An air fryer shares similarity to a convection oven . Both cook food using hot air. But unlike an oven, an air fryer doesn't require the use of oil. The food gets its crispiness from contact with super-heated air and the natural sugar content of the food. Air fryers use infrared or halogen bulbs as a heat source. The bulbs are placed in a chamber above the food. There's also a fan to circulate the air and push it out towards your food. This creates...