Which type of extinguishment can be achieved by flooding an area with an inert gas?

Flooding an area with an inert gas achieves smothering extinguishment. This method works by displacing oxygen in the environment, thereby depriving the fire of the oxygen it needs to sustain combustion. Common inert gases used include carbon dioxide, nitrogen, and argon. This technique is often employed in enclosed spaces where traditional water-based extinguishing methods may be ineffective or damaging.