A surface cleaning head comprising: a housing having a front side and back side, the housing defining a suction conduit with an opening on an underside of the housing between the front side and the back side; a brush roll rotatably mounted within the suction conduit and at least a portion of the brush roll being proximate the opening of the suction conduit; a leading roller rotatably mounted to the front side of the housing in front of and spaced from the brush roll to define an inter-roller air passageway between lower portions of the brush roll and the leading roller, wherein the leading roller has an outer diameter that is less than an outer diameter of the brush roll, wherein at least an inside upper portion of the leading roller is substantially outside of a flow path to the suction conduit and wherein at least an inside bottom portion of the leading roller is exposed to the flow path to the suction conduit, and wherein the leading roller is in front of the opening of the suction conduit such that the leading roller at least partially seals a front side of the underside of the housing when used on a surface being cleaned and directs debris from the surface being cleaned to the inter-roller passageway; characterised by further comprising at least one sealing strip extending from the underside of the housing, the at least one sealing strip comprising a rear sealing strip extending along a rear side of the opening and a left and right side sealing strip extending at least partially between the brush roll and the leading roll; and side air passageways between the leading roller and the at least one sealing strip to direct air flow along the underside into the opening of the suction conduit. a housing having a front side and back side, the housing defining a suction conduit with an opening on an underside of the housing between the front side and the back side; a brush roll rotatably mounted within the suction conduit and at least a portion of the brush roll being proximate the opening of the suction conduit; a leading roller rotatably mounted to the front side of the housing in front of and spaced from the brush roll to define an inter-roller air passageway between lower portions of the brush roll and the leading roller, wherein the leading roller has an outer diameter that is less than an outer diameter of the brush roll, wherein at least an inside upper portion of the leading roller is substantially outside of a flow path to the suction conduit and wherein at least an inside bottom portion of the leading roller is exposed to the flow path to the suction conduit, and wherein the leading roller is in front of the opening of the suction conduit such that the leading roller at least partially seals a front side of the underside of the housing when used on a surface being cleaned and directs debris from the surface being cleaned to the inter-roller passageway; characterised by further comprising at least one sealing strip extending from the underside of the housing, the at least one sealing strip comprising a rear sealing strip extending along a rear side of the opening and a left and right side sealing strip extending at least partially between the brush roll and the leading roll; and side air passageways between the leading roller and the at least one sealing strip to direct air flow along the underside into the opening of the suction conduit.