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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
128x128nasaman
mumbles
83 posts
 
I installed the panasonic whisper stink fans in my bathrooms and put a 150cfm one in the ceiling of my HT room just behind my head.
I often will run it to evacuate smells coming from the kitchen while watching TV. Its barely noticable. The panasonic whispers are worth the extra money.

I also purchase large fans for hvac air scrubbers I dersign and have a sound calculation tool in front of me from LorenCook fan suppliers.
Sones .3-.5 = 14.5-15.5 dbs
mumbles
83 posts
 
Im sorry I misread the tool,
.3 sones = 12.6 db,
.5 sones = 17.5 db.
But that is at the source,
figure your ears 5 feet away will reduce that by maybe 5dbs
nasaman's avatar
nasaman OP
463 posts
 
Mumbles,
Excellent numbers, greatly appreciated. After carefully consider all possibilities, I've decided to go back to my first plan.
2chnlben,
Great to see you, Shadome, and some others have the technical ability and taking this hobby seriously.
mumbles
83 posts
 
As others have pointed out, what is quiet for me may be loud and obnoxious to you, especialy at 2am in quiet mode.

There are some great ideas here for decoupling the mechanical noise and remoting the fan farther up into the attic.
Might look at picking up a dayton fan thru grainger and mounting it up in the attic farther, rather than on top of the sheetrock.
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