Q&A for How to Remove Fog from a Car Windshield

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What causes fog on inside of windshield?

Ed Beery
Automotive Specialist
Ed Beery is an Automotive Specialist and the Owner of InTechgrity Automotive Excellence based in Denver, Colorado. With more than eight years of experience, he specializes in providing maintenance and repair services for both individuals and companies. Ed and the InTechgrity Automotive Excellence Team are approved by the American Automobile Association (AAA) for repairs and are Automotive Service Excellence (ASE) certified.

Ed Beery

Automotive Specialist

Expert Answer

The fog on a windshield is condensation that occurs when moisture condenses on the warmer side of a surface—in this case, your windshield. The temperature difference determines which side of the windshield the condensation collects on.

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Question

How do I stop my car windows from fogging up?

Ed Beery
Automotive Specialist
Ed Beery is an Automotive Specialist and the Owner of InTechgrity Automotive Excellence based in Denver, Colorado. With more than eight years of experience, he specializes in providing maintenance and repair services for both individuals and companies. Ed and the InTechgrity Automotive Excellence Team are approved by the American Automobile Association (AAA) for repairs and are Automotive Service Excellence (ASE) certified.

Ed Beery

Automotive Specialist

Expert Answer

You can keep your car windows from fogging up by keeping a window open about an inch or so to allow outside air in and prevent fog from building up. Don't do this if the outside temperature is colder than the inside of your car (especially if the outdoor temperature is at or below freezing).

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Question

How do I remove the fog best when neither my A/C nor heat works? Also, my windows leak, allowing rain in and building up more moisture.

Ty_097

Community Answer

To remove fog/moisture, get a room temperature cloth and wipe the inside of the windows with it. If your windows leak, get a window screen cover (the ones you normally use to stop frost) and put that on.

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Question

How do I get rid of fog on my windshield?

Drew Hawkins1

Community Answer

You can quickly get rid of fog on your windshield by turning on your defrost vent with cold air or by rolling down your window.

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Question

How do you stop condensation on inside of car windows?

Drew Hawkins1

Community Answer

Stop condensation on the inside of your car windows by lowering the temperature inside of your car. Turn your air conditioning fans on the highest setting and the temperature on the lowest setting to cool down your car.

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