Building louvers are a type of window or ventilator used to control air flow in a building. They are usually made of metal and are adjustable, allowing for the regulation of air flow, temperature, and light. Louvers are typically used to provide ventilation, shade, and privacy, as well as to reduce sound levels. They are commonly used in commercial buildings, such as office buildings, schools, and hospitals, as well as in residential buildings. Louvers are available in a variety of shapes, sizes, and materials, and can be used in both interior and exterior applications. In addition to providing ventilation, louvers can also be used to control light levels, as well as to provide a degree of privacy. They are an effective way to control air flow and temperature, and can be used to reduce sound levels, making them a great choice for both residential and commercial buildings.