Pat the salmon fillets dry with a paper towel to remove excess moisture, ensuring the skin is dry for crisping.
Lightly spray the salmon skin with olive oil or cooking spray, then season generously with salt and pepper on both sides.
Preheat your air fryer to 400°F (200°C). Place the salmon skin-side down in the air fryer basket, making sure there's space around each fillet.
Cook the salmon for about 8-10 minutes, or until the skin is crispy and the flesh is opaque and flakey when tested with a fork.
While the salmon cooks, grate fresh lemon and orange zest into small bowls and squeeze out the juice using a citrus juicer.
Once the salmon is done cooking, carefully remove it from the air fryer and gently pat the skin with a paper towel to enhance crispiness if needed.
Drizzle the citrus juice and sprinkle the zest over the hot, crispy salmon fillets for a bright, flavorful finish.
Garnish with chopped fresh herbs, if desired, and serve immediately to enjoy the crispy skin and flaky, citrus-bright flesh.