Slice the zucchinis into 1/8-inch (3 mm) thin rounds using a sharp knife or mandoline for uniform thickness.

Pat the zucchini slices dry with a paper towel to remove excess moisture.

In a mixing bowl, toss the zucchini slices with olive oil until evenly coated.

In a shallow dish, combine the grated Parmesan, panko breadcrumbs, garlic powder, salt, and black pepper.

Coat each zucchini slice in the breadcrumb mixture, pressing lightly to adhere.

Lightly spray the air fryer basket with cooking spray.

Arrange the coated zucchini slices in a single layer in the air fryer basket.

Air fry at 200°C (400°F) for 8 minutes. Flip the chips and air fry an additional 5–7 minutes or until golden brown and crispy.

Remove and let cool slightly before serving. Repeat with remaining zucchini slices if necessary.