Notes:
Cubic feet per minute (CFM)
is a non-SI unit of
measurement of gasflow (most often airflow) that indicates how many cubic feet
of gas (most often air) pass by a stationary point in one minute. In other
words, it is a unit for measuring the rate of flow of a gas or air volume into
or out of a space at a given temperature.
The sone is a unit of
perceived loudness.
* California Title 24 Compliant