Lay zucchini slices in a single layer on a paper towel. Sprinkle salt generously on top of each slice and let sit for 5-10 minutes.

Pat the zucchini dry with a paper towel or cloth then place zucchini in a large bowl.

Add olive oil and garlic powder to the bowl. Toss the zucchini until well combined.

Arrange the zucchini slices in the air fryer either on trays or in the basket in a single layer.

Air fry at 400°F for 15-20 minutes. Check zucchini around the 10 minute mark and remove any chips to a cooling rack that are crispy or starting to turn golden brown around the edges.

Continue air frying until each zucchini chip is crispy and golden around the edges. Cool chips on a wire rack for a few minutes before serving to help retain crispness.