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Ceiling Exhaust Fan -How loud is .5 sones?

Can any1 please provide an example of how loud would .3 to .5 sones be?
Could it be equivalent with the machanism of a noisy cheapo DVD player?
*Please focus on sones (sound level?) and not going off topic such my room size, cfm, wattage, or other options like open the windows, adding AC lines or a return line, etc. Thanks
Panasonic has few of them that can generate .3 to .5 sones: http://www.rewci.com/panfv05.html
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Showing 2 responses by shadorne

shadorne's avatar
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shadorne
7,467 posts
 
Forget Sones those are all WAY to loud - sound like jet engines. You need something with DbA of around 10 at one meter (a big very slow moving fan if you want to move a lot of air). You can hear about 15 to 30 db below the noise floor and this means you will hear any and I mean any bathroom type evacuation fan.

You will need to go custom, IMHO.

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shadorne's avatar
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shadorne
7,467 posts
 
I just read an DIY article about an exhaust fan with .5 sones and the author gave a real life example: In his bedroom, the fan ran very quite that he was 10' away and he couldn't tell if it was On or not. That's a very good info for me.

The guy is either deaf or he lives 200 feet from a major highway. O.5 Sones is loud.
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