This product used once (24h) then laboriously cleaned and dried and given to the Salvation Army. A completely nonsensical device, the smallest cheapest fan is more effective! Or: this product is a cheek!

Have used the Arctic Air little and consequently a filter order was not necessary and cannot answer your question

I would rather not recommend it. It has a water tank that spills easily. The unit cools well for me, but it is close to the screen. I can't imagine that you can place it in the driver's cabin as well.

No, I find it too bright and too loud for sleeping, so I can't recommend it. It's only useful for cooling when you're sitting in front of it, e.g. when you're working on your PC or something.

This air conditioner is not like a fan. Cool air also comes out, but with this air conditioner the air is cooled down and evenly distributed in the room. However, 25sqm is too big. This air conditioner is only suitable for small rooms.