temperatures. To stop the fog, make the inside air match the outside air.

Turn your car fans to the highest setting and make the air as cold as you can handle. This works fast but might make you feel chilly, so get ready to feel a little cold!

2. Turn On The Defrost Vent With Cool Air

Auto glass specialists always recommends turn on the defrost vent with cool air. The vent blows air right at your windshield. The cool air helps make the windshield the same temperature as outside. This helps clear the fog from your windshield.

3. Turn Up the Heat

Set the heat to the highest setting and aim the vents at the foggy spots on the windshield and side windows. The warm air will help clear the window fog fast.

4. Open the Windows

Open the windows a little to let the moist air inside the car escape and allow dry outside air to come in. Don’t open them too much, or you’ll let in too much cold air.

5. Change Your Air Source

Most cars have buttons to control the air inside. One button brings air from outside into the car, and the other reuses air already inside.

If your windshield is foggy, use the button that pulls air from outside. Look for the button with a car and an arrow pointing inside. Press it so the light turns on. Or, turn off the button with a car and a circular arrow inside. This stops the car from reusing the same air already inside.

6. Lower the Moisture Inside the Car

Fog happens when warm, wet air inside the car touches the cold windshield. Snow boots, wet gloves, or even hot coffee can add moisture to the air.

Your warm breath also makes the air moist. Of course, you can’t stop breathing, but you can keep wet coats or gloves in the trunk before driving. You can also wait to grab coffee until the air inside the car feels dry and balanced.

These simple tricks can help you see clearly and drive safely in winter! 

Causes of Car Windshield Fogging In Winter

Windshield fog showing up suddenly is a common problem in winter. It might seem strange, but it happens because of a few simple reasons, like:

1. Temperature Difference

Windshield fog happens because of different temperatures inside and outside the car. In winter, it gets cold outside, but the inside of the car gets warm when you turn on the heater. The car’s windshield stays cold from being outside. When warm air from the heater touches the cold glass, tiny water drops form. These drops make the windshield look foggy and hard to see through.

2. Dirty Windshield

If your windshield is dirty with dust, oil, or leftover cleaning stuff, moisture has a better grip on it. This makes the fogging worse and even more dangerous for driving.

Conclusion

Foggy windshields happen when warm, wet air inside meets cold glass outside. To remove fog from car glass turn on heat or AC, open windows a little, and aim vents at the windshield. Keep windows clean and use bags to soak up moisture. Always remember to let your car warm up before driving.

To prevent fog long-term, check your car’s heating system, seal window leaks, and open windows a little when parked.

For clear and safe driving this winter, trust Blue Diamond Auto Glass for expert windshield repair or replacement services. We offer high-quality services at the most affordable rates so you can stay worry-free and drive safely!

December 20, 2024
Written by
Blue Diamond Auto Glass
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