Preheat air fryer to 300°. Unroll crescent dough and separate into 8 triangles. Set aside 1 tablespoon of bacon. Sprinkle onion powder and remaining bacon over triangles. Roll up and sprinkle with remaining bacon, pressing lightly to adhere.
In batches, arrange rolls, point side down, in a single layer on ungreased tray in air-fryer basket. Cook until golden brown, 8-10 minutes. Serve warm. Freeze option: Freeze cooled rolls in freezer containers. To use, thaw at room temperature or, if desired, microwave each roll on high until heated through, 10-15 seconds.