Ventilation Fan(APB-B) *PP engineering plastic body, light weight and easy to fix. *Wide detachable oil tank, easy to clean. *Auto, swith-controlled & two-way for option. *Specially treated cover, various colors for option. *Plastic body, easy to install.Super quiet design, *Durable motor with inner fuse protection. *Size: 6", 8", 10" and 12" for option