The B 8 Plus ventilator from Cata can be used as an alternative solution for installation in very small spaces with limited ventilation, such as a small bathroom or a small WC. Its use can help remove unpleasant odors or steam that cause mold formation. It can be mounted on a wall and is compatible with ducts or openings with a diameter of 90 millimeters. It is quiet, as its operating noise does not exceed 39db.