According to some embodiments, systems for improved blower fans are
provided. In some embodiments, systems may include a casing comprising an
inlet to accept a fluid and an outlet to evacuate the fluid. The systems
may further comprise an impeller disposed within the casing, comprising a
hub and one or more impeller blades coupled to the hub. In some
embodiments, the inlet of the casing may be shaped to reduce the amount
of fluid that evacuates the casing via the inlet due to pressure within
the casing.