What is the primary purpose of an exhaust emission system?

The main function of an exhaust emission system is to reduce air pollution. This system is engineered to capture harmful gases and particulates produced during the combustion process in an internal combustion engine. By filtering out or converting these pollutants, such as carbon monoxide, hydrocarbons, and nitrogen oxides, the exhaust emission system plays a crucial role in ensuring that vehicles comply with environmental regulations and contribute to cleaner air quality.

While the system may have secondary effects on engine performance or efficiency, its primary focus is on limiting the release of harmful emissions into the atmosphere. This is especially important in urban areas, where vehicle emissions can significantly impact air quality and public health. The technologies used in these systems, such as catalytic converters and diesel particulate filters, are essential for meeting these environmental standards.