How To Keep Car Windows From Fogging Up

in: Manly Know-How, Skills

• December 9, 2021

How to Go on Your Windshield From Fogging Up

Yous're driving down the highway and your car'due south windshield fogs upwardly, and then you blast the defroster. The fog goes away just so returns over again a few minutes later. You echo this process until you lot arrive at your destination.

The same thing happens to the machine's commuter- and passenger-side windows. The windows fog upwardly and then you can't meet your rearview mirrors, so you roll the windows down and then back up to duster the moisture off. Only and then the fog simply comes back again.

And on the fight confronting vehicular window fog, and its visibility-robbing brume, goes.

Fortunately, there's a way to escape this seemingly endless cycle of fog recurrence and attain driving nirvana. We share your exit strategy below.

Why Does Your Windshield Fog Upward?

To sympathize how to prevent your vehicle's windshield (and windows) from fogging up, it helps to empathise why they fog up in the first identify.

Fog on the within or exterior of your motorcar windshield is condensation that forms due to a difference in temperature and humidity nigh the glass. The nature of this differential varies according to the flavour of the year.

During the winter, window fog typically occurs inside of your machine. That's considering the temperature and humidity on the inside of your vehicle are higher than they are outside of it. All that hot vapor from the passengers' jiff condenses on the inside of the windows/windshield once it hits the cool glass.

When y'all experience foggy auto windows in the summer, the condensation usually occurs on the outside of the car windows. That'due south because the temperature and humidity on the exterior of your motorcar are higher than on the inside where yous've got the cold, dry out A/C running. Once the hot, moist summertime air hits your car's windows, condensation forms on the outside of the glass.

Knowing where the condensation is forming — inside or outside — will guide how you implement your preventive anti-fog measures.

How to Go on Your Windshield From Fogging Upward

Make clean your windows. The showtime step in preventing automotive fog is to give your vehicle'southward windows and windshield a prissy wipe down. Dirt and oils on the drinking glass will attract and maintain condensation. Clean your car's windows/windshield on both sides with some window cleaner and a paper or paper towel.

Apply an anti-fog spray. Anti-fog spray contains chemicals that prevent water from condensing on your glass.

Call back, if information technology's wintertime, the fog volition be forming on the inside of your windows/windshield, so brand sure to get a spray that'southward designed for interior glass.

If information technology's summer, you lot'll desire to apply the anti-fog spray on the outside of the drinking glass and y'all'll want to use a product designed for the exterior.

Thoroughly cleaning your windows earlier applying anti-fog spray is a big key in their efficacy, and so don't neglect the stride 1 recommendation above.

Use dwelling anti-fog remedies. If you don't want to go to the auto supply store or take a bottle of commercial anti-fog spray Amazon Primed to yous, there are some home remedies you can use to prevent fog from forming on your glass:

Shaving cream. I'm talking nearly the old-school Barbasol variety. Spray some on a towel and wipe on your glass. Wipe the glass clean with a make clean towel.
A white potato. Strangely enough, the starch and sugars in a tater can human activity as a fog repellent. But cut a potato in one-half and rub the exposed half on your windows/windshield. Wipe off any excess white potato juice, lest you leave a white coat of starch on your glass.

Turn off the recirculate button on your air-conditioner/heater. You've likely seen this button on your auto's console just may never have actually understood what information technology did. When the recirculate button is engaged, your vehicle uses air from within your vehicle for heating and cooling; it continually recirculates the same air, allowing it to be heated/cooled more effectively. When the button is off, the auto heats and cools using air brought in from the outside.

If condensation forms on the inside of your automobile during the winter, you can probably see why it would be a bad idea to recirculate this warm, moist interior air. Information technology just perpetuates the fuel that feeds windshield fog.

So brand sure the recirculate button is off.

Turn the heat and A/C on at the same time. When it'south common cold outside, yous want the heat on in your auto and then that y'all're warm. Just warm air causes condensation to form on your windshield. So how tin you stay warm without fogging up the glass?

Turn the A/C on at the same time equally yous crank upwardly the heat in your car.

The A/C will dry out the air. By reducing the wet in the warm air blowing in your auto, you lot reduce the likelihood of your windshield and windows fogging up.

Just make sure your car's A/C button is on when you crank the heat up. That'due south all there is to it. And no, this won't damage your motorcar'south air conditioning.

When all else fails, boom the defroster to the max. If you lot've done all these things, and yous nevertheless get some fog, you lot can always turn the defroster up to full boom. The warm, dry air volition evaporate the moisture on the interior of your windshield, defogging your glass immediately. This is a temporary fix, though. If the humidity is nonetheless high inside your car, you'll just get a foggy windshield once more. Make sure the recirculate push button is off, and endeavour re-cleaning your windows/re-applying anti-fog spray when y'all return home.