Demciflex filters, the amount of dust they stop getting into the pc.

The Matrix

The Matrix

The Matrix

Associate
Joined
12 Jul 2012
Posts
974
Not sure where to put this topic, i guess its to do with cooling and air flow.

Ive got a Corsair 650D which has a removable front filter, a while back i decided to fit a 210mm Demciflex front filter just out of curiosity really to see if it would help with anything.

I put the filter in approx 1 month ago, today i decided i'd give the pc a quick wipe over and clean. I couldn't believe how much dust was caught by the Demciflex filter, i ran my finger across it and where my finger had been it had left a very clear line in between the dust. So basically all this dust had got past the Corsair front filter which has a quite fine mesh behind the grill.

I'm glad i fitted one now as all that dust would have been in my pc and all over the components, the main reason i fitted it is because i removed the internal honeycomb mesh that sits in front of the fan, 650D owners will know the one i mean, it serves no purpose and just creates noise from the fan sucking air through the large holes.

I should have took some pics to show you as you will be amazed at the amount of dust that was sitting on the filter, i'll leave it again and do it next time.
 
Last edited:
Something to consider for me, as next thing i want is to sort dust control out, i seem to have a small layer gathering on top of my gpu's giving them a nice warm jacket lol
 
The Matrix said:
Not sure where to put this topic, i guess its to do with cooling and air flow.

Ive got a Corsair 650D which has a removable front filter, a while back i decided to fit a 210mm Demciflex front filter just out of curiosity really to see if it would help with anything.

I put the filter in approx 1 month ago, today i decided i'd give the pc a quick wipe over and clean. I couldn't believe how much dust was caught by the Demciflex filter, i ran my finger across it and where my finger had been it had left a very clear line in between the dust. So basically all this dust had got past the Corsair front filter which has a quite fine mesh behind the grill.

I'm glad i fitted one now as all that dust would have been in my pc and all over the components, the main reason i fitted it is because i removed the internal honeycomb mesh that sits in front of the fan, 650D owners will know the one i mean, it serves no purpose and just creates noise from the fan sucking air through the large holes.

I should have took some pics to show you as you will be amazed at the amount of dust that was sitting on the filter, i'll leave it again and do it next time.
Click to expand...

I like to think that my house is clean as it's regularly dusted, vacuumed and the windows cleaned. But after fitting the Demciflex, I have to clean the damn thing at least once a week.

They really do trap dust and do a great job. They maybe expensive, but you get what you pay for.
 
I didn't use it for more than a few days lol. The thing's in brand new condition and currently stuck to the side of a derelict Shinobi :D

Put your hand behind the fan with and without the filter there and feel for yourself how much it restricts (and that's when it isn't clogged up). You can feel a similar difference before and after removing case grills.

I'm not saying it results in a drastically hotter pc or anything and the pro's certainly outweigh the cons at the end of the day.
 
Is a derelict a distant relative to a dalek?

So you see the use of filters as a con and removing case grills as a pro?
In other words more airflow is better than keeping dust and hair and such from getting into computer?
 
If Dalek's have distant cousins that lurk in spare rooms disguised as hacked up, unused PC cases, then yeah :D

I see the dust catching properties of a good filter as a pro and the airflow restriction they add as a con.
If you have both grills and dense filters, perhaps it's time to break out the nibbler/dremel etc?
 
Last edited:
Uncle Petey said:
If Dalek's have distant cousins that lurk in spare rooms disguised as hacked up, unused PC cases, then yeah :D

I see the dust catching properties of a good filter as a pro and the airflow restriction they add as a con.
Click to expand...
ROHL.

Spoken like a true politician. :D

So I ask you oh great CPM (Computer Political Member) :rolleyes: No more hedging around your derelict or dalek. You have to answer the question. Should we remove filters to increase air flow? :p

I vote for filter as necessary but remove as much other restriction as possible.
 
doyll said:
So I ask you oh great CPM (Computer Political Member) :rolleyes: No more hedging around your derelict or dalek. You have to answer the question. Should we remove filters to increase air flow? :p
Click to expand...

Not unless you like more dust in your pc.

I vote for filter as necessary but remove as much other restriction as possible.
Click to expand...

I agree. Lose the grills, put a decent filter there instead.
 
If you have one small, slow fan as an intake with a filter, your lack of airflow is going to be a bigger enemy than the dust in your case.

If you have several intakes, the filters shouldn't matter as much. I've got two intake fans running at medium speed, and even with the filters they get enough air into the case to keep my CPU at 40 degrees load.
 
The key is to have fans that are able to overcome the resistant.

The resistance created by filters and vent grills is the reason I use "cooler" fans (higher static pressure fans) that will still move air and not "case" fans that will likely just spin and move little or no air because the are "free flow" fans... A fan's ability to move air creates resistance by sucking and pushing.. both of which change the barometric pressure; lower on intake and higher on exhaust.
Sucking air through grill and filter on intake = even lower pressure.
Pushing air into HDD cage = even more pressure.
The the pressure differential between intake and exhaust of fan is the static pressure difference.

Static pressure rating (mm/H2O) is the maximum level fan can push water up the tube.. The weight of that water is the actual psi difference between ambient pressure and what fan can push before it quits flowing air.

Airflow (CFM) is the maximum amount of air fan flows with no pressure differential.

Somewhere in the middle is what fans do in most applications.
 
I still see a slight coating of dust on my PSU and im using positive pressure and demcfilters on a HAF 912 plus.

To be fair the outside is always coated in very fine dust so its working but god it just murders my airflow.I gotta see if the corsair psu is getting air as it feels warm but i dont feel any air coming out the back.

And my side panel simply cannot push any air through the demcfilter at all.I thought black apache was a good fan with good static pressure but its frankly useless.Zero and i mean none comes through at all.Its actually spinning air out sideways but none forward.

So i dont know the front 120mm's are fine but thier not pushed right up againsst my front filters either.The top 120mm is fine so im guessing its the 140mm being crap.I might try push pull config with the side panel or try corsair's new SP120's.
 
You've just backed up why I use "cooler" fans in my cases.

I used FN053 (50.5cfm & 1.32mmH2O) for awhile. Apache Black is 57.5cfm & 2.64mmH2O (doubt either really are as good as spec). Not near as good as you would think from their specs.
My HDD's were 40-45c with them @850rpm as intakes. Now they are 30-38c with TY-140's @ 700rpm in same place with same filters (650rpm w/filters removed). I could hear Akasa's but not TY-140's, even at 800-850rpm. 900rpm I "think" I might hear them, 950rpm they are just loud enough to know they are running.. Still quieter than water movement in heating radiators, ;)
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom