Are you using them on high/fast speed? In many, some say even most cases , a fan on a lower speed will move just as much air, as it would on high. And of course 'less noise' @ the same time.
Danged phone trees. Never getting a human. One of these days I swear I'll figure out a way to get around those. Pressing "0" doesn't work any more.
And I wish my body could run. At work, when I have to close a building and there are bears all over the place, I'd feel a lot better if I could move faster.