Preheat your air fryer to 400°F (200°C) to ensure a perfectly crisp exterior.
Pat the chicken wings thoroughly dry with paper towels to remove all surface moisture.
In a large mixing bowl, toss the wings with avocado oil, sea salt, black pepper, smoked paprika, cayenne, and garlic powder until every piece is evenly coated.
Arrange the wings in the air fryer basket in a single layer, making sure they do not overlap for optimal airflow.
Air fry for 18 to 22 minutes, flipping the wings halfway through, until the skin is golden brown and reaches your desired level of crunch.
Transfer the hot wings to a clean bowl and toss immediately with the sugar-free BBQ sauce until they are beautifully glazed.
Serve the wings while hot alongside fresh, crunchy celery sticks for a refreshing contrast.