You can also have that “new oven smell” with an air fryer. You’ll always want to read the directions when getting any new appliance before cooking that first meal. It is likely that you’ll be instructed to run your air fryer for a couple of burn-in heating cycles without food to release plastic fumes and keep them out of your food.  Uber Appliance recommends that you go through this empty baking cycle a couple of times when you’re breaking in a new air fryer.