These authorized online retailers specialize in certified pre-owned and refurbished units that have been cleaned and inspected: Is It Safe to Buy a Used CPAP Machine? - Sleep Foundation
Buying a used CPAP machine is a viable way to save hundreds of dollars, but it carries significant hygiene, safety, and legal risks. In the United States, CPAP machines are , meaning they can only be legally sold and purchased with a doctor's prescription . Summary of Key Recommendations
Only purchase from authorized medical retailers who professionally sanitize, test, and repair devices.
Reputable sellers must ask for a prescription. If they don't, they are likely operating illegally and bypassing safety standards.
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.
