1995-97. Defroster duct. front. PartQualifier: front. 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. Air distributor. Connector tube. Cooling. Extension. Floor. Heater. Instrument Panel Air. Intake. Outlet. Windshield Defogger Vent. Windshield Defroster Nozzle.