I have been in the field of sleep for over 17 years. The new CPAP/Bilevel machines are vastly different than the ones we used to have available. Course, I still run into the older machines, which are still running quite well. Seems that some of the newer machines do not last as long as the older models. My favorite clinical model is a 10 year old ResMed unit that is still running great. In fact I have about 4 of them in a box. In 2013 I closed the 2 bed lab I co-owned with a doctor in Georgia and boxed the units up. After 10 years of use, they were still champs.
