My experience seeing a few split and window systems over the years. The condenser fins and the catch tray gets very mouldy. The “filter” only catches large particles - the ones I’ve seen are usually made of some sort of plastic mesh.
Yes, I use a central ducted system. The currrent one got installed in 2019 - Daikin. It was to replace an older ducted system. Back then the controller was easy to communicate with an open API via HTTP. As I understand it, newer models use a controller that is not openhab friendly, and must communicate via the cloud , and worse, no open API even via the cloud. But please double check in case this is not applicable to you in Europe, hopefully they still have an open system. I have heard some people having success buying the older controller / adapter and using that. There’s a whole topic about it here somewhere.
There’s this: Daikin Onecta (Cloud) Binding [4.0.0.0;5.0.0.0)
Are you referring to a split system or ducted?
I was referring to the ducted system.
All split systems I know use a plastic mesh, probably what you’re describing.
The ducted systems here in Australia use a synthetic cloth filter type material which is washable. This is a picture of the filter material, which gets installed in an aluminium frame
In the USA, they use disposable paper filters like this
