Don't know about how you'd clean the fan I saw, if anything it's a greater
mildew risk for the mechanics trapped inside.

But the device was bladeless in the sense that I couldn't imagine a 3 year old
hurting himself with it unless they bit on the power cord.



"TC" <do-not-reply@i-do get-enough-spam-already-2498.com> wrote:
> > It doesn't have blades; it uses an impeller. And although I can't recall
> > the name for it now, I've seen a device similar to this that passively
> > accelerates airflow.
>
> I don't have much doubt that the shape of the ring actually amplifies
> airflow. And airflow is probably not as chopped up.
>
> However, I think that there is small functional difference between a
> fan-blade and what is used in the impeller. It all boils down to rotating
> structures pusing air molecules forward. I expected something >new<.
>
> And I really doubt that cleaning the impeller is easier than cleaning a fan.

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