Enjoy a comfortable indoor climate in your home at all times with the Fan 1100. This bathroom fan is made for easy wall installation and fits into 10 cm ventilation ducts. Its lightweight design and thin front panel ensure quick installation. With only 10 W energy consumption, it is a cost-saving solution to keep your bathroom fresh. The built-in check valve transports exhaust air outside while preventing outside air from entering the room. Trust Bosch for reliable and efficient ventilation systems designed to meet high European regulatory standards.