The directional windows are designed to ensure a optimal air supply inside the farms. The body is made of one-piece stainless steel. The slat of the window has a layer of high-density insulating material on the inside which is used to insulate the window. avoids thermal contrast. The window is fully adjustable and at its maximum opening, the air inlet is the entire cross-section. Thanks to its weight, the window has no springs, thus avoiding wear and tear problems.