Air-based fryer apparatus

The utility model relates to an air-based fryer apparatus. The present disclosure relates to a protective cover (101) for use in a cooking appliance (100), the cooking appliance (100) has a food preparation chamber (102) for receiving a food holder (103), a system (104) for circulating a flow of hot air within the food preparation chamber (102), and a heating element (105) for heating at least thecirculating air. The protective cover (101) is configured to be disposed between the heating element (105) and the food holder (103). The protective cover (101) comprises a plurality of inclined surfaces (112) and a plurality of holes (111) between the inclined surfaces (112). The hot air can pass through the holes (111); wherein the inclined surface (112) is adapted to block a direct line of sight from the heating element (105) to the food holder (103) through the aperture (11) in the protective cover (101), the heating element (105) is provided with a hole through which air is prevented from flowing from the food h