Uncut filter media sheet source

[Apap]

Hi, brand new to using a machine - ResMed AirSense 10 programmed for APAP 4-20 / full face (nose/mouth) mask.

I'm looking for information or links for larger sized filter media for my Airsense 10. I.e. larger than the supplied or after market replacements. If anyone has industry knowledge of what type (dacron etc.) and thickness/density the existing filter media is similar too that would be appreciated. I'll cut cut to desired size.
I realize almost anything would work but the closer to spec I get the less resistance I create.

I don't suffer from allergies I'm only interested in media that blocks the type of dust etc. that will wind itself around fan and/or bypass and aspirate.

It's only been a few hours of ownership and I can see plain as day that the filter door on the Airsense 10 does not properly seal around the cheap filter. This has nothing to do with how you are to fit filter or a misaligned molded or installed door/unit, rather it is a glaring design flaw. The filter is simply too small and thin. If you would like to see what I am speaking bout - Install filter however you like, close door and then shine a high powered flashlight through door holes and look through the edges of the door and you will see the edges of the little filter allow plenty of unfiltered air to pass around filter because they don't touch or are not clamped to case.

I have searched online but can't seem to find much in the way of posts on this issue. I know for a fact that this is not specific to only my machine because in the class they made me take I helped the nurse by helping some of the older folks and less manually dexterous around me by connecting power supplies, hoses, showing how to open filter/SD doors etc. After I saw the issue with my machine I casually asked to inspect the others (without saying why) and saw exact same issue.

One solution may be to double up the stock/aftermarket filters as a thicker filter would help abridge the side gap but it's not quite solving the issue of the filter needing to be slightly wider in the other dimensions.

If there are other threads about this I would also appreciate a link. Perhaps I'm using the wrong search terms? Additionally - what other forums are there where the members are technically comfortable modifiers?

Many Thanks !

[chunkyfrog]

. . . and what was in the air you breathed BEFORE you got on cpap?
It is the EXACT, SAME AIR.
We know that heavier, denser material would stress the motor, causing failure,
and VOIDING THE WARRANTY.
If you are concerned, there are antibacterial filters to place in line with the hose.
Be sure to set the machine to compensate for the extra load;
and change them as required. (Often)
Your machine has NOT been "set".
The 4-20 range is the default, not ideal for almost EVERYBODY.
Stick around, we can help you get it right.

[palerider]

programmed for APAP 4-20

That's just the default machine limits, not set at all, and almost certainly, not right for your needs.

It's only been a few hours of ownership ...a glaring design flaw.

Call up Resmed and suggest a design revision, then.

[Goofproof]

Maybe take some courses in design and engineering, and build a XPAP to suit you. First needed course would be how filters work. Factory filters are designed to work correctly for flow and dust removal. Jim

[juaquin]

the filter door on the Airsense 10 does not properly seal around the cheap filter

It may not be a perfect seal, but it does relatively well. Enough to pick up plenty of dust and smoke. For example: http://cpaptalk.com/viewtopic.php?f=1&t ... 5#p1275865

Really, the purpose of the filter is to remove stuff that may bind up the blower, not give you purified air. The existing setup is perfectly fine for removing most dust, hair, etc.

[Apap]

wow.

I guess Apnea does cause brain damage.

First off retards learn to read instead of hanging around the forums all day waiting to respond with useless drivel because you either don't know the actual answer to the question asked and somehow feel inferior and are insulted that someone pointed out something you never bothered to check.

No shit Sherlock - that the filter will get dirty because air is passing though it. A fair amount is also bypassing it - that is the point here. The air that we already breath, or breathed before we used a machine during sleep, was through our nose and mouth, not a 4ft long relocated proboscis. Jeez, do I really have to dumb it down for the three of you? These machines can resides on anything from night stands to chairs to the floor etc. etc. Besides not wanting to aspirate dust balls, cat hair, dog hair, spiders.... whatever because of a crappy design - (people travel & also use in foreign environments too) I clearly stated in my post "I'm only interested in media that blocks the type of dust etc. that will wind itself around fan and/or bypass and aspirate".
But hey go ahead and kill the messenger and stick your heads back where they were before. Astonishingly one of you even mention the problem this will be for the internals of the machine and then in the next breath (though I doubt any of you are getting enough oxygen) says the existing set up if 'fine'. Then the next clown says "Factory filters are designed to work correctly for flow and dust removal" uh, no dumbass - no filter will do its job properly unless its perimeter is sealed and the inlet air is forced through the intended media.

And what is this garbage about my 'machine has not been set'? Are any of you doctors? The machine is set for Apap and the two doctors & the training nurse all explained in detail that my machine was programed to fluctuate in that range to meet my needs and conditions.

If I want to listen to the Three Stooges I'll go over to YouTube, next time don't answer my posts and let the grown ups talk, I didn't come here to suffer your incompetence.

[Mark55]

This should be good!

[Pugsy]

Please refrain from personal name calling and derogatory names and that sort of attack in your response.
Disagree with the message if you must but personal attacks are a no-no.

If you need help in composing something without using words like stupid, retard (I hate that word), moron....etc...someone will be glad to fix your posts for you so that those words are omitted.

[palerider]

wow.

I guess Apnea does cause brain damage.

Well, yes, studies show that: https://www.medscape.com/viewarticle/90 ... 4479&faf=1

Fortunately, most of us here are well treated, unlike, apparently, yourself.

First off retards

I suppose that if we wanted to be charitable, we could assume that you're not at all well treated, and your wholly inappropriate responses are due to that, and your apparent brain damage.

a 4ft long

Do you have other complete and abject failures at measuring physical aspects of the world around you?

machines can resides on

Failed basic grammar in school, eh?

I clearly stated

That's certainly a point open to debate.

And what is this garbage about my 'machine has not been set'? Are any of you doctors?

Why, yes, some of us are, and many more of us know how to read manuals, and are able to comprehend what the *factory defaults* of the machine are... Something you seem not to be able to do:

The machine is set for Apap and the two doctors & the training nurse all explained in detail that my machine was programed to fluctuate in that range to meet my needs and conditions.

Your level of ignorance and incompetence doesn't reflect well on you.... much less your ability to engage in a civil discourse.

If I want to listen to the Three Stooges I'll go over to YouTube, next time don't answer my posts and let the grown ups talk, I didn't come here to suffer your incompetence.

That "How to Win Friends and Influence People" book you bought? You might as well take it back, it's not doing you ANY good at all.

"I'm Palerider and I disapprove of the message I've quoted".

[LSAT]

You indicated that you just started using the CPAP...I don't know how old you are but for all the years you have been alive, you have been breathing air without a filter. regardless of how bad you think the filter is...it's better that the air you were breathing before CPAP. Similar filters have been used in CPAPs for 20+ years and users have survived without your weird ideas. Call ResMed if you are unhappy and leave us alone. If these filters were allowing damage to the fan or motor, the manufacturer would fix the problem to avoid warranty replacements and repairs.

[chunkyfrog]

You already have met the three Stooges.
Your MEDICAL TEAM.
4-20 is NOT a setting. It is the default straight from the factory.
It is practically GUARANTEED to be a PITA.
They are the morons you trust.
Enjoy your choices.
We could help you, but if you rather not, whatever.
Have a nice day, sweetie.

[TropicalDiver]

APAP:

You have very strongly held beliefs. Are you at all open to other perspectives?

Personally, I have no idea how much air bypasses the filtration nor what the practical consequences are of whatever rate that is in terms of motor life, etc.

I think people are making two points to you. First, without xpap, you are breathing otherwise unfiltered air. I understand your point about the source of the air now starts where the unit intake is rather than starts where your nose/mouth are. Of course, particulates are floating around in the air always - and bedding might be a source of them as well. Interesting question about the relative dust load of an intake located on a nightstand vs breathing directly from your mouth/nose, I have no idea.

Second, your setting of 4-20, while a default, is not optimal in most cases. The idea of the default is you just let the machine take care of adjusting pressures as needed (up or down). That seems like a great idea -- especially when your pressure needs might vary based on sleep stage, sleeping position, medication changes, whether you have a cold, etc. Right?

Indeed that is the beauty of an apap. Unfortunately, there are two wrinkles. First, many users feel like they can't get enough air at 4. If that isn't you, great. Second, for almost all users, 4 is not enough pressure. But, the machine will account for that and adjust to correct, right? Yes -- but really to prevent future happenings rather than stopping the current one, In other words, not instant and not perfect. And the cycle can happen way more than once per night. And, AFAIK, the machine does not apply what it learned last night to tonight.

Most users get better objective and subjective sleep when the lower number is sufficient to take care of your pressure needs most (but not all) of the time. Perhaps you are one of the lucky few? (If we are quoting sources, that would be my sleep doc, when he explained my settings and the results of my split session sleep study. Or most of the users who post here. Take your pick.)

Note: Some of my above comments would not be accurate if we are talking about a certain category of machine focused on treating central apneas. But you don't have that king of machine.

[zonker]

is there no one here who can answer the OP's question? in case you forgot-

"I'm looking for information or links for larger sized filter media for my Airsense 10. I.e. larger than the supplied or after market replacements. If anyone has industry knowledge of what type (dacron etc.) and thickness/density the existing filter media is similar too that would be appreciated. I'll cut cut to desired size.
I realize almost anything would work but the closer to spec I get the less resistance I create."

i have this feeling that this has been discussed before. i wish my search skills were stronger so i could find it and link to it. as i recall, pugsy had a hand in the discussion. and even palerider.

then again, it may be all in my head!

[flightco]

CF,
You have the load on a fan backwards (I know this from several years in HVAC, also many years ago). The load on a fan motor comes from air; when a filter is clogged there is no air to push and the load is reduced. In the 70's I worked in HVAC at a large hospital. The way we would determine when the filters needed changing (the filters were huge and cost several hundred dollars 1970's money) was to put an ammeter on the motor leads. I don't remember the exact numbers but it was when the amps dropped that the filter was dirty, when replaced the amperage goes up. Common for folks to think the motor works harder if the filter is clogged but the misconception comes from thinking the motor must pull the air, it doesn't, if the filter is "completely" clogged it will just spin with less current draw than with a functioning filter.

I know this has nothing to do with the OP but thought I would comment on the dirty filter making the motor work harder. There is a negative on the motor with a dirty filter and that is that the air flow is what cools the motor, no air flow no cooling. If you filters were completely clogged, we would probably know it

[flightco]

Next he will tell us how he discovered a SoClean to magically clean all the dust from inside the machine