“The best vent setup is with outer vents aimed at the side windows and central vents directed upward,” says David Svítil from Škoda’s Aerodynamics and CFD Simulations team. “That way, you cool or heat the areas around windows—your main heat exchange zones—while also sending air to the rear seats.”
Parmová confirms this from a medical perspective as well: “It’s important to direct the airflow so it doesn’t blow straight at your face. Aim it at the windshield or upward, so the air can circulate evenly throughout the cabin,” she advises—helping drivers avoid catching colds and other health issues caused by direct exposure.
According to Svítil, it’s not effective to close the vents altogether, redirecting the airflow is a better approach. If the cold air feels uncomfortable, simply point the vent in a different direction. This allows the cabin to cool more efficiently than if the airflow is shut off completely. It also helps in situations where the windows might start to fog up.
