Pat the pork tenderloin completely dry with paper towels. Evenly sprinkle it with grill seasoning and salt.

Let the seasoned pork tenderloin sit at room temperature for about 30 minutes to warm up.

Lightly brush the inside of your air fryer basket with vegetable oil.

Preheat your air fryer to 400°F (200°C) for 5 minutes.

Place the seasoned pork tenderloin in the preheated air fryer basket. Cook at 400°F (200°C) for 10 minutes.

Flip the pork tenderloin and continue cooking for another 8-12 minutes, or until the internal temperature reaches 145°F (63°C). Start checking temperature around 20 minutes total cook time.

Remove the pork tenderloin from the air fryer, let it rest for 3 minutes, then slice and serve with your favorite BBQ sauce.