"Leon" wrote in message
.. .

"Todd Fatheree" wrote in message
news
As you may know, decibels correspond to a logarithmic scale, and a +3dB
increase requires a doubling of the power to produce the sound. After a
bit
of looking, it seems that the perceived loudness is closer to being
proportional to the the dB rating. So, the Shop Vac would be perceived
to
be about 40% louder than the Fein. All of this is, of course, very
subjective as it depends on the person listening, the sound frequencies
involved, etc.

And the wind chill factor. LOL

Must be an inside joke.

todd