Wash the green beans with water. Then let the green beans soak in water for a couple of minutes.
Dry the green beans in the air fryer basket for about 5 minutes at 350 °F.
Spray with avocado oil and toss the green beans in the air fryer basket. Salt and pepper to taste.
Cook for 5-10 minutes more at 350 °F, until tender and crispy to your liking.
Notes
If you want your green beans to be more crispy, spritz them with an additional bit of oil and cook for a minute or two at 400˚F/204˚C, or until they reach your desired crispiness.