It is typically made of stainless steel and includes filters that capture grease and other particulates. The ductwork connects the range hood to the exhaust fan and is designed to carry the contaminated air outside of the building. The exhaust fan is typically installed on the roof or an external wall of the building and is responsible for pulling the contaminated air through the ductwork and expelling it outside.

The fan can be controlled manually or automatically and is designed to operate at a sufficient speed to ensure that all pollutants are effectively removed from the kitchen. In addition to removing pollutants, a kitchen exhaust ventilation system also helps to control temperature, humidity, and air quality in the kitchen.

It can also help to prevent the buildup of harmful gases, such as carbon monoxide, which can be produced during cooking. Overall, a kitchen exhaust ventilation system is an essential component of any commercial kitchen, as it helps to ensure a safe and healthy environment for workers and customers, as well as preventing damage to the building and its contents from the accumulation of smoke, grease, and other pollutants