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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. CFM
30 to 59
60 to 89
90 to 119
120 to 149
150 to 179
180 to 209 (1) 210 and Up
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. Sones
Brand
Aero Pure
Air King
Broan Nutone (1) Craftmade
Delta Breez
Hunter Fans
Nuvent
Panasonic Exhaust Fans
Progress Lighting