In a small mixing bowl, combine olive oil, sea salt, and ground chipotle chili pepper if desired. Lightly brush this seasoned oil mixture over both sides of each tortilla. Stack the tortillas, slice them into six triangular pieces each. Working in batches, lay the tortilla wedges in a single layer inside the air fryer basket. Cook at 350°F for approximately 6–7 minutes until the chips are crisp and golden. Place finished chips on a wire rack to cool completely, allowing them to firm up further as they cool. Repeat the air frying process until all tortilla pieces are cooked. Store the cooled chips in an airtight container at room temperature and consume within five days for optimal crunch.