Preheat your air fryer to 400°F (200°C) or your oven to 425°F (220°C).
Pat the chicken wings thoroughly dry with paper towels to ensure the skin becomes as crispy as possible.
In a large mixing bowl, whisk together the baking powder, smoked paprika, garlic powder, onion powder, sea salt, and black pepper.
Add the chicken wings and avocado oil to the bowl, tossing vigorously until every wing is evenly coated in the spice mixture.
Place the wings in the air fryer basket in a single layer, ensuring they are not touching to allow for optimal airflow.
Air fry for 20-25 minutes, flipping the wings halfway through, until the skin is golden brown and crackling.
Transfer the hot wings to a clean bowl and toss with the sugar-free BBQ sauce until they are fully glazed.
Serve immediately while hot and crispy for the best texture.