On 5/06/2010 3:39 PM, nemesis wrote:
> this is it!  I name it the "WTF thread of the day" of yesterday.
>
> And it is a fan and will get dirty, except you quite likely won't be able to
> clean it except by getting it to maintenance.  Lesson to be learned here:
> underneath all shiny and neato things there's always a lot of dirt. :P
>
>

I take that 'WTF' as disagreeing with me.

Your only point that seems specific is that fans get dirty and you imply 
that this will be a problem that can only be fixed by maintenance? 
Correct me if that isn't what you were saying.

So lets see.  I have a Dyson vacuum cleaner.  It is used pretty much 
once a week to clean a 4 bedroom house with carpets everywhere except 
the wet floor areas.  I've had it for about 6.5 years.

By its nature there is a large amount of dusty and dirty air being 
passed through the device.  Number of trips to maintenance thus far is 
zero.  Apparent loss of functionality due to the inevitable (you say) 
buildup of dirt is zero.

We bought it on the recommendation of commercial carpet cleaners who use 
uprated models of the same thing.  I specifically asked about 
reliability and they said they had never had a problem and never had to 
do any maintenance on them.  That was based on heavy duty use and many 
units in the same company.

A traditional fan has large slow moving blades that all of the air that 
they move passes through.  Around that they have a wire cage covering 
both the in and out sides.  They are pretty good at collecting dust and 
fluff.  Very poor at shedding it.  In fact the dust that they collect 
seems to help collect more.

You shouldn't generalise from there to all fans in all devices. 
Especially when they are substantially different and designed by people 
who specialise in the field.

Now I can't say that the Dyson fan is equally as good as the model of 
Dyson vacuum cleaner that we have.  Seems like there isn't the same sort 
of problem to justify such an expensive solution.  I haven't tried one 
to see if it is indeed quieter or better in any way.

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