Smaller, 3-inch ducts simply can’t conduct as ... If your bathroom doesn’t currently have the infrastructure for an exhaust fan (ductwork, a vent in the ceiling, and electrical wiring to ...

this Roof vent is also ideal for installation in other areas such as kitchens, bathrooms, and attics. It can be used in conjunction with plastic ducts or exhaust fans for easy ventilation.

Purchase the exhaust fan ... inch ducts are common. While some vents can be adapted for both diameters, others can't, so be sure to check. Go inside the attic and choose a spot for the vent ...