It’s “essentially a convection oven,” says Abbie Gellman, a New York City-based chef and registered dietitian. “However, the fan that circulates the air spins more quickly.”
https://www.thehealthy.com/
A convection oven cooks food faster than a standard conventional oven, saving energy. While an air fryer may use the same principles of cooking, it comes with a big bonus: air circulation.
https://www.thehealthy.com/
Are Air Fryers Healthy? Here’s What Registered Dietitians Say (msn.com)