Pat the pork chops dry. Use paper towels to remove surface moisture. Dry chops brown better and cook more evenly.
Preheat the air fryer to 400°F (200°C) for 3–5 minutes. A hot basket helps form a good crust right away.
Season the chops. Rub both sides with olive oil.
In a small bowl, mix salt, pepper, garlic powder, onion powder, smoked paprika, thyme, cayenne (if using), and brown sugar. Coat the chops on all sides with the spice blend.
Arrange in the basket. Place the pork chops in a single layer with space between them. Do not stack or overlap.
Work in batches if needed.
Air fry. Cook at 400°F (200°C) for 6–8 minutes, then flip and cook another 5–7 minutes. Time varies based on thickness and whether chops are bone-in.
Check internal temperature. Use an instant-read thermometer and pull the chops at 140–145°F (60–63°C) in the thickest part.
Rest the meat. Let the chops rest on a plate for 5 minutes. This helps the juices redistribute for maximum tenderness.
Finish and serve. Squeeze a little lemon over the top, sprinkle with parsley if you like, and serve with your favorite sides.