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How to Keep Your Windshield Fog-Free

Contributor
By eHow Contributing Writer
(15 Ratings)

Today's cars make it easy to keep the windows from fogging up. Using the defrost option and following these steps can help clear the view.

Difficulty: Moderately Easy
Instructions

Things You'll Need:

  • Cleaning Cloths
  • Cleaning Cloths
  • Glass Cleaners
  1. Step 1

    Keep windows clean by wiping down the windows every two weeks with glass cleaner. Vapor from interior plastic forms a film inside the windows that dims visibility and attracts moisture.

  2. Step 2

    Cut down moisture by shaking water from your umbrella and knocking snow from your shoes before getting in your vehicle. With less moist air inside, there's less work for the climate control system to do.

  3. Step 3

    Don't recirculate air with the recirculation option on your climate control. By not allowing fresh air inside the car, the "old," warm, moist air stays inside longer; when it hits a cool glass surface of your window, your windshield fogs.

Tips & Warnings
  • Open the driver's side window a little. It won't defog the windshield, but it will help pull dry air over the side window, which can be a help, especially if your car doesn't have defrost vents for the side windows.
Who Can Help

Comments  

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themenz said

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on 7/6/2008 Fastest way to defrost a car windshield is to turn on your air conditioner. Then turn the vent system to "defrost" blowing air across your winsdhield. The air conditioner will remove the water from the air so that there is no moisture which can condense on the cold windshield.

If it gets too cool, turn on the heater too. Now you have warm dry air inside your car. And no fog on your glass. (Notice the pool of water that forms after you park your car? That is the water your air conditioner removes from inside the car.)

Thidj said

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on 9/4/2007 I have an old Buick. The shaving cream works very fine. Maybe not with Aloes in winter. I use a glass cleaning cream product called Bonami. It can be wiped really fast and makes no slide. Nice article thought. I didn't know too much why it sometimes suddenly happens.

ircurious said

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on 6/9/2007 Is it possible for your windows to fog up if it is 100*F outside? I mean, if you don't have the AC on and you are making out in a car...I've always wondered. Technically how long does it even take for the windows to fog up after you've been making out? Seriously, someone should do a study on this...I'm sure they'd have a lot of fun and many test subjects for an experiment of this type. Might even win a Nobel Prize! :D

ircurious said

Flag This Comment

on 6/9/2007 Is it possible for your windows to fog up if it is 100*F outside? I mean, if you don't have the AC on and you are making out in a car...I've always wondered. Technically how long does it even take for the windows to fog up after you've been making out? Seriously, someone should do a study on this...I'm sure they'd have a lot of fun and many test subjects for an experiment of this type. Might even win a Nobel Prize! :D

ircurious said

Flag This Comment

on 6/9/2007 Is it possible for your windows to fog if it is 100*F outside???? And technically how long does it take for your windows to "fog up" when making out in your vehicle? Oh, and what's BEST prevention technique for this type of occurance?

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