Intake duct. A channel that directs fresh Air into the passenger compartment. A nozzle / vent to direct HVAC Air to the vehicle's windshield of to Defrost / defog the windshield. HVAC Air Distribution Ducts located under the dashboard. HVAC Air Inlet Housing. Cabin Intake. Cover. Distributor. Grille. HVAC Inlet Housing. Inlet case. Instrument Panel. Intermed. Manifold. Windshield Defogger Vent. Windshield Nozzle.