You'll probably get a surprise. If you camp anywhere with wind and dust they get full fast. I get window AC filters from Walmart or Amazon and cut them to fit (they're better quality and catch more) and then wash them out every two weeks. And we have three AC's so they each don't run as often.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, MorRyde pin box
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.