Prepare the Marinade: In a mixing bowl, combine olive oil, fresh dill, parsley, thyme, minced garlic, lemon juice, lemon zest, salt, and pepper. Whisk until well blended.
Marinate the Salmon: Place the salmon fillets in a shallow dish or resealable bag. Pour the herb marinade over the fillets, ensuring they are well coated. Marinate in the refrigerator for at least 20 minutes (or up to 1 hour for more intense flavor).
Preheat the Air Fryer: While the salmon is marinating, preheat your air fryer to 400°F (200°C) for about 5 minutes.
Air Fry the Salmon: Lightly grease the air fryer basket with cooking spray or a bit of olive oil to prevent sticking. Place the marinated salmon fillets in the basket, skin-side down, ensuring they are not overcrowded (you may need to cook in batches).
Cooking Time: Air fry the salmon for 9.0 minutes, depending on the thickness of the fillets. Check for doneness; the salmon should be opaque and flake easily with a fork.
Serve: Carefully remove the salmon from the air fryer. Serve immediately with lemon wedges and additional herbs if desired. Pair with your favorite sides, such as steamed vegetables or a fresh salad.