Is It Safe to Buy a Refurbished CPAP Machine? An RRT's Honest Answer
Is It Safe to Buy a Refurbished CPAP Machine? An RRT's Honest Answer
The question comes up constantly: Is a refurbished CPAP machine actually safe to use, or am I taking a risk? It's a fair question, and it deserves a direct answer — not a vague "it depends" that leaves you no better off than before you asked.
Here's the honest answer: a properly refurbished CPAP machine from a reputable source is safe, clinically effective, and one of the smartest purchasing decisions a sleep apnea patient can make. The key phrase is "properly refurbished from a reputable source" — and that's where the real information lives.
As a licensed Registered Respiratory Therapist who works with CPAP equipment daily, I'll break down exactly what refurbishment means, what to look for, what to avoid, and how to get the same therapeutic outcome from a refurbished machine as you would from a brand-new one.
What Does "Refurbished" Actually Mean?
The term refurbished gets used loosely, which is part of why there's confusion. In the CPAP world, it can mean several different things depending on the seller:
Manufacturer-Refurbished
Returned to the original manufacturer (ResMed, Philips, Fisher & Paykel, etc.), inspected against original factory specifications, repaired as needed, and repackaged with a manufacturer warranty. This is the gold standard of refurbishment. These units are functionally equivalent to new devices and come with documented quality assurance.
Professionally Refurbished by a Licensed DME
Returned or traded-in units inspected, cleaned, and tested by a licensed Durable Medical Equipment supplier with trained biomedical or respiratory therapy staff. All patient-contact components (mask, tubing, humidifier chamber, filters) are replaced with new parts. The machine's internal components are tested against manufacturer specifications. Therapy data from the previous patient is wiped. This is what a reputable DME like My Respiratory Company does with every unit.
"Refurbished" by an Unverified Reseller
This is where the risk lives. A private seller or unverified online marketplace listing a CPAP as "refurbished" may have done nothing more than wiped it down and reset the settings. No component replacement, no internal inspection, no data wipe, no quality testing. This category is what gives refurbished CPAP a bad reputation — and it's avoidable with basic due diligence.
The Clinical Reality: What Gets Replaced Matters Most
From a respiratory therapy standpoint, the safety of a refurbished CPAP machine comes down to one question: which components were replaced?
CPAP machines have two categories of components:
Internal Components (the machine itself)
The motor, blower, pressure control circuitry, flow sensors, and electronics. These are engineered for 5–8 years of nightly use. A machine with 1–2 years of prior use from a previous patient has significant remaining service life. Internal components don't come into contact with the patient and don't carry infection risk. They either work or they don't — which is why function testing matters.
Patient-Contact Components (consumables)
The mask, cushion, headgear, tubing, humidifier water chamber, and filters. These absolutely must be replaced with new components on any refurbished unit. Full stop. A reputable refurbisher replaces every single patient-contact component before resale. If a seller can't confirm this, don't buy from them.
When patient-contact components are replaced and the internal components are function-tested, the refurbished machine a patient receives is therapeutically equivalent to a new machine — the motor and electronics are identical, and everything the patient touches is brand new.
Infection Risk: The Real Answer
The most common concern patients raise is infection: Could I get sick from a machine that someone else breathed through?
Here's the clinical reality. The air path in a CPAP machine goes from room air → motor → internal tubing → humidifier chamber → external tubing → mask. None of the patient's exhaled breath travels back into the machine — the mask has a built-in exhaust vent that releases exhaled air directly to the room. The machine is a one-way pressure source, not a rebreather circuit.
The components that could theoretically harbor biological contamination are the water chamber, external tubing, and mask — all of which are replaced with new parts in a proper refurbishment. The internal components that aren't replaced have never been in contact with the previous patient's airway.
Properly refurbished CPAP machines carry no meaningful infection risk when patient-contact components are replaced. This is consistent with how biomedical equipment is handled in clinical settings — the distinction between patient-contact and non-patient-contact components is the governing principle.
What to Look for When Buying Refurbished
Seller Credentials
- Licensed DME supplier: Look for a state-licensed Durable Medical Equipment provider. Licensing requires compliance with quality standards that unverified resellers don't face.
- Respiratory therapy expertise on staff: A seller with licensed RTs or biomedical technicians inspecting equipment understands clinical specifications, not just cosmetics.
- Physical business address: Avoid anonymous online listings with no verifiable business location.
Component Replacement Documentation
A reputable seller should be able to tell you exactly which components were replaced. At minimum: mask/cushion, headgear, tubing, humidifier chamber, and filters. Ideally they also confirm the unit's therapy hours (most machines log total operating hours) and the results of functional testing.
Data Wipe Confirmation
All prior patient therapy data — usage history, pressure history, AHI records — should be cleared from the device. This is both a privacy matter for the previous patient and a clean-slate issue for you. Confirm the device has been reset to factory defaults.
Warranty
A seller confident in their refurbishment process offers a warranty. At My Respiratory Company, every refurbished CPAP and BiPAP machine comes with a 1-year warranty. If a seller won't warranty their refurbished equipment, that's a red flag about their confidence in the product.
Current, Non-Recalled Models
Verify the model is not subject to an active recall. The Philips Respironics recall (2021) affected DreamStation, System One, and REMstar models manufactured before April 2021. Do not purchase a recalled Philips unit regardless of price. ResMed AirSense 10 and AirSense 11 units are not subject to this recall and are safe to purchase refurbished. For full recall details, read our article on the Philips CPAP recall.
Cost Comparison: Refurbished vs. New
| Machine | New Price (approx.) | Refurbished Price (approx.) | Savings |
|---|---|---|---|
| ResMed AirSense 10 AutoSet | $700–$900 | $300–$500 | 40–55% |
| ResMed AirSense 11 AutoSet | $900–$1,100 | $450–$650 | 40–50% |
| ResMed AirCurve 10 BiPAP | $1,200–$1,800 | $600–$950 | 40–50% |
| Philips DreamStation 2* | $700–$900 | $350–$500 | 40–55% |
*DreamStation 2 only — not earlier Philips models subject to recall
For patients paying cash without insurance coverage, the savings on a properly refurbished machine are significant and clinically meaningful — the difference between affording therapy and not affording it. And since the therapeutic outcome is equivalent, there is no clinical downside to choosing refurbished from a reputable source.
For a deeper look at cash pay versus insurance for CPAP, see our guide on CPAP cash pay vs. insurance.
Common Myths About Refurbished CPAP Machines
Myth: Refurbished machines wear out faster
Reality: CPAP machine lifespan is determined primarily by motor hours. A unit with 1–2 years of prior use has thousands of remaining service hours. ResMed's AirSense series motors are rated for 5–8 years of typical nightly use. A 1-year-old machine has used a fraction of its designed lifespan.
Myth: You can't get a prescription set on a refurbished machine
Reality: A licensed DME supplier sets your prescribed pressure on the device before it reaches you, just as they would with a new machine. The pressure setting process is identical regardless of whether the hardware is new or refurbished.
Myth: Refurbished machines won't connect to the myAir app
Reality: Connectivity features (cellular, Bluetooth) are hardware-based and function identically on refurbished units. After the device is factory-reset and registered to your account, myAir integration works exactly as it does on a new device.
Myth: Insurance won't cover refurbished equipment
Reality: This is partially true. Most insurance companies and Medicare require new equipment when billing through DME coverage. However, if you're purchasing out of pocket — which many patients do, especially those who've already met their deductible or who find cash pricing lower than their cost-sharing — refurbished is entirely appropriate.
Who Benefits Most from Buying Refurbished?
- Uninsured or underinsured patients who need effective CPAP therapy without the $700–$1,100 new-device price tag
- Patients whose insurance only covers one machine and who want a backup unit for travel or power outages
- Patients upgrading from an older machine who want a newer model's features (Auto algorithm, app connectivity) without full new-device cost
- Patients in the Philips recall situation who need an immediate replacement while their remediation claim is pending
- Anyone who values cost efficiency and understands that the therapeutic outcome from a properly refurbished machine is clinically identical to a new one
Frequently Asked Questions
Can I use a refurbished CPAP machine with my own prescription?
Yes. Your prescription specifies a pressure (or pressure range for APAP) that is programmed into the device. A licensed DME supplier programs your prescribed settings before shipping. If you're purchasing from My Respiratory Company, we set your prescription on the device — you receive a ready-to-use machine, not one requiring clinical configuration on your end.
How do I know how many hours are on a refurbished CPAP machine?
Most CPAP machines log total cumulative operating hours in a service/clinical menu. A reputable seller should disclose this information. For context: at 7 hours of use per night, a machine accumulates approximately 2,550 hours per year. A machine with 5,000 hours has roughly 2 years of prior use — still well within its designed service life if internal components are intact.
What warranty should I expect on a refurbished CPAP?
A minimum of 6 months from a reputable seller; 1 year is standard from licensed DME suppliers committed to their refurbishment quality. My Respiratory Company provides a 1-year warranty on refurbished CPAP and BiPAP machines. Avoid any seller offering no warranty on refurbished medical equipment.
Is a refurbished CPAP different from a used CPAP?
Yes — meaningfully. A used CPAP is one sold as-is with no inspection, no component replacement, and no warranty. A refurbished CPAP has been inspected, cleaned, had all patient-contact components replaced, been function-tested, and carries a warranty. The distinction is significant. Never purchase a used CPAP from a private seller; always purchase from a licensed DME with a documented refurbishment process.
Are refurbished BiPAP machines also safe to buy?
Yes, by the same principles. BiPAP machines are the same category of equipment, have the same component structure, and are refurbished using the same process. The higher new-device price of BiPAP machines ($1,200–$3,500) makes the cost savings on refurbished units even more significant for cash-pay patients.
The Bottom Line
Refurbished CPAP machines from a licensed, reputable DME supplier are safe, effective, and an excellent value. The machine's therapeutic function — delivering precisely controlled positive airway pressure — is determined by internal components that have significant remaining service life. The components that matter for hygiene and patient safety are replaced with new parts. The outcome is identical to a new machine at a fraction of the cost.
The only refurbished CPAP machines that carry real risk are those sold by unverified resellers with no documentation, no component replacement, and no warranty. Avoid those. Buy from a licensed DME with respiratory therapy expertise, clear documentation of what was replaced, and a warranty that backs their work.
Browse our refurbished CPAP and BiPAP inventory — every unit is inspected, fully re-componented, and covered by our 1-year warranty. Not sure which machine fits your prescription? Our $49.99 Respiratory Therapist Consultation matches you to the right device based on your sleep study data and clinical needs. And if you have an older machine to trade in, our CPAP buyback program puts cash toward your next device.
Written by Yashil Bhatt, RRT — Licensed Registered Respiratory Therapist with ICU and critical care experience and owner of My Respiratory Company.