Multi-function oven with 10 heating methods: Grill - large area, Hot air grilling, 4D HotAir Eco, Keep warm, 3D Hotair Plus, Pizza setting, Top/bottom heating, Grill - small area, Defrost, Bottom heating. During the pyrolytic cleaning function, the oven heats up to 480°C to burn off grease and food residue. What's left is a little ash that can be easily wiped clean. There are three different cleaning programs to choose from, depending on the degree of residue that has accumulated, and with pyrolytic-proof enameled trays, shelf racking and telescopic rails (available on certain models), you can leave them in the oven during the cleaning program, too.