They're all a little different, but this works for me. When it beeps to say it's done, in a single arm motion I pull out the tray, dump the cooked food onto a platter, and then rinse the tray in the sink. The key is to get the tap water on there while the oils are still hot.

But temper your expectations. If you need your cooking implements to be squeaky clean, an air fryer will be a lot of work. If you're satisfied with your regular oven having a few bits of carbonized food bits here and there, then you'll also be satisfied with a "camp clean" level of air fryer cleanliness.