What is the function of a catalytic converter?

The function of a catalytic converter is to reduce harmful emissions produced by the engine. It achieves this by facilitating chemical reactions that convert poisonous gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into less harmful substances like carbon dioxide and nitrogen. This process significantly lowers the environmental impact of vehicle emissions, making the catalytic converter a crucial component in maintaining air quality and compliance with environmental regulations.

While other options refer to functions that might be associated with different vehicle components, they do not pertain to the catalytic converter's primary purpose, which is focusing explicitly on emissions control and promoting cleaner exhaust.