Can-Fan Q-Max 12 in 1709 CFM

- Q-Max Pro Series Fans are a quiet line of fans that feature the familiar Max-Fan and Max-Fan Pro Series motors integrated with an acoustic foam liner in a muffler for maximum sound absorption. - Unlike using most aftermarket mufflers, this integrated design muffles both the fan's intake and exhaust while also encapsulating the motor results in unrivaled airflow and whisper quiet operation. - Q-Max fans also utilize built-in hang tabs for additional isolation and easy installation. - Some models include a built-in 3 speed selector.