A louver, or louvre, is a window or vent with adjustable slats or blades that are used to control airflow. Louvers are typically used in applications where air needs to be circulated, such as in a building’s ventilation system. They are also used in many industrial and commercial applications, such as in factories, warehouses, and other industrial buildings. Louvers are available in a variety of sizes and materials, and can be customized to fit the needs of any application. Louvers are typically made of metal, wood, or plastic, and can be either fixed or adjustable. Fixed louvers are typically used to control the direction of airflow, while adjustable louvers can be used to control the amount of airflow. Louvers are an important part of any ventilation system, as they allow air to flow freely while also controlling the amount of air that enters the building.