how to test and verify cpap machine when buying used on facebook.
Hello, I am planning on buying a used ResMed AirSense 10 AutoSet CPAP. She used it for about 1400 hours and asking for $300( is that a good price?). It does come with some accessories but I am planning on using the pillow casing. I never used one before. So when I purchase it. How can I check and verify if it is still working properly without any defect or issues? also is their way insurance provider can block the device from using since I understand some insurance provider require it to be used for certain amount of time or they will want it back.