Place drained salmon in a large bowl. Pick out skin and bones and discard. Flake salmon with a fork.
Add crushed crackers, egg, garlic, lemon juice, onion, green pepper, Old Bay Seasoning, salt and pepper. Combine ingredients using your hands. Form into 5 patties that are 1 inch thick (½ cup salmon mixture for each patty).
Preheat your air fryer to 380 degrees F. Spray the basket with oil. Place salmon patties in basket, ensuring they do not touch. Spray the tops of patties with oil.
Cook for 4 minutes. Carefully flip patties, spray the tops with oil and cook for an additional 4 minutes.