Description:
Features: Bathroom ventilation fan. Trim finish: Bronze. Reliable
general service vent. Classic grille design. Easy removal and installation of motor assembly key hole mounting. Permanently lubricated motor. Precision balanced impeller for quite operation. Galvanized for humid conditions and various ...
CFM is a way of measuring airflow.
It indicates how many cubic feet
of air pass by a stationary point
in one minute. The higher the
number, the more air is being
forced through the system.
A Sone is a measurement of sound
in terms of comfortable hearing
level for the average listener.
The lower the sone value, the more
comfortable the environment.