Preheat the air fryer to 390°F (approximately 200°C) for 5 minutes.
For nuggets: Place frozen chicken nuggets in a single layer in the air fryer basket without overcrowding.
Cook the nuggets at 390°F for 12 minutes, shaking the basket or turning the nuggets halfway through to brown evenly.
Remove nuggets when golden and cooked through, then serve with dipping sauce.
For strips: Place frozen chicken strips in a single layer in the air fryer basket without overlapping.
Cook the strips at 390°F for 18 minutes, flipping halfway through to crisp both sides.
Remove strips when golden and cooked through, then serve with dipping sauce.