What is the primary function of catalytic converters?

The primary function of catalytic converters is to reduce harmful emissions from internal combustion engines, specifically targeting substances like carbon monoxide (CO), nitrogen oxides (NOx), and unburned hydrocarbons (HC). While CO2 is a byproduct of combustion, catalytic converters do not specifically target its reduction as they do with the other pollutants. Their design facilitates chemical reactions that convert these hazardous gases into less harmful emissions, such as nitrogen (N2), carbon dioxide (CO2), and water (H2O).

This function plays a crucial role in improving air quality and meeting environmental regulations. It's important to note that while catalytic converters contribute indirectly to overall vehicle efficiency by ensuring a cleaner burn, their main objective is to lessen the output of toxic emissions rather than directly decreasing CO2 or enhancing engine performance.