I went through the search about five years ago. I called several
Organizations the cpap assoc was not around or I didn't find. Everyone that would accept it wanted it shipped at cost to them. Instead I put out on Next door in Sacramento received both clap and BiPap. I gave them to people who needed them and was disgusted by several people who were reselling them. Eventually I was about to leave for NC and my pulmonary association center they had someone hand to lend short term to newly diagnosed patients waiting for insurance to cover one. And when they had surplus sent them back to manufacture
Accessories are available online. It's possible to clean the machine and instructions are online. I squirrel in on a problem and enjoy the but not everyone is the same.