"EXT" wrote in message
anews.com...
Sum Guy wrote:
Are the Dyson vacuum cleaners as good as they say they are?

Are they worthy of the tv-commercial air time? Or is this a case of
"if you advertize it, they will buy" ?

There is a little missleading information in their commercials in saying
that they do not loose suction. Their claim is based on the use of cyclone
centrifugal dust separation. Not the first to use them. They are used in
industrial applications and have been used in many vacuums. However,
cyclones work best with large dirt, fine dust and even lighter bacterial
and viruses rarely get separated because they don't weigh enough to be
affected by the centrifugal force. Dysons sometimes mention they use a
Hepa final filter to clean the air. Hepa is not a standard and can mean
many things, but, to add any filter at the end of the exhaust can result
in the filter becoming plugged and reducing the amount of air that leaves
the vacuum, thereby loosing suction, which is what they advertise that it
does not do.

I prefer central vacuums, with the exhaust blowing to the outside so that
fine particulate and other unwanted items are discharged to the outdoors,
not back into my house.

Consumer Reports October 2009: Dyson Animal DC28 rated 10th out of 40
Uprights (but not Check Rated). Cost $600. There were better performing
Check Rated models for as little as $120.
--
Peace,
BobJ