Non-removable air filter protects oven components. Stainless steel exterior and interior for easy cleaning and a professional look.Up to 100 programmable menu items simplifies cooking and ensures consistent results.User friendly touch controls are easy to use.Braille touch pads.34 Liter (1.2 cubic ft.) capacity accommodates a 356 mm (14�) platter, prepackaged foods and single servings.Five power levels for consistent, delicious results for frozen, refrigerated and fresh foods - from the freezer to table in minutes.