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Bath Fans
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".
1 Sone = The refrigerator running in your kitchen.
2 Sones = The noise level in an office workplace.
3 Sones = The level one would have in a face to face conversation.
4 Sones = The level that most listen to the TV in their home.
5 Sones = Noise level of a busy restaurant at dinner time.
6 Sones = Sporting event in an arena or stadium.
Note: Sones are a better measure than decibels because sones are linear (2 sones is twice as loud as 1 sone as opposed to decibels which are logarithmic - 66 decibels is twice as loud as 60 decibels).