Reputable sellers must ask for a prescription. If they don't, they are likely operating illegally and bypassing safety standards.
Only purchase from authorized medical retailers who professionally sanitize, test, and repair devices. buy used cpap
Never use a second-hand mask, tubing, or water chamber. Always buy these brand new to ensure sterility. Safe Sources for Refurbished CPAP Machines Reputable sellers must ask for a prescription
Steer clear of Craigslist, Facebook Marketplace, and eBay. These sites often prohibit CPAP sales, and machines found there may harbor bacteria, mold, viruses , or even pests like bedbugs. or even pests like bedbugs.