Mist/fog ?

[JBell]

Use the windscreen clear button on the AC then keep the AC on and it should solve it, very damp out at the moment

 

[keefysher]

I have an elderly Peugeot 206 and it was misting up terribly. Eventually realised that the rear windows weren't quite wound up tight. Corrected that and bought a bag of silicone (like the stuff they put inside packaging of TVs & phones) and left it on the dash. It completely solved the problem. Available on eBay or Amazon and wonderfully effective. You can pop it in the microwave to dry it out as necessary.

Silica Gel, not silicone. Can be dried out by putting in the oven after cooking your dinner, place on radiator indoors, in airing cupboard.

 

[JBell]

Silica Gel, not silicone. Can be dried out by putting in the oven after cooking your dinner, place on radiator indoors, in airing cupboard.

One of these

https://www.amazon.co.uk/Pingi-LV-A...=A3P5ROKL5A1OLE&sprefix=car+de,aps,142&sr=8-5

 

[LostKiwi]

You can also use an old sock (without holes!) filled with silica cat litter. A far cheaper way to do this.
5 litres of cat litter will cost £5.

 

[McDonald]

Silica Gel, not silicone. Can be dried out by putting in the oven after cooking your dinner, place on radiator indoors, in airing cupboard.

Thanks for the clarification. The product has worked wonders in my car.