Use wings refrigerated promptly and stored no longer than 3 to 4 days. Discard leftovers with an uncertain time-temperature history.
Preheat the air fryer to 350°F for 3 minutes if the appliance manual recommends it.
Place wings in one loose layer with small gaps. Brush only very dry plain wings with a trace of oil; do not add sugary sauce yet.
Air fry at 350°F for 4 minutes, then turn each wing.
Continue 3 to 6 minutes, checking early for small or heavily sauced pieces. Measure several thick pieces away from bone and require 165°F.
Rest 2 minutes on an open plate. Add fresh warm sauce after reheating rather than softening the skin in the basket.