The new Respironics System One CPAP comes standard with an SD card for data storage. All sleep data is conveniently and accurately record on this SD card for easy download to EncorePro 2.1 (or greater) software. This is a big improvement over the machine's M-Series predecessor which used a special card reader to upload sleep data. System One also features a new passive humidity feature and an improved water chamber(see below). Made in USA.
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