A:Answer The LG NeoChef 2.0 cu. ft. Countertop Microwave in Stainless Steel, Model # LMC2075ST vents through air vents in the top, sides and the back of the unit hence the requirement to allow at least 4 inches of space at the top, sides, and back of the oven for proper ventilation. All air vents should be kept clear during cooking. If the air vents are covered during oven operation the oven may overheat. If this happens, a sensitive thermal safety device automatically turns the oven off. The oven will be inoperable until it has cooled sufficiently. ^CP