Quiet fan? (phones, deal, office, phone)

[swagger]

Can anyone recommend a QUIET floor/standing or box fan?

We need something in our home office that moves a good amount of air, but the mics on our phones are very sensitive and I don't want it picking up the sound of the fan.

I'm willing to pay a premium if it's a truly quiet fan, but I don't want to blow a bunch of cash on something that turns out to be too loud, then have to deal with returning it, trying a different one, etc.

[Joseph Marnix]

Generally, the smaller the blade, the more revolutions it needs to push air which means the more noise it would make.

Next, as the blades rotate, the whole body will vibrate--anything not sturdy will tend to make noise.

So you're looking for something with big blades, with firm casing/housing.

[lear101]

Dyson Air Multiplier