This is a Remstar Plus with a humidifier. Although it is about 3 years old it is brand new and used for a whopping total of 45 minutes. I could not sleep with a mask on. It has a full nose / mouth mask, hose carry bag. It also has brand new never opened an additional mask, hose and filters. Supposedly this is the caddy of machines.
Asking $200.00
These units went for $300.00 new without masks, hoses, and filters. They are no longer made because they came out with a portable that could be worn.
Here you can find some reviews.
REMstar Plus CPAP Machine