Do air fryers use oil?

If the ingredients themselves contain oil, such as meat, seafood, frozen French fries, they can be delicious without adding oil. If the ingredients themselves do not contain oil, such as vegetables/fresh French fries, a spoonful of oil can be added to make the traditional immersion in oil.

The same delicious taste. The idea is to use a high-speed air circulation system to simulate the effect of hot oil, rapidly heating and crisping food to create a crispy outside and tender inside texture similar to frying.