PR System One REMstar Pro CPAP Machine with AutoIQ

First time using C Flex, but adjusted to it quickly. Good having the disc to send to my doctor to read. Ordering and shipping went smoothly. Have been a cpap user since 2005.

I have been using the REMstar Pro CPAP machine but not the IQ version, as a rental machine and liked it. I gave back the rental and purchased this one out of my pocket. I especially like the Auto IQ feature when I can titrate myself and reestablish the proper pressure what this machine does automatically. Well worth the price. An the service from CPAP.com is nothing short of Excellent as always.

Very quiet compared to my last one I love it

Just changed this to upgrade so I would have an intelligent CPAP to keep the air levels constant. It is really quiet, nothing significant to report after using for a few days though.

The only comment is the nozzle on the humidifier is in a position where it can be broken when transporting.

I bought this to replace an old REMstar M-series. I thought the M-series was reasonably quiet, especially after adding a "whisper cap" that I bought from CPAP.com. Well, let me tell you, if you have an old M-series machine, you don't know how much quieter life could be! The new machine is almost silent! It's taking me a while to get used to the Cflex+ versus my old machine's Cflex. My AHI numbers are slightly higher (but still acceptable), but they are decreasing night by night, so I think once I'm used to the cflex+, things will be fine (and, who knows, maybe better than with the old machine).

With over 23,000 hours of use on my previous Philips REMstar CPAP, I decided it was time to buy a new one, while the older one was still working good. After some research and with recommendations from my doctors, sticking with the Philips Respironics brand name was an easy decision. After comparing features I found the PR System One REMstar Pro model met all of my medical needs. My pulmonologist recommended the AutoIQ feature to fine-tune my pressure setting. My MD liked the Philips brand, based on his own personal use. I also like the C-Flex technology that reduces the CPAP pressure when you exhale. My previous machine produced a constant pressure, which makes your lungs work harder when you exhale. Due to the high Summer humidity I have not had a need to test the humidifier yet. Breathing on this machine is very smooth. My only gripe about this machine is the inhalation noise it produces. It makes a loud sucking sound at the air intake port on every intake breath. This was driving my wife nuts. She said it was like sleeping next to Darth Vader. Philips shrank the size of the intake port on this machine compared to my older model. The air filter is also half the size of the previous one. This increases the velocity of the air stream as it enters the machine, which increases the noise level. Note my prescription calls for 17 Cm/H2O. A lower pressure would be quieter. The solution I came up with was to cut a 4 x 5" piece of 3/4" thick foam rubber and put it over the air intake. I simply wedge it between the machine and my clock radio on my nightstand. The fit is loose so air can still enter easily. It just dampens the noise produced by the loud air intake port. This actually worked better than placing a small pillow over the top of the machine. The machine is almost totally silent now. The blower motor is also very quiet at all times. I would like to see Philips design their own intake silencer with a plastic frame and make a silencer kit that could attached to the back of this machine to dampen the intake noise. This could be offered as an option for high pressure users. Despite the noise I still gave the machine a 5-star rating, because it's an excellent machine in every other aspect. The controls are easy to work. Simply drawing in a breath turns the machine on automatically. Highly recommended by a 10-years plus CPAP user.

My previous CPAP machine was picked out by my insurance company, several years ago. I hated it. It sounded like a vacuum cleaner running near my head. I was convinced that eventually I would wind up going deaf from having to listen to that thing every night. When I bought this machine I decided to leave the insurance company out of it and pay for it myself. I am so glad I did that because I really got a winner this time. It is whisper quiet (I can hear air coming in and out of the mask but I don't really hear the machine), it is small and reasonably light, it has some nice features, integrates well with the System One humidifier, and is just easy and effective to use. I haven't tried the auto-adjusting feature (or whatever the feature is called). It wasn't something I felt I needed -- I mainly bought the higher end model because it had better data reporting than the cheaper ones (and being both a control-freak and information junkie, that appealed to me). One thing I haven't made up my mind on is the C-Flex. On the one hand, I can see where some would like the way that the pressure eases off when they exhale but personally, I rather like the consistent pressure. For one thing, I have allergies and even if I manage to get my sinuses open they rather quickly want to swell closed again. With the C-Flex turned off (or, at least, turned to the lowest setting -- I haven't figured out how to turn it off) it does a better job of keeping my sinuses forced open. If I turn the C-Flex to a higher setting, they tend to close down significantly and I wind up mostly breathing through my mouth. The C-Flex might be more welcome in Winter when the allergies aren't as active. Overall, it is a great unit.

Extremely pleased with the performance. I had an older model and this new one performs much better - quieter, smoother air flow.