This is the Fastest Way to Defog Your Windshield

This is the Fastest Way to Defog Your Windshield

defog car windshieldShutterstock

You’ve brushed off the snow, scraped off the frost and are ready to get on the road. But before you’re able to put your vehicle in drive, your windshield fogs up. Foggy car windows can happen when your car is in park or when you’re driving down the road. If your windshield fogs up, it’s not safe to drive. Here’s what you need to know.

Popular Videos

This easy trick will defrost your car window in seconds.

Your windshield can fog up no matter what the temperature, whether it’s summer or in the middle of winter. In fact, cold temperatures can create the ideal conditions for foggy windshields. That’s because the car’s occupants help to warm up the cold air inside the vehicle, and when the warm moisture hits the cold glass, fog and condensation occurs.

While wiping the condensation off the window may seem like the best idea, there is something else you can do to defog your windshield fast.

The trick is to turn on your vehicle’s air conditioning! Yes, even if it’s freezing cold outside, turn on the AC!

This is why you shouldn’t warm up your car in the winter before you drive.

Your car’s air conditioning system also serves as a dehumidifier, so it will remove the moisture inside the vehicle by circulating the air through the cold fins in the evaporator.

If your vehicle doesn’t have air conditioning, or it doesn’t work, turn the blower on high and open your windows a crack to allow moisture to escape.

Learn how to repair a rear window defogger.

Next time your windshield fogs up, crank up your car’s AC and make sure to aim the vents up, so the airflow hits your windshield. Your windows will defog quickly and you’ll be on your way.

These 12 clever hacks will help you remove ice, wherever it forms.

Plus: 13 Things You Need in Your Winter Car Survival Kit
1 / 16

Rachel Brougham
Writer and editor with a background in news writing, editorial and column writing and content marketing.