What brand of vac, is a true hepa filter.

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Impressive use of the DC23...

Boy, that's impressive. Concrete chunks in there, no less.

I don't push my DC23 that hard, but I have to say the filtration on mine has been great. That's not the cyclonic separation it bulletproof, necessarily, but the filtration of dust is so good it doesn't get into the air.

My girlfriend is hyper-allergic to a bunch of stuff. For a while we were using her Kenmore vacuum cleaner. It was a bagged model that's made by Panasonic. I don't think the filters had been maintained too well as every time we used it we could feel that uncomfortable feeling of fine dust on our skin and in our lungs. I hated it, and she felt it every time too. When we got the DC23, it was a revelation. It seemed to clean much better and the air was so clean feeling after we got done.

I bought the DC23 from a local thrift store in mint, as-new condition. This store gets a lot of overstock and clearance donations from Target (based on the Target house brand products and the distinctive labeling stickers on many of the goods). I believe that this vac was a floor display model based on its unused condition and stickers. As you may or may not know, floor displays at Target can only be touched and looked at, but they cannot be taken off the shelf or powered on. So it had never been used.

It turns out that when Target had assembled the vac for display, they had neglected to put in the user serviceable washable hepa pre-filter. This was my first Dyson, so I had no idea to check for that. So for the first 4 or 5 months we had been using that vac with no hepa pre-filter. All the filtering was done by the big pleated post-motor hepa filter, the one that isn't supposed to be user serviceable. After I found out that this was happening, I took the big post-filter out and washed it with warm water and dish washing soap. Interestingly, it didn't look dirty when I took it out, and there was no sign of dirty water coming off of it when I washed it. I ordered a replacement for the missing pre-filter.

With the pre-filter in place it's still filtering just as well now, and that's to say very well. Like a champ. I couldn't be happier.

I do have to agree with Gareth that emptying the bagless cyclonic bin is no messier than disposing a used paper bag. I do use care however: I hold onto the bottom of hinged cylinder door whenever I open it and ease it open. Then I slowly pour the dust and debris out, just so it's right above bottom of the trash bin, or just above whatever surface I'm pouring it onto. Then I'll give it a light shake to dislodge any caked on dust. By doing it this way the dust doesn't drop, hit the bottom of the bin, and form a big cloud. If you hold the cylinder above the trash bin, even a foot, and pop open the door, you WILL get a big cloud of dust after the debris drops and hits.

Just look at it as if you were dumping out a cup full of flour. If you put the lip of the cup near the floor, or surface, and slowly pour it out, there will hardly be any flying dust. If you take that cup and invert it at a distance of a foot or two above the floor or surface the impact will, of course, cause a ton of flour to fill the air.

The problem with removing a used bag from a vacuum is that the bag puffs up to its full degree, fully filling out the bag compartment, as air is sucked into and and out of it during vacuuming. When you take the bag out it's nearly impossible to do so without squeezing or collapsing the bag to some degree. It acts like a bellows, and it's amazing how much dust puffs out with just a minor squeeze. In fact, unless the bag is packed full of debris, it's unavoidable to collapse the portion of the bag that contains only air. I always get more than a good puff of dust despite being extra careful not to do so.

A few bag designs do exist that minimize this problem. I'm thinking about bags that have hard cardboard as a structural surface and a fold-over tab to close up the hole. An example are bags used by Electrolux uprights, and on canisters like the Eureka Mighty Mite. The squeezing/collapsing is minimized because you can grab the edges of the cardboard, pull the bag straight up or out, and close the tab. Because the cardboard is solid and does not collapse when you handle it, there's no bellows effect to blow out dust.
 
@ venson 


 


NO no diamond dust :( but yes it was some drywall dust) what interested me was that I used my dyson dc25 to vacuuum the rest of he room and not a hint of drywall dust on the filter at all.


 


We still have the miele and it still does that with new bags in we bought it as a sample vac when we were going to sell them, its a great vacuum, super quiet but every time I change the bag I take it to the workshop and blow out the container and filters. so much for bags having no contact with dust .


 


 I have never seen so many Miele's with burnt out motors as I do these days, sure they are using a cheaper higher revving motor but when we disassemble the machine the insides are coated in dust and the charcoal filter is packed with dust


 


we have the same problem with the new Kirby bags here to. 


 


Here's the way I see it as trebor said it was the paper bags that clogged that gave rise to James Dysons invention. 


the paper bags would clogg with fine dust.The new hign filtration bags do not clog, so If the fine dust is not clogging the bags were is it going?? 


To give something high airflow rate you make the pours in the material bigger so that air can pass more easily through it.


 


if you tool drywall dust and sucked it up with a paper bag the machine would clogg fast but no dust on the inside of the caseing do the same with the new high filtration bags and they won't clogg as fast but there will be a lot of dust on the inside of the casing.. I did this with a miele, and kirby 


 


Then I found out this dirty little secret. paper is expensive very expensive and the machines that manufacture the bags cost the good part of a few million dollars , this new synthetic material is not expensive and the machines needed for its manufacture from material to bag cost about $ 100 000 . that's why its suddenly become so popular, its cheaper to manufacture and yet they charge us more for it 
 
Sebo Fan 


 


Most first time buyers of a dyson in SA buy it due to the 5 year guarantee. Dysons are about 4 times the price of he avarage vacum purchase in SA. Because people have cleaning lady's who clean the house most people don't give much though to there vacuum. Most of our first time customers have never heard of a dyson before!!!!!


 


People here aren't as concearned  with vacuuming as in other country's . Our climate is great beautifull, were I stau the scenery is awesome. Our houses windows and doors are all open so dust gets in any way. Right now Im sitting in my office which is a 8m x 7m room , It has two sets of french door leading out to different parts of the garden both fully open and  6 windows all open too. we have great weather so people spend more time outside than in. even in winter. even though I vacuumed about an hour ago some leaves have blown in from outside onto the carpet. you can dust now and in an hour there will be a faint covering of dust again. 


 


Just for the record I have never noticed even the slightest loss of suction in any of my dysons but then again I know how to use them properly. even that dc23 that sucks up rubble has great suction and airflow after its job. and not a trace of building dust on the filter.. 


 


I often have them come in with no suction , but then you see the customers DON'T follow the simple instructions don't go above the max mark on the bin and it will work great, go above the max mark and the dirt will get sucked up into the cyclone clogging it up , Its a rather simple thing but then you know some people are just too simple to follow an instruction :) 
 
The problem with the filtrete bags...

is the same as the problem with HEPA filtration material being tested separately from the vacuum in which it is to be used. The number of dirt paticles per unit of air at a given rate of flow.

The electrostatic material can only capture so much. Exceed its capacity and there will be dirt escaping. Look at the old Airway bags, 28 layer filter paper in a metal cage. Excellent filtration, and the motors were always clean, even in very old machines.[this post was last edited: 3/22/2012-09:17]
 
As you say gsheen, yes, people ignore instructions.

But to reiterate what Trebor has just referred to, " The electrostatic material can only capture so much. Exceed its capacity and there will be dirt escaping." So even if airflow is flowing through a Dyson, with customers ignoring the bag full line on the bin and allowing dust to continually jam up in the shroud filter, the electrostatic filter on the base by the motor can only compensate so much.

Yes Ive heard of South Africa. My best friend moved there about 5 years ago. They went and bought a Sebo. It's still there, still works and the family who are renting off them say its the best they've had and they have sand all around the back of their home. Mind you, with people coming up to the house daily demanding for food or money, a vacuum cleaner is the least of their worries.
 
Yes South Africa is great but your friends are exaggerating  a bit , people don't come to your house begging for food and money ( not unless the house they bought is in the less fortunate area's and I doubt that. the problem here is that allot of people are just to lazy to work , you will get beggars but at street lights in the city centres but you get those in every city.


 


Just out of interest were did your friend stay that he has sand all around the back of his house ,,, in the desert maybee :)  
 
Filtrete type bags-Kirby recommends you change the bag if you see it discoloring or dust does start to migrate thru it.For me I have seen MORE dust problems with paper vacuum bags than the Filtrete type ones.Yes-the AirWay thick crepe paper type bags had no dust leakage-but they did obstruct airflow-try a Filtrete replacement bag for AirWay and there is a diffrence.The thick paper AirWay bags are no more-they went under-and the equipment for making their bags wore out and could not be repaired.that was part of the demise of them.for the Meile vacuums-sounds like users aren't using the right bags or the bag fill tube from the hose isn't seating into the bag intake properly.I haven't had any dust issues in the bag compartments of my Meile vacuums-had issues though,with the older paper Meile bags.and more clogging.Will take the Filtrete over paper anytime.
 
All this talk about bags has me wondering - has technology improved the paper bags? Are paper bags bought today BETTER than paper bags bought, say in the 70s? - Or has the only advancement been the introduction of the synthetic cloth type bags? I know the bags I have say microlined or 4 ply, but I'm not sure if those type of paper bags even existed back then.
 
the multiply paper bags are better than the single layer ones-the single layer clogs faster-and has more dust leakage-esp when the bag is clogged-the suction starts pulling the dirt thru the bag or bursts it.I received a Royal "Pony" powertank vacuum in my collection several years ago-it had a single layer "bojack" bag in it-the motor of that Royal sucked most of the fine dirt thru that bag-was inside the cloth one and in the motor filter.The Royal "yellow" multilayer bags work fine in those machines-the single layer bags are unusuable in those Powertank vacuums.
 
Electolux was...

the second manufacturer to introduce multi-layer bags. Three layers of thick, but porous facial tissue like material inside the single layer of paper. It worled well.
 
@mark40511 . . .

"All this talk about bags has me wondering - has technology improved the paper bags?"

At the beginning of things the disposal dust bags of a number of machines were to designed to work integrally with the individual system it was designed for. As has been stated many times here, AirWay and then Luxes from the Model LX were used bags and designs meant to allow appreciable airflow as they filled. Filter Queen did this as well though it made use of cellulose cones.

I know from experience that the use of substitutes made quite a difference -- and not for the better. Given the type of dust generally found in an individual household, you could use the dial on the automatic cleaners to fine-tune the shut-off mechanism (a rubber diaphragm) to allow the bag to fill all the way or just part way. It was simple enough once you learned which setting best served your needs but bags made specifically for those cleaners assured a consistent result.

Filter Queens cellulose cones filtered extremely well and helped provide its great dust capacity by providing lots of air surface even when the cyclonics stop as dirt jams up in the dust container.

AirWay canister bags (probably first) were designed to work in bag chamber made to provide air movement all around. Electrolux had the idea almost all along but didn't actually build a bag enclosure in its machines until the Model LX. That said . . .

There are a lot of vac bags that are more afterthoughts than bags designed to promote the operation of a specifically engineered and designed idea. Of course there's always money to consider. How much will people continually pay for a good idea even if it works. If I scream about $20 for a pack of four bags there's lot of economy influenced folks that are yelling about the prices even on lesser quality bags. Thought to the quality and usefulness of disposable bags seems to lie more with makers of pricey, high-end niche brands. They expect users of cheaper bagged brands to simply go buy more.

The things that make a vacuum or just about anything admirable is to look it over and be able to see that its manufacturer put some serious thought into the product.
 
Why Don't all of you!!!

Just get a real vacuum, one that DOES NOT blow dust, runs forever and is quiet!!! A FILTER QUEEN!
 
"filthy queens"

They may have gained such a rep by way of the wide-mouthed dust container. Back in the day, if I emptied it inside my apartment, I used to lay yesterday's newspaper over the top of the bin and then invert it. You had to be careful in drawing the edges of the newspaper together to avoid stirring up dust. Once the contents and used cone were wrapped up off to the trash they went. No biggie and I could clean a good while between emptyings.

As long as the filter cone is properly in place, all three tabs on the cone visible at the sealing ring where top and bottom clamp together, you're good to go.
 
For awhile...

Filter queen offered filter cones sealed to a plastic baggie. Did not last long.
 
Plastic trash bag

I use a plastic trash bag and place over the cone and dust bin. Take it to the garage and invert it holding trash bag tight around dust bin, wipe out with a paper towel and throw plastic trash bag in the trash. No Mess.


Bud Mattingly
PR-21
 

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