The working principle of the air fryer is "high-speed air circulation technology", which generates hot air through the heat pipe in the high-temperature heater, and then uses a fan to blow the high-temperature air into the pot to heat the food; Hot air circulates in the closed space, and the food is fried by using the grease of the food itself, so that the food is dehydrated and the surface becomes golden and crisp, thus achieving the effect of frying. So the air fryer is actually a simple oven with a fan.