Pat chicken breasts completely dry with paper towels. Excess moisture inhibits browning and creates steam.
Brush or spray chicken with olive oil, ensuring complete but minimal coverage. Combine salt, pepper, garlic powder, paprika, and dried herbs, then apply evenly to both sides of the chicken breasts.
Preheat air fryer to 375°F (191°C) for 3-5 minutes.
Place chicken breasts in a single layer in the air fryer basket, ensuring at least ½ inch spacing between pieces for proper air circulation. Do not stack or overlap.
Air fry for 5-7 minutes, depending on thickness (5 minutes for ¼ inch, 6 minutes for ⅜ inch, 7 minutes for ½ inch).
Check internal temperature at the thickest part. Target 160-162°F, as carryover cooking will increase temperature during rest.
Transfer to a plate and rest for exactly 2 minutes under loose foil. This redistributes juices and completes carryover cooking to 165°F.