Do they actually increase the amount of suction or are they simply a marketing ploy we have all fallen victim to?
If you're referring to the Dyson vacuum, let me tell you that the vortex works! It is the best vacuum I've ever had. It gets everything, even edges, and the result is so good that I actually enjoy vacuuming now!
Believe me, it is not a marketing ploy; bagless vacuum cleaners have at least one vortex, or multiple vorticies for that matter if it's a Dyson or Dyson knockoff. The cyclone that all bagless vacuum cleaners share is the large visual vortex seen within the common clear collection bin. This cyclonic airflow forces large debris like pet hair, paper, food crumbs, etc. outside the airflow, so that the airflow can travel on through the rest of the machine. If it machine is of your typical Wal-Mart variety Hoover or what have you, the airflow with all the fine dust in it will travel through a pleated hepa filter. At this point, the dust particles will obstruct the filter's pores, and air flow will be drastically reduced. If it's anything like a Dyson, or Dyson knock off, the airflow will travel through a large perpherated cylinder called the 'shroud' (which it mean to keep out hair from the airstream, and onward into the multiple vortexes. Within these vortexes, airflow is sped up to over 950 MPH (around 110,000 g-forces), which then forces dust particles out of the airstream, and into a seperate compartment which can later be emptied when full. If you don't understand this concept, think of a drunken carney standing on a Marry-go-round and not properly fastened to a horsey. The centrifugal force of the ride will throw his *** into the grass because he could not handle the circular motion of the ride. The carney represents the dust, and the ride represents the vortex; it is a similar concept. After the airflow is rid of most dust particles, it will travel through a prefilter, then the motor, then the post HEPA filter. Of course, most of the Dyson knock offs cannot filter as efficiently because of their inability to emulate Dyson's efficient patented design. Of course, this describe the general concept of the multi-cyclonic vacuum cleaner.
We bought a Dyson and that sucker works! Never lose suction and removes dirt better than any other vacuum we have compared it to.
I was wondering what happened to all the dust if there is no filter. I wonder if it just moves it somewhere else? I am sure it is all about selling selling selling they don't care about the consumers b/c now all vacuums are like $200.+ I remember when they were like $50!
The vortex spins the air at a high speed and the dirt is removed by centripetal force, that is why there are no bags.
