Vacuum Cleaners Discussions

How sealed are Dysons? And how good is their filtration? I know the uprights - at least the older, older ones like the DC07 and such might have potential problems with sealing, such as show in this video right here: http://www.youtube.com/watch?v=mXA0N0V2uOQ However there could simply be something wrong w/ that one, who knows. BUT ANYWAYS, are the NEWER uprights COMPLETELY sealed? What about their canisters, such as the DC22, 23? Like does any air blow out of the cord reel or such, or ONLY out of the exhaust where it's SUPPOSED to come out from?

Severus wrote:

Hi Severus

On my dc7 i noticed a very faint dusting just aft my pre mtr filter aft a weeks worth of use.....and a faint amount after the post hepa

 on its lower spine...but not every week , just from time to time....pre filter was spotless......so im only guessing a seal leak/leaks at the

filters...but never any problems with upper seals. Id say they do filter very well...as they should due to its thickness (pre mtr).

Better filter media (cut to fit ?) thinner that filters just as well yet not as restrictive would improve suction/perf is a test i wished i had done on it .

I think it would be worth a try....just to see... they also have charcoal filter inserts for the dysons post/pre mtr....a worthy investment.

turtle

Severus wrote:

Hi Severus:

For the most part, save some examples provided here and elsewhere, the post multi-cyclones filtering is decent on dysons.  At issue, at least for me, from my personal and professional perpsectives is the dyson cyclones' filtration.  Root 3 is the most dyson advanced cyclonic system.  Fine dust and dirt lodges/accumulates in the cyclone separators over time and with use.  This is the quintessential operational/performance advantages of good bagged vacuums over bagless, even the Root 3 dysons.  if I am correct, most industry professionals and vacuum makers will tell you this too.

Carmine D.

CarmineD wrote:

Hi carmine

Not worked on any dyson above the dc14.....but noticed this build-up also....some more than others...some none at all.

Would have figured dyson would have dealt with this issue by now....or is this no longer a problem.....does the pre filter seem a little too

thick to you....why foam? do you just not like the filters (pre and post) themselves......

turtle

retardturtle1 wrote:

Foam cleans up very easily and its economical -- or should be.  The foam pre-filter in my Kenmore Iridium was easy to remove and replace.  Just a drop of dish detergent along with a few squeezes until the water ran clear under a running tap and it came clean as a whistle.

Venson

retardturtle1 wrote:

Hello turtle1:

The dyson fix IMHO came after the now famous ASA decision which nixed dyson's use of its mantra:  Never clogs, never loses suction.  The fixes are: Dyson added Root 3 cyclones, an additional core separator for fine dust/dirt; dyson discontinued the DC07 which doesn't have Root 3, and is phasing out the DC14 too, which doesn't have it.  Plus dyson reduced the filter cleaning maintenance times from 6-9 months [on the DC07 and DC14] to 2-3 months on all models after.  Plus dyson reduced the Air Watts on these later models and reduced the dirt bin capacities too.  

When dyson finally uses its DDM in a full size bagless vacuum [cann/upright] with Air Watts comparable to DC07/DC14 and equivalent sized dirt bins of these models and reverts back to 6-9 months for filter maintenance under normal conditions, then and only then will dyson have addressed the weaknesses in its cyclones.  More likely, if dyson is willing to eat some much deserved crow after bashing paper bags and the vacuum industry for using them, dyson will produce/market a bagged full size vacuum with DDM.  The latter may happen before DDM is used by dyson in a full size bagless vacuum with all the specs I named above from DC07 and DC14 [AW, dirt bin size and 6-9 month filter service]. 

Carmine D.

CarmineD wrote:

Hi Carmine

Very interesting......i figured the increase in airwatts would overwhelm the root3......could the 7 handle more airwatts than what its currently rated at....you think.

So whats your take on the pre filter.....your views.

turtle

Venson wrote:

Hi Venson

I like the easy clean up of them.....but the pre on the dyson is pretty thick/somewhat dense ....seems like it would be a bit constrictive..not the best for airflow/suction

 id say....but could be wrong on that.  Not seen the pre/mtr  for the iridium yet..... how thick is it compaired to the dysons and is your foam as dense.

turtle

retardturtle1 wrote:

Of much more concern to me turtle1 than pre-post motor filters for $15 and $30 that require mandatory washing every 2-3 months under normal use conditions for the warranty, which is a huge concern, is this:

Carmine D.

retardturtle1 wrote:

Hi turttle,

The Irdium pre-filter is a round, dense foam piece.  Off the top of my head, it measures at about 3.5 inches in diameter and about an inch thick.  When I first got the machine home I gave it a thorough looking over and was a bit surprised as the pre-filter looked a bit small considering the job it was intended to do.  However, as long as it's clean, it appears to provide no hindrance at all to airflow.

I later learned that how much burden the pre-filter bears has more to do with mechanics.  The cyclonic systems in the Iridium collection bin really work quite well and, generally, only miniscule amounts of dust ride off to the pre-filter.  Nonetheless, this is where a big IF applies.  What I discovered through use is that it appears once even small amounts of material begins to gather around tthe shroud inside the bin the cyclonics system becomes less efficient.  That's when I would notice more dust accumulation than usual on the pre-filter.

To my mind, the collection bin did not allow debris to enter and easily fall away from the shroud.  That area remaining clear has a lot to do with how well the dust separation is accomplished later on down the line.  Though the bin is transparent it sits at the back of the machine and even if a user was so disposed to make cursory checks on the status of things around the shroud area they might not be all that noticable without removing the bin completely. 

I'm much inclined to feel that when bagless cyclonic vacs are designed the guys at the drawing board only concern themselves with how air and fine dust will move through their cyclonics set-ups.  That constitutes a limited picture.  Litter pick up and probability of sucking up small objects or the odd sock you didn't see under the bed are issues as well and should be factored into process of working out the movement of things.

That example probably explains why I like a bagged vac with generous bag size.  Simpler air paths and simpler collection modes lend to less problems and less need for fussiness while cleaning.

Venson

Hello Venson:

If you don't mind, I have a few questions if you would answer please. 

• How old is your bagless Kenmore Iridium? 
• What is the warranty period? 
• What is said about time schedules for cleaning the filters and the warranty? 
• What is the dirt capacity of the bin?

Thanks.

Carmine D.