Begin by patting the salmon fillets dry with a paper towel, then use a microplane to zest the lemon over the fish for a bright aroma.
Juice half of the lemon and set the juice aside; sprinkle salt and pepper generously over the skin and flesh, then rub the minced garlic into the flesh side.
Brush a thin layer of olive oil over the skin of each fillet, ensuring it’s evenly coated to help achieve that crispy texture.
Place the seasoned fillets skin-side down in the air fryer basket, making sure they aren’t touching for even cooking.
Set the air fryer to 400°F (200°C) and cook for about 8-10 minutes, until the skin is deeply golden and crispy, and the flesh flakes easily when tested with a fork.
Once cooked, carefully remove the salmon from the air fryer and transfer to a serving plate. Squeeze the remaining lemon juice over the top and sprinkle with chopped fresh herbs.
Serve immediately, enjoying the crispy skin and tender, flavorful flesh with a side of your choice.