Slice zucchini into ⅛ -inch rounds. A mandoline works great. For best results, pat zucchini slices with paper towels to dry them.
In a small bowl, toss zucchini with olive oil, salt and pepper.
Turn air fryer to 400ºF. Put zucchini slices on rack in a single layer.
Cook 5 minutes, shake, cook an additional 5 minutes, shake and cook 2 minutes more, or until zucchini is golden brown and dry.
Video
Notes
If desired, you can prep the zucchini ahead of time. Slice it, put the slices between paper towels to drain, and refrigerate. You can do this up to a day in advance.