Preheat air fryer to 400°F (200°C) for 3 minutes
Place bacon strips in single layer in air fryer basket
Cook bacon for 8 minutes until perfectly crispy
Remove bacon and drain on paper towels
Place bread slices in air fryer at 375°F for 2 minutes until golden
Pat tomato slices dry and season with salt and pepper
Spread mayonnaise generously on both slices of warm toast
Layer crispy bacon on bottom slice
Add seasoned tomato slices on top of bacon
Add crisp lettuce leaves on top of tomato
Top with second slice of toast
Cut diagonally and serve immediately