How to demist your windscreen – and why wiping it could make your car unsafe while driving

A car expert has revealed how you can easily de-fog your windscreen – and why wiping it can be dangerous.
Condensation can cause significant visibility problems. Therefore, it is important that drivers know how to remove it safely.

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Luckily, an engine expert from Precise Auto Singapore took to TikTok to share a handy anti-fog hack.
They said, “If your car windshield is foggy, don’t wipe it with a cloth or tissue.”
“Not only is it ineffective, it also impairs driving safety.”
This is because wiping the water vapor on your windshield can cause it to smudge, especially if it is also dirty or dusty.
This, in turn, can further reduce visibility and make it more difficult to drive safely.
Driving with impaired visibility is considered a criminal offense in the form of driving without due caution and attention.
Drivers could be fined £100 and penalty points for this, so it’s worth clearing up the fog properly.
Instead of wiping it off, you can use your air conditioner’s built-in function to heat the mist.
First, you need to make sure that the system is switched to outside air intake mode, not recirculation mode.
Look at the air recirculation button, marked by the outline of a car with a curved arrow in it. If there is a light on the switch, press it to turn it off.
This means that the air conditioner draws in air from outside for heating, rather than repeatedly passing the same air through the cabin.
Next, press the anti-fog button, which is indicated by a small box with three wavy lines inside.
This pushes hot air out of a vent just below the windshield on the dashboard, heating the glass and causing the condensation to evaporate.
Social media commentators loved the handy trick.
One wrote: “That’s true. I tried to wipe it off but it got foggy, which is dangerous.”
Another added: “I thought everyone knew that.”


This comes after an electric vehicle expert warned motorists of five faults that could lead to repair bills piling up.
Meanwhile, another auto genius has revealed how to use a hidden button to open the boot from the front seat.

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