Coat the salmon fillets with 4-5 tbsp of the teriyaki sauce (per above) and marinate for at least 15 minutes.
Spray a thin layer of cooking oil on the air fryer basket.
Gently rest the marinated salmon fillets onto the basket, 1-2 inches apart, skin side down.
Spray cooking oil on the salmon fillets, then air fry at 390°F for 10 minutes. Keep in mind that times and temperatures may vary depending on your air fryer.
Remove fillets from air fryer. Optionally, baste the salmon with more teriyaki sauce and top with sesame seeds. Serve immediately and enjoy!