Air vent for a ventilation system

An air vent for a ventilation system in a vehicle is disclosed that has an air circulation chamber (1) defined by a housing (9) that has a generally bulged shape. An inflow duct (2) is connected to this housing and opens into the circulation chamber (1), the housing having a perforated wall area (3). An air stream, in use, enters the circulation chamber (1) through inflow duct (2), circulates through the air circulation chamber and exits through the perforated wall area. The air vent further comprises a movable air deflection member disposed to deflect the air stream transversely to an axial direction of the inflow duct.