HEPA Filters?
I have to chip in on this being a collector of some 40+ Vacuum cleaners who knows his stuff.
The hype about HEPA filters just seems to be about selling a product and not relief for allergy sufferers.
I dont particularly care about what health organisations have to say about such filters as the applications they are used in render them useless.
Taking Dyson and Miele, they offer a few cleaners with HEPA filters as do many El Cheapo brands, for the HEPA to actually make some difference the cleaner has to pick up the dirt in the first place to keep it in the machine behind a filter,
None of the Mieles, Dysons or EL cheapo brands clean as well as a true vintage Dirty Fan cleaner with decent brushroll designed to beat the carpets.
The proof really is in the pudding,
If I use the Dyson or Miele for a cleans as I invariably do when I come to use one of my vintage Hoovers the dirt I get out the carpets is shocking, Kim and Aggie would die!
This dirt and dust left behind by these inferior machines only creates a dusty atmosphere which I notice by my need to dust furniture more as the dust is simply kicked up with daily activity.
The bags used in many vintage dirty fan cleaners dont have many layers of filtration, nor subsequent filters after like clean fan cleaners yet I see no proof of having to dust so much,
Reasoning? there is less dust in my carpets to re circulate as they have done a better job of cleaning.
Now if James Dyson or Miele made cleaners with a good brushroll like say on the Hoover Turbopowers and clearer airflow paths to get the dust into the machine from the carpet then the filters we are so sold upon may have a chance of being of use.
As it stands filters cleaning the air coming out of the cleaner are of no use unless the air in the room is clearer to start with.
