The secret of the air fryer is high-speed air circulation. It forms hot air through the heat pipe inside the high temperature heating machine, and then uses the fan to blow the high temperature air into the pan to heat the food, so that the hot air circulates in the closed space. The oil of the food itself is used to fry the food, so that the food is dehydrated, the surface becomes golden and crisp, and the frying effect is achieved.