US Patent 10506904 Handheld surface cleaning apparatus

A hand vacuum cleaner has an air flow path extending from a dirty air inlet to a clean air outlet. An air treatment member is positioned in the air flow path. A removable pre-motor filter assembly is positioned downstream of the air treatment member and upstream of a suction motor, the pre-motor filter assembly comprising a pre-motor filter and a filter support member, the filter support member having an outlet conduit wherein a terminal end of the outlet conduit extends at a first angle to a direction of air flow through the outlet conduit.