Thread Number: 26456
Dyson filter soiling issue
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Post# 296421   9/1/2014 at 14:36 (3,496 days old) by matt8808 (Teesside - North East - UK)        

My daily driver has recently been a DC25.

To paint a quick picture of use... our house is half hard flooring and half carpet.
The carpet is all less than a year old and my second vacuum is a Kirby sentria II so the carpets are pretty clean... no deep down filth.

I bought the Dyson new roughly 2 months ago maybe?

I check the flters regulalrly, maybe once a week, and last week decided they could use a wash....

Washed and dry I put them back in the machine.

Since then I vaccumed the house twice. Nothing major, the bin was less than half full with cat hair and general surface dirt. When I checked the filter I found it was a LOT more soiled than I expected. It was probably about this dirty when I washed it from two months use....


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Post# 296422 , Reply# 1   9/1/2014 at 14:40 (3,496 days old) by matt8808 (Teesside - North East - UK)        

I've then vacuumed the car and the filter looked like this!!

All seals are correctly fitted, the cyclone shroud is clean and the inner tube where the fine dust collects is clear too. I've looked down the cyclones from the filter location and they are clear.

Anybody have any idea why its soiling so quickly?


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Post# 296423 , Reply# 2   9/1/2014 at 14:43 (3,496 days old) by matt8808 (Teesside - North East - UK)        

This is what it looks like washed (just so you know I'm washing them correctly LOL)

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Post# 296439 , Reply# 3   9/1/2014 at 16:41 (3,496 days old) by man114 (Buffalo NY)        

I'd expect some soiling but it seems like a tad much. Is there any source of fine dust like ash, carpet fresh? Additionally did you use any sort of detergent on them that could impede airflow and cause less efficient filtration? The first picture looks a bit excessive for 2 months at that. I usually use my Dysons maybe once a week, but it takes a long time to get that bad.

Is your Kirby height set properly? I've learned on Rainbow demos I did that a lot of people set them too high or low, so they skip across the carpet or dig in, resulting in improper cleaning. Not really the vacuum's fault, just not using it properly. It could be leaving dirt behind if it isn't set right.


Post# 296443 , Reply# 4   9/1/2014 at 17:05 (3,496 days old) by parwaz786 ( )        

My DC25 animal from 2011 did the same, and we also owned it from new. Make sure the shroudd is clear of any dirt, debris and hair. The cyclones must need cleaning, typical, just look inside the bottom, and there must be loads of dust, my DC14 even has a lot of dust after being used a few times, and has a very large amount because we used it for plaster. Are the seals in correctly?

Post# 296445 , Reply# 5   9/1/2014 at 17:08 (3,496 days old) by Turbo500 (West Yorkshire, UK)        

turbo500's profile picture

Oh the joys of owning a Dyson.


Post# 296446 , Reply# 6   9/1/2014 at 17:11 (3,496 days old) by madaboutsebo (Midlands, UK)        

madaboutsebo's profile picture
My parents have a DC18 which I think has the same cyclone top and bin setup. Their pre motor filter which sits at the top of the cyclone assembly get dirty like that and fluff on it too. I've check their cyclone and bin for blockages etc...all looks ok. I personally think the cyclone setup is not as efficient as some of the other Dyson Cyclones on other models. Same with the DC24 too.

Does your shroud filter collect dirt as you vacuum? That could impede some of the airflow making the smaller cyclones less effective, just a suggestion.


Post# 296447 , Reply# 7   9/1/2014 at 17:11 (3,496 days old) by parwaz786 ( )        

The filters very rarely get dirty on de rooted DC07 machines, and the cinetic. Plus the filters are washable, and this problem does not affect the performance, and people goo over years without washing filters, because they don't know they exist.

Post# 296450 , Reply# 8   9/1/2014 at 17:13 (3,496 days old) by madaboutsebo (Midlands, UK)        

madaboutsebo's profile picture
That's so true Turbo500, I don't miss owning mine!

Post# 296451 , Reply# 9   9/1/2014 at 17:23 (3,496 days old) by dys0nb0y (Luton)        

dys0nb0y's profile picture
I've never had to do this on my DC 41 and DC 39 and to be honest I never watch the filter on them The dc 25 cyclones are not efficient and so to be honest quite crap lol

Post# 296452 , Reply# 10   9/1/2014 at 17:23 (3,496 days old) by blakaeg (NW London, UK)        

Hi Matt8808,

That's normal I'm afraid. I've had the same thing with the Dyson DC24 that I have. Had the same with the DC04, 05 machines and the DC16 and DC35 handhelds. A good wash should help maintain the machine but I feel they never 100% restore the efficiency of the filters which is why Dyson had to replace my DC24 filters when it went in for a repair after 4 years use.

This is what the filters on mine typically look like after 1 months or so usage and it's always been that way. So that's why Dyson didn't quite tell us the truth all these years.

First pic is from use in the family home where other members had long hair.


Post# 296453 , Reply# 11   9/1/2014 at 17:25 (3,496 days old) by baglessball ()        

I would suggest checking the seal at the bottom of the inner cyclones, where it meets the flap.

Apart from that, get on the phone to Dyson and have them send you out a new one! This is not what you have paid for.

Albeit I do think that the DC07, DC14, DC41 seperate dirt better.

From experience filling a DC25 anywhere past the fill line seems to increase filter clogging big time! Not like with the older machine.


Post# 296455 , Reply# 12   9/1/2014 at 17:27 (3,496 days old) by blakaeg (NW London, UK)        

Here's wot they look like in the flat I live in now. It's almost a talc powder consistency.

I now have new filters in my machine so that's why the HEPA filters looks different from the previous pic.


Post# 296587 , Reply# 13   9/2/2014 at 06:03 (3,496 days old) by Turbo500 (West Yorkshire, UK)        
The dc 25 cyclones are not efficient and so to be honest qui

turbo500's profile picture
I'm going to remind people of this statement the next time they're singing the Dyson praises.

Post# 296598 , Reply# 14   9/2/2014 at 07:37 (3,496 days old) by parwaz786 ( )        

Yeah, well I agree with him on at but I am still a Dyson fan, they are alright if you just wash the filter every six months and dont forget.

Post# 296600 , Reply# 15   9/2/2014 at 07:42 (3,496 days old) by Turbo500 (West Yorkshire, UK)        
if you just wash the filter every six months

turbo500's profile picture
But Tayyab, this has happened to Matt's Dyson after the first wash on a cleaner owned for less than 6 months. Not acceptable.

Post# 296601 , Reply# 16   9/2/2014 at 08:24 (3,496 days old) by hi-loswitch98 ()        

Even Vax Air machines have better cyclonic separation than that! I've only had to vacuum my vax filters twice since owning it for 3 months.

Post# 296607 , Reply# 17   9/2/2014 at 08:55 (3,496 days old) by blakaeg (NW London, UK)        

hi-lowswitch98,

I used the Mach Air a few times and it really impressed me. Its my favourite cyclonic vacuum cleaner so far. That short hose at the bottom could have been better but Vax can be forgiven and the machine does not tip over when pulled.

The sound level is very pleasant too.


Post# 296608 , Reply# 18   9/2/2014 at 09:01 (3,496 days old) by hi-loswitch98 ()        

Blakaeg which model did you use? I've used the Air Original/Reach & the Air3 Reach models. They are ll very impressive & the latter has been a trooper in clearing up mess when there was bedroom moving going on.

Post# 296624 , Reply# 19   9/2/2014 at 10:46 (3,495 days old) by man114 (Buffalo NY)        

I should note, I still believe the filter and airflow is part of the problem. My original 11 amp Fantom Thunder had virtually nothing but carbon dust on the filter (and certainly no big lint) when we decided to change it after maybe 3 years of daily use back in the 1990s and it still works. I think pulling air through all those cyclones at an efficient level requires more airflow and a powerful motor, adding filters will reduce the airflow. I wonder if they didn't figure this out on the Cinetic.

Post# 296643 , Reply# 20   9/2/2014 at 12:21 (3,495 days old) by parwaz786 ( )        

Yeah, but has the suction decreased? No it hasn't. I can also guarantee that the suction will stay constant if he empties it when it is at the max line, and not wash the filter for six months. I hardly wash the dyson filters on my machines, and our dc25 animal did get dusty filters, but never lost suction

Post# 296651 , Reply# 21   9/2/2014 at 13:00 (3,495 days old) by baglessball ()        
Does anyone have much experience..

With the Vax air3?

Sometimes the cyclones capture everything. Other times it lets a whole bunch of crap through in one use. I should of taken a photo after using it today, the filter was choked, I mean caked in dust. But it was clean before I started.

I need to pay more attention to it, I'm thinking that maybe the seal isn't always seating correctly.

It's pisses me off, but it's only just for my uni accommodation so it will do for now.


Post# 296658 , Reply# 22   9/2/2014 at 13:08 (3,495 days old) by parwaz786 ( )        

Well the Dyson cyclone is more efficient

Post# 296662 , Reply# 23   9/2/2014 at 13:20 (3,495 days old) by dys0nb0y (Luton)        

dys0nb0y's profile picture
Personally I just don't like the DC 25 the cyclones are not efficient and the vax air The original is probably has got better cyclone technology then the Dyson DC 25 The VAX air 3 is absolutely terrible cyclone technology I know someone who as one and it's about a month Old it was clocked to hell cyclones were all clogged and a barely had any suction left but New Dysons have fantastic cyclone separation best ever made it hardly gets through anything my friend The Dyson DC 40 she is had it for about 2 months has to dog as five people living at her house and used once a day every day and has a full carpeted house and it's a new bill The filter is still spotless and she's never washed it. To be honest I only like Dysons new the ones you can get today sides the DC 25

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Post# 296665 , Reply# 24   9/2/2014 at 13:27 (3,495 days old) by dys0nb0y (Luton)        

dys0nb0y's profile picture
I also forgot to say all the new Dysons have absolutely fantastic cyclonic Technology only lets through like only like small particles like so small it's impossible to see

Post# 296689 , Reply# 25   9/2/2014 at 16:07 (3,495 days old) by hi-loswitch98 ()        

baglessball, I've used one a few times a week for about 3 months, & have only had to vacuum the filter several times. The only thing it lets through is hair & a little dust but even whilst it was being used when we were moving it sucked up large amounts of dust no problem & I never experienced any suction loss.

Post# 296836 , Reply# 26   9/3/2014 at 11:23 (3,494 days old) by matt8808 (Teesside - North East - UK)        
Thanks for the input guys

After reading some of your comments there is clearly no 'fault' with the Dyson as such.

I've since decided the machine is not going to be sutiable for my needs given the need for regular filter cleaning, and I have since replaced it.

This was intended to be a second machine for messy jobs that I didn't want to gunk my new Kirby up on, however the filter is more than likely going to be an issue should I expose it to any of my regular DIY projects, so I've decided to go for something more fitting to the jobs i'll expect of it in the future.

Look out for my review on the new 'eco' Henry!


Post# 296839 , Reply# 27   9/3/2014 at 11:32 (3,494 days old) by dys0nb0y (Luton)        

dys0nb0y's profile picture
Is Probably the best thing what are you going to do with it all I can't wait to see you new eco-Henry i'm thinking of getting one

Post# 296858 , Reply# 28   9/3/2014 at 13:02 (3,494 days old) by matt8808 (Teesside - North East - UK)        

I think a friend is on about buying the Dyson from me as her cheapo vax is about to die. If she doesnt it will end up on eBay as I've no use for it now

Post# 296870 , Reply# 29   9/3/2014 at 13:42 (3,494 days old) by parwaz786 ( )        

TRUAT me, your dc25 is capable of heavy domestic use, our dc25 animal was used for 2 years in a 5 bedroom multi floor house like twice a day, and with a large family, and large home, it coped, and never lost suction

Post# 296929 , Reply# 30   9/3/2014 at 18:07 (3,494 days old) by super-sweeper (KSSRC Refurbishment Center)        

super-sweeper's profile picture

Parwaz, what machine that fowls its filter in TWO uses is suitable for heavy use? The man has gone good and joined the Kirby side, it's over! Let the Kirby do what the Dyson could never do. 


Post# 296933 , Reply# 31   9/3/2014 at 18:23 (3,494 days old) by dys0nb0y (Luton)        

This post has been removed by the member who posted it.



Post# 296988 , Reply# 32   9/4/2014 at 02:19 (3,494 days old) by parwaz786 ( )        

Like mentioned, our dc25 never lost suction even with daty filterS, even more intense thT that, has been used for heavy domestic use daily.

Post# 296997 , Reply# 33   9/4/2014 at 04:39 (3,494 days old) by Turbo500 (West Yorkshire, UK)        
our dc25 animal was used for 2 years

turbo500's profile picture
Do you really think 2 years is a long life span for a machine that cost over £250 new?

We had a Panasonic in daily use in a house with 4 cats and 4 kids for 17 years. Even after that, it still worked, but my mother upgraded.

My grandmother, who has always vacuumed twice daily as she has 3 dogs, had an Electrolux 610 on the go for 11 years. She's since burnt her way through 5 Dysons before switching to a more reliable brand.

My Dad's work vacuum (Numatic) has been on the go since 1979 with no repairs and that thing gets used and abused.

2 years is really not an acceptable life span.


Post# 297048 , Reply# 34   9/4/2014 at 14:54 (3,493 days old) by parwaz786 ( )        

It never broke, I sold the Dyson actually...

Post# 297363 , Reply# 35   9/7/2014 at 05:06 (3,491 days old) by super-sweeper (KSSRC Refurbishment Center)        

super-sweeper's profile picture

Suction is not the issue here, it's the amount of rubbish Dyson's 'cyclonic technology' is failing to contain! If THAT is on the filter, imagine what's being spewed into the air! surprised



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