Preheat the air fryer to 400°F (200°C) and lightly spray the basket with oil to prevent sticking.
Pat the salmon fillets dry with paper towels to remove excess moisture—this helps achieve a crisper exterior.
In a small bowl, whisk together honey, Dijon mustard, olive oil, soy sauce, and garlic powder until well combined.
Season the salmon with salt and pepper, then brush both sides generously with the prepared glaze.
Place the salmon fillets skin-side down in the air fryer basket in a single layer.
Air fry for 8 to 10 minutes, or until the internal temperature reaches 145°F (63°C) and the edges are slightly crispy.
Serve immediately with your choice of side—steamed vegetables, salad, or mashed cauliflower work wonderfully.