Pat dry cod fillets with paper towels. Set aside.

Set up breading station: place flour in one bowl, beaten eggs in a second bowl, and combine panko breadcrumbs, Parmesan, garlic powder, smoked paprika, and salt & pepper in a third bowl.

Dredge each fillet first in flour, then dip into eggs, and finally press into the breadcrumb mixture.

Preheat air fryer to 400°F (200°C) and let warm for 3 minutes.

Spray air fryer basket with cooking spray or brush with olive oil. Place fillets in a single layer and spray tops lightly with oil.

Cook for 10-12 minutes, flipping halfway through, until golden brown and fish flakes easily with a fork.

Check doneness; internal temperature should reach 145°F (63°C).

Transfer to plates and serve immediately with lemon wedges.