the F10 had two sizes of plastic frame the small fits the two small sized of seals and the large fits the medium and large seals . I believe the pink headgear straps are slightly smaller than the blue.

This is the palce to get SleepyHead software :

http://sourceforge.net/projects/sleepyhead/

Due to the technical expertise and diligent research of PaleRider we now have the latest schematic of the newest device to come out soon.

http://xkcd.com/730/

How about a ResMed AirSense 10 autoset ... would that qualify ?

your question about needing a card reader or not : Most new computers sold over the last five years have a card reader built in them. If not then you need some kind of cardreader like one of these depending on weather you have a usb port or not : http://www.amazon.com/s/rehttp://www.amazon.com/s/ref...

it is a Philips PR 560 . do they also run a cool down ?

Blower hrs are 176 total machine time 211 hrs.

After reading these posts .... I check the machine that the DME delivered to my wife 5 weeks ago, and discovered that it has 35 extra hours on it beyond the use time my wife used it. It was supplied under medicare and billed to them ... is it legal to supply a used machine and bill as new ... withou...