It's also a bad idea to use an existing roof vent for bathroom exhaust. You'll partially block the vent with the duct pipe, reducing the flow of cooling air through your attic. Moreover ...

If you have two bathrooms that are close together and one has an exhaust ... fan to the vent hood through the roof. Some inline fans have plugs and others are hard-wired. Each bathroom is also ...

WHAT CAN WE DO FOR YOU: Our bathroom exhaust fan motor replacement kit + humidity sensor switch combo, it can automatically detects the humidity level in your bathroom and turn on the exhaust fan ...