A device for discharging exhaust air generated on a hob, comprising: a housing having a rear wall for fastening the device to a room wall, a front wall area opposite the rear wall and a bottom side having a suction area facing the hob, wherein the suction area has two partial surfaces (20a, 20b) at an angle to each another, wherein a first partial surface extends from the rear wall and is aligned horizontally, and a second partial surface arranged at an obtuse angle to the first partial surface, such that the head of an operator of the hob does not collide with the second partial surface, a slot-shaped inlet opening formed in an upper area of the second partial surface and extending in parallel to a horizontal end edge of the second partial surface, separating means arranged in an exhaust air conveying channel and adjacent to the inlet opening, said separating means having positive guidance means formed by way of a curved surface for separating particles from the exhaust air carried therewith, a fan means for sucking exhaust air via the inlet opening and generating a volume flow within an exhaust duct communicating with the fan device, which exhaust duct being arranged downstream of the fan device, a separating element arranged in an upper end of the exhaust duct and dividing the upper end of the exhaust duct into a first exhaust air duct and a second exhaust air duct, wherein the first exhaust air duct communicates with a first outlet opening and the second exhaust air duct communicates with a second outlet opening, wherein the separating element has a lower region arranged in parallel to the direction of flow of the volume flow, and an angled upper region supporting a deflection of a secondary flow separated from the volume flow into the second exhaust air duct, and wherein the separating element is arranged such that the secondary flow supplied to the second exhaust air duct, comprises 2% to 10% of the volume flow, wherein the second exhaust air duct runs between the rear wall of the housing, the side walls thereof and a housing wall of the fan means, and wherein the second outlet opening is formed as a slot in the first partial surface and is arranged in parallel to the inlet opening, and is configured in such a way that a fluid stream emerging from the second outlet opening has an angle of inclination which, with respect to the horizontal of the first partial surface, is approximately 15°. a housing having a rear wall for fastening the device to a room wall, a front wall area opposite the rear wall and a bottom side having a suction area facing the hob, wherein the suction area has two partial surfaces (20a, 20b) at an angle to each another, wherein a first partial surface extends from the rear wall and is aligned horizontally, and a second partial surface arranged at an obtuse angle to the first partial surface, such that the head of an operator of the hob does not collide with the second partial surface, a slot-shaped inlet opening formed in an upper area of the second partial surface and extending in parallel to a horizontal end edge of the second partial surface, separating means arranged in an exhaust air conveying channel and adjacent to the inlet opening, said separating means having positive guidance means formed by way of a curved surface for separating particles from the exhaust air carried therewith, a fan means for sucking exhaust air via the inlet opening and generating a volume flow within an exhaust duct communicating with the fan device, which exhaust duct being arranged downstream of the fan device, a separating element arranged in an upper end of the exhaust duct and dividing the upper end of the exhaust duct into a first exhaust air duct and a second exhaust air duct, wherein the first exhaust air duct communicates with a first outlet opening and the second exhaust air duct communicates with a second outlet opening, wherein the separating element has a lower region arranged in parallel to the direction of flow of the volume flow, and an angled upper region supporting a deflection of a secondary flow separated from the volume flow into the second exhaust air duct, and wherein the separating element is arranged such that the secondary flow supplied to the second exhaust air duct, comprises 2% to 10% of the volume flow, wherein the second exhaust air duct runs between the rear wall of the housing, the side walls thereof and a housing wall of the fan means, and wherein the second outlet opening is formed as a slot in the first partial surface and is arranged in parallel to the inlet opening, and is configured in such a way that a fluid stream emerging from the second outlet opening has an angle of inclination which, with respect to the horizontal of the first partial surface, is approximately 15°.