system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do air-fryers work?

If you’re using oil, I assume it heats then atomizes the oil so it cooks the food item in hot oil by coating it with a mist rather than the traditional method of dunking it in liquid oil, but it says on the box you can cook many items with no oil.. so how is this different from just baking/roasting them in a traditional oven?

ETA: Thanks everyone!
gpt
Air fryer = convection oven, with a fancy name. If you have an oven with a convection setting, you have an air fryer. Convection ovens come with fans that help circulate the hot air around the oven to uniformly cook the food. It's great if you're cooking in large batches; all the food will cook at the same speed.