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EVIDENCE OF AIRFIT P10 VENT OBSTRUCTION CAUSING HYPERCAPNIA
RE: EVIDENCE OF AIRFIT P10 VENT OBSTRUCTION CAUSING HYPERCAPNIA
I've become a bit lax. used to clean everything every 3 days, now more like 10 days to 2 weeks. the p10 mask frame I use the vast majority of the time is almost 3 years old. I have noticed some occasional intermittent shakiness immediately on removing the mask, usually after a nap, and I've had condensation on my upper lip (mustache). IDK if these are indicative of the problem but the surest way to fix it or rule it out is to use a water jet flosser to pressure wash the vent screens.
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RE: EVIDENCE OF AIRFIT P10 VENT OBSTRUCTION CAUSING HYPERCAPNIA
Although Resmed recommends "daily cleaning" of the vent piece/pillows, I think twice a week is sufficient.  - - You should be very safe with that!  I'd recommend a soft brush like a soft-bristled toothbrush for cleaning the vent holes... You can spray your fine sprayer from kitchen sink faucet through the holes to rinse out.  

If you ever experience water in your mask, you should be more diligent with the cleanings...  Good luck!
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RE: EVIDENCE OF AIRFIT P10 VENT OBSTRUCTION CAUSING HYPERCAPNIA
I just cleaned my vents and flushed them out with an air compressor as well....they look a little better. We recently moved to the country and there is clearly more dust in the air!!! Hopefully tonight will be a better night!!
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RE: EVIDENCE OF AIRFIT P10 VENT OBSTRUCTION CAUSING HYPERCAPNIA
Sheepless: "...the surest way to fix it or rule it out is to use a water jet flosser..."

Maybe it's overkill, but in my opinion, the flosser is the most efficient and reliable way to clean your vents.  Having looked under 250X magnification at all manner of ways to clean the vents, I am completely confident that this method will remove any residual dust as completely as possible: 100psi is really quite effective!  I am not sure brushing will do as well unless this can be confirmed with pictures. When I tried it, I still could not remove the particles that seemed pinched between layered fibers.

My vents look as clean as new with this washing and if you really like the P10, I think it is well worth the peace of mind to know it remains pristine.  I think the flosser will pay for itself just in extending the replacement cycle for the P10 frames. I don't think you would need to use the flosser more than once per week or possibly once per month because it cleans so well.  Most reports suggest there is a delay of some months--three to six---before the onset of obstruction, suggesting that it usually takes a new vent some time to accumulate enough dust to become a problem.

Alternatively, if your insurance replaces it frequently enough, then routine brushing + replacement may be good enough.  I can replace the frame every 6 month, but still have to pay a copay, and I'd rather just save the money and use it for the occassional new headgear replacement.

Some members seem fine with less rigorous cleaning methods, and, of course, many have never had any of these problems. But if you live in a more dusty environment, I'd also double up on the CPAP filter or maybe consider the hypoallergenic filters that, "are made of non-woven aqcrylic and polypropylene fibers with a polypropylene carrier, the combination of which is supposed to block even the very finest particles."

I haven't personally used these filters, but I might order some in the future.
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RE: EVIDENCE OF AIRFIT P10 VENT OBSTRUCTION CAUSING HYPERCAPNIA
now that I think about it, if the water jet wasn't your idea mdmarmd (and it probably was), I'm pretty sure I read it in this thread first, as I believe I recall you put it to the test. I should have given the proper attribution. I'll blame lingering brain fog... :-)
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RE: EVIDENCE OF AIRFIT P10 VENT OBSTRUCTION CAUSING HYPERCAPNIA
Wow!!! What a difference clean vents made!!! Great night of sleep with zero issues. I will be more diligent with the cleaning and utilize my air compressor more often!!!!
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