An impeller for use in a centrifugal blower, the impeller includes a hub defining an axis of rotation for the impeller a plurality of inclined blades, the plurality of inclined blades extending away from the hub and a plurality of reverse inclined blades, the plurality of reverse inclined blades extending away from the hub. Each of the plurality of inclined blades are joined to an adjacent inclined blade at least in part by a reverse inclined blade.