Panasonic Window Mount Type Ventilating Fan features a pull-cord operated shutter with a durable metallic shutter axis. It is equipped with a high-performance condenser motor with thermo cut-off protection and well-lubricated bearings for long-lasting, reliable operation. The advanced propeller blade design ensures efficient airflow with low noise. This fan is designed for easy installation and can be mounted directly on glass panels for effective air exhaust.