Key Takeaways
  • Buying a used CPAP machine that’s been refurbished can be a way to save money while still receiving effective treatment, provided you buy from an authorized seller.
  • Authorized sellers ensure that the CPAP machine is refurbished, which means it has been cleaned and tested, with worn parts replaced.
  • Downsides to used CPAP machines include a lack of manufacturer warranty, potential hygiene concerns, deteriorating components, and unknown machine history.
  • Avoid buying a used CPAP machine from individual sellers, online marketplaces, and anywhere that doesn’t require a prescription.

CPAP therapy is the leading treatment for obstructive sleep apnea (OSA), but the cost of a new CPAP machine can be an obstacle for many people. While buying a second-hand model might be an easy way to save money, there are downsides. 

To help you make an informed decision, we’ll walk you through the pros and cons of buying a used CPAP machine. We’ll also answer common questions you might have about used CPAP machines, such as the best place to buy one and whether they’re covered by insurance.

sleep-doctor-at-home-sleep-test-4

Exploring CPAP Machines — But Haven’t Been Tested Yet?

Start with our easy, at-home sleep test. It’s stress-free and effective. Get results within a few days.

Get Tested

Is It OK to Buy a Used CPAP Machine?

Buying and using a second-hand CPAP machine can save you money, but it’s important to buy from a reputable, authorized seller, and to coordinate with your physician to make sure that the model meets your needs.

A CPAP machine is a complex medical device that requires personalized settings, regular upkeep, and careful cleaning to be sanitary and effective. Buying a used CPAP machine from an individual instead of an authorized seller bypasses the steps to ensure that the device is safe, properly functioning, and calibrated correctly for your unique needs. 

Used vs. Refurbished CPAP Machines

While second-hand CPAP machines sold by an authorized CPAP retailer can be described as used, it’s more accurate to call them refurbished. 

CPAP machines that have been properly refurbished are available from both brick-and-mortar and online CPAP retailers. These units are the safest option if you choose to buy a used CPAP machine.

Ensuring that a refurbished model is safe to use involves cleaning the CPAP machine inside and out, replacing worn or unsanitary parts, checking to make sure that its pressure settings are accurate and reliable.

CPAP machines that have gone through this process will be described as refurbished by the retailer. However, some unscrupulous second-hand sellers may co-opt this language, so it’s important to double-check that you’re purchasing your used machine from an authorized CPAP retailer.

Pros and Cons of Buying a Used CPAP Machine

Buying a used CPAP machine can be a good value, but it’s important to weigh the advantages and disadvantages before making a decision. 

ProsCons
  • Cost can be significantly lower than that of a new CPAP machine

  • Lower prices may make it easier to get a machine with the features you want

  • Makes it possible to replace your favorite model that has been discontinued by the manufacturer
  • Safety and cleanliness issues are possible when buying from a less-than-reputable source

  • Lacks the support and peace of mind of a manufacturer’s warranty

  • No record of previous pressure settings, repair history, or maintenance

  • May not include up-to-date features that can make CPAP therapy more comfortable

  • Reduced performance and increased failure risk

How to Buy a Used CPAP Machine

The safest place to buy a refurbished CPAP machine is an authorized CPAP retailer. These sellers will verify your prescription and follow the U.S. Food and Drug Administration (FDA) rules for medical device sales. Brick-and-mortar CPAP stores offer the chance to check machines out in person, while online CPAP retailers usually have a wider selection and lower prices. 

You may sometimes see used CPAP machines available on sites such as Facebook, eBay, or even Amazon. These listings are generally against the terms of use for these sites, but they sometimes slip through. However, it isn’t safe to buy a used CPAP machine from these sellers. It also isn’t advisable to buy a used CPAP machine at a garage sale or flea market.

Do You Need a Prescription to Buy a Refurbished CPAP Machine?

The FDA classifies CPAP machines as a class II medical device, which means that they can only be purchased with a doctor’s prescription. This is true for both new and refurbished devices, which is one reason why it’s important to purchase used CPAP machines from an authorized CPAP retailer.

Can You Use Insurance to Buy a Refurbished CPAP Machine?

Insurance coverage for refurbished CPAP machines varies, depending on your provider and policy. Medicare doesn’t cover refurbished CPAP machines. Their standard policy covers new equipment that you rent to eventually own, with replacements covered every 5 years.

If you’re considering a refurbished CPAP machine, call your provider directly to get all the details about their coverage for CPAP machines and whether you’re able to purchase one from an authorized seller. Many CPAP retailers have experience with this process and may also provide additional guidance. 

Health savings accounts (HSA) and flexible spending accounts (FSA) can be used to purchase durable medical equipment like CPAP machines. This often covers refurbished CPAP machines purchased from an authorized retailer, but it’s important to double check your account’s policies before purchasing to ensure you fulfill any required conditions.

Where Can You Buy a Refurbished CPAP Machine?

Many authorized medical device sellers that sell new CPAP machines also offer a limited number of refurbished options. Sometimes you may need to ask the seller specifically, especially at brick-and-mortar stores. There are also a number of authorized online stores dedicated exclusively to refurbished medical equipment which may offer a better selection. 

Reputable refurbished CPAP retailers will require a valid prescription before completing your purchase. They’ll also provide transparency and documentation of their refurbishment process and often offer warranties and clear return policies. Avoid individual sellers and online marketplaces or anywhere that doesn’t verify your prescription before selling. 

Tips for Buying a Used CPAP Machine

Here are a few tips to help ensure that your experience buying a used CPAP machine is smooth and safe. 

  • Choose authorized CPAP suppliers: Avoid online marketplaces and individual sellers. 
  • Make sure the seller asks for a prescription: This ensures they’re following FDA regulations and are a legitimate seller. 
  • Check warranties and return policies: While you won’t get a manufacturer warranty, many sellers offer their own. 
  • Ensure proper mask fit and accessory compatibility: Make sure replacement parts are available for your model. 
  • Consult with your physician: Make sure that the model you choose supports your treatment plan and pressure settings
  • Check with both your insurance company and retailer: They can help explain your options for coverage and reimbursement. 
  • Consider buying in-person: This way, you can inspect the machine’s condition and try it out before your purchase. 

Frequently Asked Questions

Can you use someone else’s CPAP machine?

It generally isn’t recommended that you use someone else’s CPAP machine. Each machine requires a prescription that specifies pressure settings and instructions based on the individual. If you use a machine that belongs to someone else, you may not receive the right treatment. There’s also a risk that the machine will be unsanitary.

Is it legal to sell used CPAP machines?

Authorized medical equipment suppliers can legally sell used CPAP machines that have been refurbished. However, CPAP machines require a prescription, which means that machines sold by individuals on internet marketplaces or garage sales are likely violating FDA regulations.

Who buys used CPAP machines?

Since CPAP machines can cost upward of $1,000, some people choose to buy refurbished machines from authorized retailers in order to save money. Others may purchase refurbished equipment because their insurance has high deductibles, because they need a backup machine, or because their favorite model was discontinued by the manufacturer.  

What can you do with your used CPAP machine?

If you have a used CPAP machine that you no longer need, you can donate it to organizations that refurbish and redistribute medical equipment, or check if your DME supplier has a take-back program. If it isn’t in working order, you can bring it to your local electronic waste recycling facility.

Still have questions? Ask our community!

Join our Sleep Care Community — a trusted hub of product specialists, sleep health professionals, and people just like you. Whether you’re searching for the perfect mattress or need expert sleep advice, we’ve got you covered. Get personalized guidance from the experts who know sleep best.

References
7 Sources

  1. National Heart, Lung, and Blood Institute. (2023). Sleep Apnea: Treatment.

    https://www.nhlbi.nih.gov/health/sleep-apnea/treatment
  2. Skiba, V., & McLellan, B. (2022). Safe use of donated positive airway pressure devices to increase access to treatment for obstructive sleep apnea: a clinical outreach program. Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 18(5), 1455–1457.

    https://pmc.ncbi.nlm.nih.gov/articles/PMC9059591/
  3. Food and Drug Administration. (2024). Do You Need a Device That Claims to Clean a CPAP Machine?

    https://www.fda.gov/consumers/consumer-updates/do-you-need-device-claims-clean-cpap-machine
  4. Hukins, C., & Duce, B. (2021). Asset life span in a government funded CPAP device program. Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 17(3), 375–380.

    https://pmc.ncbi.nlm.nih.gov/articles/PMC7927317/
  5. Federal Register (2018, October 19). Medical Devices; Anesthesiology Devices; Classification of the Positive Airway Pressure Delivery System.

    https://www.federalregister.gov/documents/2018/10/19/2018-22840/medical-devices-anesthesiology-devices-classification-of-the-positive-airway-pressure-delivery
  6. Continuous Positive Airway Pressure (CPAP) therapy. Medicare. Published 2025.

    https://www.medicare.gov/coverage/continuous-positive-airway-pressure-devices#coverage-content-description
  7. Eligible Health Care FSA (HC FSA) Expenses – FSAFEDS. Fsafeds.gov. Published 2025.

    https://www.fsafeds.gov/explore/hcfsa/expenses?take=100

Learn More About CPAP

CPAP Recalls: What You Need to Know

By Jay Vera Summer January 27, 2026

Online CPAP Stores That Take Insurance

By Brian Clark January 22, 2026

Can You Use Purified Water in a CPAP Machine?

By Austin Meadows January 21, 2026

What Are Micro CPAP Devices and Do They Work?

By Dawn Papandrea January 21, 2026

EPAP Therapy: Expiratory Positive Airway Pressure

By Jay Vera Summer and Brian Clark January 20, 2026

How Long Will Medicare Pay for CPAP Supplies?

By Cassandra Burns January 16, 2026

Can Your Apple Watch Detect Sleep Apnea?

By Abby McCoy, RN January 15, 2026

CPAP and COVID-19

By Jay Vera Summer January 13, 2026

Does a CPAP Machine Count as a Carry-On?

By Jay Vera Summer January 9, 2026