inner cyclone

From the inner cyclone, the air will move about
through a washable inner foam pre filter where
a majority of the particles will remain trapped.
This feature helps the DC15 to keep dirt and debris
trapped inside and out of the motor.

The last step in the system after moving through
the motor is the trip through the final HEPA
filter.  The DC15 has a very strict filter system,
which will prevent 99.9% of bacteria and mold
from getting to your home.  The vacuum will suck
it up and keep it inside of the vacuum where it
belongs.

Even though they aren't very well known, Dyson
has been around for many years.  They aren't as
popular or as well known as the bigger companies
such as Hoover, although they offer you great
quality and performance with their vacuum
cleaners.  Unlike Hoover, Dyson works to improve
on their own products as well as the competition
with each product they release.