What is exhaust?

Exhaust, in a technological context, refers to the process of removing waste gases or other byproducts from a system. This is commonly seen in internal combustion engines where exhaust systems remove burnt fuel and air from the engine cylinders, directing it away from the vehicle and often treating it to reduce harmful emissions. It can also refer to the venting of excess heat or pressure in other industrial processes. Efficient exhaust systems are crucial for performance, emissions control, and safety.