Here are our top tips on demisting your vehicle’s glass surfaces as quickly as possible: If your car has air conditioning, ensure it’s switched on and the heater blast is directed at the windscreen.

Misting occurs by water vapour condensing on the screen – the air-con will dry out the air, removing any moisture.

Use this in conjunction with the heater. Hot air will dry the glass a little through evaporation, but the air will cool down and condense on the glass once more, so make sure the A-C is on to keep the atmosphere inside dry.

If your windscreen is iced over, heat is obviously better.

Your body is actually affecting your windscreen fogging up.

Have you ever noticed that when it's cold but your screen isn’t misty, it starts to steam over as soon as you get inside your vehicle? It’s the same as blowing on a piece of glass… Your body heats the air inside the cabin – as does your breath – increasing the amount of moisture it can hold.

This means when it comes into contact with your windscreen, it cools and condenses, forming a mist.

Start the heater off the cold, then slowly increase the temperature as the air dries out, rather than overloading the cabin with hot, wet air.

Try to find a comfortable temperature and humidity that doesn’t mist up the cabin.