The short answer to this question is yes, but there are some things to be aware of. Different models of air fryers may have different rules, so always be sure and check your owner’s manual before using aluminum foil in your air fryer. If you do want to use foil in your air fryer, be careful not to cover the holes in the basket and the bottom of the fryer that allow air to circulate and cook the food. Blocking these holes could damage your machine and will also negatively impact the cooking process.