I just started using CPAP in Dec. 07.  I am using Remstar Pro M Series by Respironics.  I am adjusting slowly because I am struggling with finding a comfortable mask that will fit my small face as I am a mouth breather.  This machine was provided by my insurance but I feel that is is too noisy for me.  I am interested in purchasing my own smaller, QUIETER machine to use at home and for traveling.  I am looking at Resmed S8 Elite, Goodknight 420G and the Probasics ZZZ-Pap.  Any hints, advice or comments on any machine would be welcomed.

I have the DeVilbiss IntelliPAP and I use it both as my every day and travel CPAP.  It is VERY quiet and it is relatively small.  I have the Goodknight 420G and 420E; they are small, but they are also quite noisy and I don't like having to use a power brick.  I have a Respironics Auto M with C-Flex that I used to use for traveling.  For convenience and noise, and even size, I don't see that much difference between the Goodknight 420 series and the Respironics M series.  My Goodknight travel cases are not nearly as nice as my Respironics or IntelliPAP travel cases.

DeVilbiss and Puritan Bennett are both well established medical equipment manufacturers, I don't think that Probasics is as well established.  Also check the warranties, they are not all the same.

Jo Toepfer wrote:

I am looking at Resmed S8 Elite

I have that machine...it is quiet to my wife and I.  Then again she used to sleep with a fan so she finds the white noise soothing.  I also don't have experience with any other machines to compare it to bit have heard it is quieter than many.

If you are used to sleeping in a dead quiet room however, you will probably find that ANY machine is loud.

Hmmm...my S7 Elite is very quiet. Anyways...DH thinks ANY machine is quiet compared to my previous snoring.


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Do not no how much quieter a machine could be than my S8, unless you could get a S8 II series.

Noise Specifications (from CPAP.com):

DeVilbiss IntelliPAP 26dBA

Puritan Bennett 420G 31-dB

Resmed S8 Elite 31-dB

Respironics M Series  31-dB


The IntelliPAP is rated 5 dB quieter than the others, and in my experience it is considerably quieter than the 420G and the M series.  I have never heard or saw a Resmed CPAP.

My RESMED CPAP can't even be heard at night. VERY QUIET!!!


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Bearded One wrote:

Noise Specifications (from CPAP.com):

DeVilbiss IntelliPAP 26dBA

Puritan Bennett 420G 31-dB

Resmed S8 Elite 31-dB

Respironics M Series  31-dB


The IntelliPAP is rated 5 dB quieter than the others, and in my experience it is considerably quieter than the 420G and the M series.  I have never heard or saw a Resmed CPAP.

For comparison:

• -80db - Underwater Nuclear Submarine Microphones listening to shrimp chewing on food at 100 Meters
• -30db - One human talking 20 miles away
• -4 TO +4 - The ticking of an ordinary wristwatch at 1 meter
• 0 - Beginning of human hearing; a mosquito 10 feet away
• 10 - Absolute Silence, ATT-Bell Labs "Quiet Room"
• 13 - Ordinary Light Bulb Hum
• 15 - A pin drop from a height of 1 centimeter at a distance of 1 meter
• 30 - Totally quiet nighttime in the desert
• 40 - A whisper
• 60 - Normal Conversation
• 85 - Begining of hearing damage
• 100 - Normal car or house stereo at max volume
• 107 - The beginning of pain at the most sensitive frequency of 2750hz
• 114 - A very large portable radio
• 120-130 Front Row at a rock concert
• 133 - Gunshot at Ear Level
• 135 - Large Train Horn
• 150 - "The Who" Rock Concert - Two 10 story stacks = 144 double refridgerator sized speakers
• 165 - Jet Airpline, Boeing 727 at takeoff
• 180 - 1 Pound of T.N.T at 15 feet
• 286 - Mt. Saint Helens volcano eruption (I actually heard this one!)

Okay, you must be super sensitive to noise and I must be one not bothered too much by noise. I was first supplied w/a Resmed S8 Elite. I LOVED it. Quiet, loved the easy access to data in the morning, BUT, I got sucked up into the autoPAP frenzy so bought a Respironics pre-M Series Auto w/C-Flex. Got as good therapy w/it as w/the Elite but REALLY missed that Resmed easy access to data so when the opportunity arose I purchased a Resmed S8 AutoSet Vantage. Really liked it and was happy to have that easy data access via the LED screen again. All three were quiet in my estimation.

BUT, my sleep doc decided that I needed a bi-level titration. So I had the bi-level titration and ended up being scripted a bi-level. I insisted on the new Resmed S8 VPAP Auto Bi-level. AND LOVE IT! Quiet, easy breathing, GOBS of data I don't even know what it means yet easily available via the LED screen.

However, IF I were still in the market for a straight CPAP I am totally intrigued by the new DeVilBiss IntelliPAP and IntelliPAP Auto. Love the design of the integrated humidifier. 3 year warranty instead of 2, the size, weight, tested quieter noise level - EXCEPT I wouldn't even consider a CPAP not fully data capable. DeVilBiss promises software by this summer but makes no mention of what data the IntelliPAP is capable of so -- its just an nice, intriguing little CPAP.

For those who do a lot of primitive camping, etc. the little Everest2 looks very interesting. Again, nicely designed integrated humidifier. I wouldn't consider it because of not being fully data capable.

Personally, I would NOT consider ANY of the Respironics M Series xPAPs. Respironics makes a darn good xPAP but the M Series integrated humidifier is such a poor design and the power brick a PITA that I'll pass until they come up w/a new series w/a better designed integrated humidifier. The pre-M series, if you can still get one, is a GREAT xPAP, any model (at least any model w/full data capability).

My priorities are entirely different than yours. Full data capability is at the TOP of my list. That gives me control of my therapy if I end up w/a lousy sleep doctor. It could happen. My good sleep doc left and the new sleep doc and I are just getting to know each other. He seems like a pretty good guy. But I don't put too much faith in ANYONE in the medical profession. He has certainly turned out to be right about the bi-level.


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Some people are like Slinkies... Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs.
Resmed VPAP Auto. Humidaire 3i, Simplicity & Micro masks, ResScan 3.4, S8 ResLink, Embla oximeter.

Have been roaming the deserts of the Southwest for 53 years and I can say from experience, that number is wacked! Must have been wind/animals when they took that reading.

WHAT?  


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CrohnieToo, I don't use a humidifier, but like you I hate a CPAP that needs a power brick.  They do that to make the CPAP smaller, but that size is deceptive because now you have to deal with a flippin' power brick.  The M series power brick isn't even a nice rectangular block, it has an odd and irregular shape.  My 420's use a wall wart, which, although still awkward, it is a whole lot better than the M series brick.

My IntelliPAP is the straight CPAP model; I use my M series or 420E when I want to get numbers.

Just reading you post - I have a Respironics M-series, the first machine that I have purchased, and am interested to know more about the comments related to the poor humidifier design.  What does this mean exactly?

Also interested to know how people are using the data to change their sleep therapy?   Are you sharing this information with your doctor?  How can it be used to improve your sleep situation?