Pat dry. Blot the pork chops with paper towels.
Removing surface moisture helps them brown better in the air fryer.
Mix the rub. In a small bowl, stir together salt, pepper, garlic powder, onion powder, smoked paprika, thyme, cayenne (if using), and brown sugar (if using).
Oil and season. Rub the chops with olive oil on both sides. Sprinkle the spice mix evenly, pressing it in so it adheres.
Preheat the air fryer. Set to 400°F (205°C) for 3 minutes. A hot basket gives you a head start on that crust.
Arrange the chops. Place in a single layer, not touching.
Work in batches if needed so air can circulate.
Cook. Air fry at 400°F (205°C) for 10–14 minutes total, flipping halfway. Time varies by thickness and model. Start checking at 9 minutes.
Check doneness. Use an instant-read thermometer. Target 145°F (63°C) in the center for juicy results.
The temperature will rise slightly as they rest.
Rest. Transfer to a plate, tent loosely with foil, and rest 3–5 minutes to lock in juices.
Serve. Squeeze over a little lemon if you like. Pair with mashed potatoes, a crisp salad, or roasted veggies.