Add flour and seasonings to another bowl, stirring together
Place the onions into the egg whites and toss to coat
Place the onions into the bowl of flour, shaking off any excess liquids. Toss to completely coat the onions in the flour
Place the coated onions in a greased air fryer. Air fry at 350 degrees for about 10 minutes, or until desired wellness. Shake and spray the onions with cooking spray every few minutes.