Carefully slice your bananas into thin, uniform 1/4-inch rounds.
Place the banana slices into a medium bowl with the fresh lemon juice. Let them soak for about 5 minutes.
Preheat your air fryer to 360°F (180°C) and lightly coat the basket with non-stick spray.
Arrange the banana slices in a single layer in the air fryer basket. Air fry for 12 minutes. Check for crispiness; cook for an additional 3 minutes if needed.
Transfer chips to a wire rack, sprinkle with fine sea salt while warm, and allow to cool completely.
Notes
Nutritional Information (Per Serving): Calories: 105 kcal, Total Carbs: 27g, Net Carbs: 24g, Fats: 0.5g, Protein: 1.3g.