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Looking for Gently Used CPAP Machines and BiPAP Machines?


Used CPAP Machines For Sale

1800CPAP.com offers low prices on open box specials for CPAP and BiPAP machines. Contact one of our customer service representatives (1-800-274-1366) to find out what used CPAP machines we have in stock. These CPAP machines have low hours (Low Miles) used on them and still carry the remaining balance of factory warranty.


  • ALL CPAP and BiPAP Machines are thoroughly disinfected and sanitized.
  • All CPAP and BiPAP settings are reset to factory default.
  • Once we have received a copy of your RX, we will set the CPAP settings to your prescribed pressure(s).
  • All CPAP and BiPAP Machines are calibrated
  • 1800CPAP.com sells only new and unused ResMed products
  • New CPAP machine filters and tubing are included!

Q: Why does 1800CPAP.com carry used CPAP machines?

A: Not all CPAP users are compliant to CPAP and thus discontinue therapy. Our customers that purchase Rest EZ return insurance can return their used CPAP back to 1800CPAP.COM within a certain time frame and these CPAP machines become “Open Box Specials”.

Q: How much of a discount can I get off of the original price of a new CPAP machine?

A: Product lines vary depending on what we have in stock and by model type. For example a Respironics or Fisher Paykel Auto CPAP will vary in price compared to an entry level CPAP machine. A typical Open Box Discount is a 20% savings from our everyday low prices. However, discontinued models or models with high hours are dramatically discounted in price.

Q: Why are the Open Box Specials not listed with model and price on the website?

A: Our return rate for CPAP machine is very low, thus our inventory of used CPAP machines are low and typically sell sooner than we can get them listed. It is recommended to contact one of our customer service agents to find out what is in inventory.

Q: Can I buy and extended warranty for my used CPAP machine purchase?

A: We do offer an extended 1 year warranty on qualifying models for $199.00. Contact a customer service agent to find out what is in stock.

Search through all of our pre-owned inventory of certified CPAP and BiPAP machines.
Pre-Owned CPAP Machines.