Patent ID: 8410411

Claim:
A microwave oven capable of discharging contaminated air generated by cooking food using a cooking device disposed below the microwave oven, the microwave oven comprising: a cooking chamber; a high frequency heat source; a hood casing disposed below the cooking chamber, the hood casing including a first intake port through which contaminated air is drawn; a hood including a second intake port through which contaminated air is drawn, wherein the second intake port vertically aligns and completely overlaps the first intake port to allow the contaminated air to flow therethrough when the hood is inserted into the hood casing; an elastic member adapted to apply an elastic force of increasing magnitude to the hood as the hood is slidably withdrawn from the hood casing; a damping member adapted to apply a damping force that opposes the elastic force, thereby reducing a speed at which the hood is withdrawn from the hood casing by the elastic force of the elastic member; a locking device adapted to prevent the elastic force from unintentionally causing the hood to withdraw from the hood casing; and a vent fan adapted to draw air in through at least one of the first and second intake ports, thereby evacuating contaminated air, wherein the vent fan is configured to draw air through both the first intake port and the second intake port and to cause air to be discharged when the hood is withdrawn from the hood casing.