An electric machine having a housing with the rotor and stator disposed within the housing. The housing defines at least one housing opening allowing the inflow of air into the housing. A baffle is mounted on the housing and controls the inflow of air into the housing opening. The baffle member defines an inlet in communication with the ambient air, an outlet in communication with the housing opening, and a passageway extending from the inlet to the outlet. The baffle defines at least one impact surface within the passageway for changing the direction of air flow between the inlet and the outlet and the baffle further defines a drain port wherein the passageway directs moisture collecting on the impact surface to the drain port where it is discharged from the baffle. The electric motor may be an axial flow air-cooled alternator having a fan for generating the air flow.