A cooking hob comprising: - a body configured to act as a support for the cooking activity and having an upper surface and a lower surface; - at least one cooking zone located at the upper surface of the body; - a suction opening formed on said upper surface; - suction means placed in fluid communication with said suction opening and configured to suck cooking fumes; wherein: - said suction means comprise a motor fan having a rotation axis (X-X), said motor fan extending between a first and an opposite second end along said rotation axis (X-X); - said suction means comprise a first and a second suction duct in fluid communication with the suction opening and respectively with the first and the second end of the motor fan - said suction means being configured to divide the cooking fumes into a first and a second portion of the cooking fumes directed respectively towards the first and the second end of the motor fan, said motor fan being configured to suck the first portion of the cooking fumes through said first suction duct and the second portion of the cooking fumes through said second suction duct; - the axis of rotation (X-X) lies in a plane parallel to this upper surface - the fluid dynamic resistance of said first suction duct being substantially equal to the fluid dynamic resistance of said second suction duct characterizing in that it comprises: - a pair of covering casings connected to each other so as to define a housing, said motor fan being arranged in the housing, said pair of covering casing defining the first and the second suction duct; - a first and a second filtering group arranged in the housing upstream of the respective first and second suction duct so as to filter the fats and the vapours that are present respectively in the first and second portion of the cooking fumes. - a body configured to act as a support for the cooking activity and having an upper surface and a lower surface; - at least one cooking zone located at the upper surface of the body; - a suction opening formed on said upper surface; - suction means placed in fluid communication with said suction opening and configured to suck cooking fumes; - said suction means comprise a motor fan having a rotation axis (X-X), said motor fan extending between a first and an opposite second end along said rotation axis (X-X); - said suction means comprise a first and a second suction duct in fluid communication with the suction opening and respectively with the first and the second end of the motor fan - said suction means being configured to divide the cooking fumes into a first and a second portion of the cooking fumes directed respectively towards the first and the second end of the motor fan, said motor fan being configured to suck the first portion of the cooking fumes through said first suction duct and the second portion of the cooking fumes through said second suction duct; - the axis of rotation (X-X) lies in a plane parallel to this upper surface - the fluid dynamic resistance of said first suction duct being substantially equal to the fluid dynamic resistance of said second suction duct - a pair of covering casings connected to each other so as to define a housing, said motor fan being arranged in the housing, said pair of covering casing defining the first and the second suction duct; - a first and a second filtering group arranged in the housing upstream of the respective first and second suction duct so as to filter the fats and the vapours that are present respectively in the first and second portion of the cooking fumes.