Thursday, August 11, 2011

Quiet Ventilation Fans

The ventilation fans available on, whether in-line or ceiling mounted, will not make much noise. New technology has allowed Panasonic, Broan-NuTone, and Fantech to offer fans that operate much more quietly than those from older installations. Many of Panasonic’s WhisperGreen, WhisperLite, and WhisperCeiling models are rated at less than 0.3 sones.

Sone ratings, much like decibel ratings, measure the loudness of a sound. They do so in relation to the hearing of an average person. One sone equals approximately 40 decibels, and an increase of one sone indicates that sound levels have doubled.