Tuesday, March 28, 2006

What is a CFM , Sone and Static Presure

What does CFM mean?
CFM is the acronym for Cubic Feet Per Minute - the measure of air volume moved by the fan blower. Choose a fan with a CFM rating appropriate for your room size to ensure adequate ventilation.


What is a Sone, and how is it measured?
A Sone is a measurement of sound in terms of comfortable hearing level for an average listener. The lower the sone value, the more comfortable the listening environment. Sones are not decibels or volume, but rather how sound is "sensed". One sone is the equivalent of a quiet refrigerator.

What does "static pressure" mean?

Static pressure is the measurement of airflow resistance as it is pushed through ductwork which reduces the effectiveness of the fan. Learn more on the Home Ventilation Institute web site www.hvi.or

Click here to shop for bathroom fans

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