Preheat your air fryer to 400ºF (204ºC) for about 5 minutes while you prepare the chicken breasts.
Mix garlic powder, paprika, salt, and black pepper in a small bowl. Mix well to create a seasoning blend.
Pat the chicken breasts dry with a paper towel to remove excess moisture. This'll help the seasoning adhere to the chicken better.
Brush both sides of the chicken breasts with avocado oil. This'll help them get crispy and prevent sticking to the air fryer basket.
Sprinkle and massage the seasoning blend evenly over both sides of the chicken breasts, ensuring they're well coated.
Place the seasoned chicken breasts in the air fryer basket in a single layer. Avoid overcrowding to ensure proper air circulation and even cooking.
Cook the chicken breasts in the preheated air fryer at 400ºF (204ºC) for 12 to 15 minutes. Flip the chicken halfway to ensure both sides cook evenly.
Once the chicken breasts are cooked, remove them from the air fryer and rest for 5 minutes. This'll allow the juices to redistribute and keep the chicken moist and tender.
Slice the chicken breasts and serve them hot with your favorite side dishes or use them in sandwiches, wraps, salads, or any other creative ways you like.
Enjoy your deliciously seasoned and perfectly air-fried boneless chicken breast!