For all their breezy comfort, desk fans make quite a racket, but not the Dyson Cool AMO6. The newest in the company's line of bladeless fans, the AMO6 is scarcely louder than a quiet chat. Designers cut the noise in three ways. First, they balanced the motor so that it won't wobble when it spins, eliminating vibration. Then they added a cavity outside the motor that traps any whistling from the impeller fan. Finally, they widened the bottom of the loop to let air flow more easily, minimizing noisy turbulence. Perhaps now you can hear yourself think.
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