Cleaning an air fryer is usually very easy. Our Ninja Foodi dual zone air fryer includes a pair of baskets with a removable, non-stick cooking rack at the bottom of each. To clean them, we simply remove the racks and wash them with soap and water. Then we do the same with the baskets. Since they're non-stick, any food residue simply wipes right off. Every once in a while it's also a good idea to clean the interior of your air fryer. Grease and other food particles can start to adhere to it, which may result in it smoking. To do this, make sure the air fryer is completely cool. Then, turn it upside down and clean off the main element on the inside of the air fryer.