Cut your whole, skinless fillets in half so the pieces are thinner and smaller.
Put flour on a plate and whisk eggs in a shallow wide bowl. In a third shallow bowl or plate mix Panko with garlic powder and salt.
Preheat your air fryer to 400 degrees for 5 minutes.
Dip each piece of fish into flour, on both sides, shake off excess. Then dip into egg on both sides and then into Panko mix. Press mixture on to the outside on both sides of fish.
Place coated fish into air fryer basket that has been sprayed first with non stick spray.
Once you have one layer (do not overlap), close basket and cook for 4 minutes. Timing will vary according to how "well done" you want your fish to be and how thick your fillets are (thicker will take longer)