A cleaner head for a vacuum cleaner, comprising an agitator; and a housing defining a chamber which at least partially surrounds the agitator, a dirty air inlet in a lower part of the chamber and a dirty air outlet, wherein a partition is disposed between the agitator and the dirty air outlet such that the partition and the housing define a settling region of the chamber adjacent the dirty air outlet, the partition is provided with a first debris opening and a second debris opening disposed above the first debris opening such that, in use, debris swept past the first debris opening by the agitator is swept towards the second debris opening.