I just want one that can be cleaned inside. Several years ago I had 3 zones of a 4 zone mini split installed, and then after they filled up with mold and dust

I just want one that can be cleaned inside. Several years ago I had 3 zones of a 4 zone mini split installed, and then after they filled up with mold and dust in one year (thanks, "eco" mode) I discovered it's practically impossible to clean the blower inside. I did it anyway, by taking them all apart while still attatched to the lines, but I had to flex the lines as the units had to come off the hangers away from the wall to get the blower housing apart. This was obviously not something you do very many times before you spring a leak and I never did it again. It was also super ungainly and messy and required moving everything out from underneath each unit, which was super inconvenient since this incuded book shelves and dressers and wall mounted shelves etc. I also ended up getting cleaner on the bearings. One time, on year-old sealed bearings probably didn't hurt anything, but it's not exactly good to get bearings wet, especially regularly like if cleaning were actually a regular maintenance operation. The units were clearly never meant to come apart, and I can't understand, why not??? The plastic screen does not actually keep the unit clean. It helps but it's just a screen not magic.