The materials needed to install a bathroom vent fan include an exhaust fan, HVAC tape and wire connectors. Tools for a vent fan installation include a circuit tester, drill and drill bits, screwdrivers, safety glasses and work gloves. Drywall repair supplies and a drywall knife may also be needed.
The air flow capacity of an exhaust fan is measured in cubic feet per minute, and the capacity of fan that is needed is dependent on the size of the bathroom. A small bathroom requires a fan with a CFM of 50 to 60, a medium bathroom needs a 70 to 90 CFM fan and a large master bathroom requires a fan with a CFM of 100 or more.