How to stop car windows from fogging up in winter

Driving your car in the chilly winter months means having to deal with fog on your windows, which can make it hard for you to see the road ahead clearly.

Let’s look at some of the things you could do to help prevent your car windows from fogging up and save yourself some hassle this winter.


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How to stop your windows and windscreen fogging up


Keep your windows clean

Keeping your windows and windscreen clean is one of the most important things you can do to help keep the fog at bay. Dirt or any sort of residue on your windows can attract moisture and trap it in, making it a breeding ground for fog.

Keep your windows and windscreen fog free this winter by cleaning them regularly using warm water, followed by an alcohol-based cleaner and dry them thoroughly with a microfibre cloth.


Use anti-fog spray

Anti-fog sprays are a quick and easy solution to your fog problems. They can be found online or at your local supermarket and work by applying a layer of anti-fog coating to your windows and windscreen to prevent water droplets and fog from forming.


Get a silica car dehumidifier

Dehumidifiers are a brilliant way to keep your car moisture free. They draw excess moisture from the air, helping to prevent condensation and fog on your windows. You can buy mini portable dehumidifiers or use a silica car dehumidifier.

Silica car dehumidifiers work in a similar way to the silica packets you find in clothes and bags, which are put there to remove moisture and prevent the material from becoming damp. Car silica dehumidifier packets work in the same way by removing excess moisture from the air, helping to keep your windows fog-free.


Remove all liquids from your car

Make sure to remove all liquids and damp items from your car, such as hot beverages and wet umbrellas. Leaving such items in your car can cause humidity and therefore cause your windows to fog up.


Demist your windscreen

It’s important to know how to demist your windscreen to help prevent a build-up of moisture that can lead to foggy windows. Your car may have a demister button that directs airflow towards the windscreen to help clear condensation, or you may have to wipe the windscreen with a demisting spray and microfibre cloth.



Call a mechanic

If you’ve tried all these tips and still have issues with excess fog, you may want to get in touch with your mechanic, as it’s possible there is a problem with your car’s heating or air conditioning system, or you may have a crack or leak somewhere in your car that could be letting humidity in.





Make sure you’re protected on the roads this winter – take a look at Asda Money’s car insurance policies to find the right level of cover for you and your car.

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