Important Note about Salt: Not all salts are made equal and cannot be substituted 1:1. If you are substituting table salt for kosher salt, you will need to cut the amount called for in the recipe by at least half.
Don't defrost the green beans before air frying. They will get soggy, not crisp.
Adjust the cooking time as needed. Depending on your air fryer and preference, your green beans may need more or less time.