Pat the wings very dry. Use paper towels to remove as much surface moisture as possible. Dry skin is the key to crisp texture.
Season with baking powder and spices. In a large bowl, toss the wings with the baking powder, salt, garlic powder, onion powder, smoked paprika, black pepper, and optional chili powder. Add just enough oil to lightly coat.
Preheat the air fryer to 390°F (200°C). Give it at least 3–5 minutes to heat up so the wings start crisping immediately.
Arrange in a single layer. Place wings in the air fryer basket without crowding.
If needed, cook in two batches for even browning.
Cook for 18–22 minutes total. Air fry for 10 minutes, flip, and cook 8–12 minutes more, until the skin is deeply golden and the internal temperature hits at least 165°F (74°C). For extra crisp, go to 185–190°F; wings stay juicy thanks to higher fat content.
Rest briefly. Let wings rest 2–3 minutes to set the juices and maintain crisp skin.
Sauce or season. Toss with your chosen sauce while warm, or sprinkle with a finishing pinch of salt and a squeeze of lemon if keeping them dry-rubbed.
Serve immediately. Hot and crisp is the sweet spot. Add celery, carrot sticks, ranch, or blue cheese if you like.