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Considering Buying a Used CPAP Machine? Read This First!

There’s a lot to be wary of when purchasing a used CPAP machine, from infections and funky smells to improper settings and part failure.

CPAP machines are durable medical equipment (DME.) 

They serve a critical role in helping to prevent apnea episodes and provide a greater quality of sleep (and, in turn, a greater quality of life) for those living with sleep apnea.

However, like a lot of medical equipment, paying for a CPAP machine out of pocket can be a costly experience.

This leads many people to look for alternative sources of used CPAP machines and accessories. 

While this can offer significant upfront savings over buying new, the savings can come at the cost of safety, reliability, and the overall quality of your CPAP therapy experience.

In this guide, we’ll look at why someone might consider buying used CPAP equipment and pitfalls to consider if you absolutely must shop used over new.

Understanding Used CPAP Sources

Before we dive into the concerns you should keep in mind and why we wouldn’t recommend buying a used CPAP machine, we want to take a minute to look at the various sources you might use to find used CPAP equipment and accessories.

They’re not all created equal. As such, while we never recommend purchasing used CPAP equipment, some sources are more likely to provide you with a safe, dependable machine than others.

In most cases, used CPAP machines are available from one of three sources:

  1. Online classifieds, such as Craigslist or Kijiji
  2. Online used DME and CPAP equipment providers 
  3. Local used DME and CPAP equipment providers

In many cases, online classified listings are from people looking to either sell their old equipment or resell equipment they found or belonged to family or friends.

As with any online classified listing, the details are important, and there are little to no protections for you as a buyer. 

Due diligence is a cornerstone of any purchase you might choose to make.

Online used DME and CPAP equipment providers offer much of the convenience of an online classified, but often come with a few more guarantees and services–such as in-depth machine cleaning, new accessories, or warranties. 

But you’re still left trusting an online listing and often won’t be able to interact with or inspect your used CPAP until it’s at your door.

Finally, local used DME and CPAP equipment providers will require you to travel and visit in person. 

However, they go beyond online providers by allowing you to touch, inspect, smell, and otherwise verify the quality of any used equipment you might purchase. 

You can also get a feel for the business while looking at the products you’re interested in to see if they appear dependable should you need further assistance.

Still, despite this level of reassurance and increased ability to research your purchase before handing over any money, we recommend a new CPAP machine from a reputable CPAP supply store over any used option available.

The Risks of Buying Used CPAP Machines

While it might seem frustrating that you can’t legally buy a CPAP machine without a prescription, these rules are in place to protect you as a consumer and ensure a reliable, consistent experience across the entire range of these critical products.

In this section, we’ll look at the risks. They’re presented in no particular order, as each element can significantly impact your experience.

Missing Prescription Perils

When you purchase a used CPAP machine without a prescription, you are missing a vital aspect of PAP therapy–optimized pressure levels and machine settings.

Even on an APAP machine with a variable pressure rate, the possible rates are still within a range. 

Some are narrower, and some are broader than others–again, based on the prescription written by your doctor in consultation with a sleep specialist.

There is a strong chance that the levels set for the previous owner aren’t the perfect settings for your needs.

You could experience diminished apnea benefits, or the machine could even cause additional problems.

If you absolutely must purchase used CPAP equipment, do so from a provider who requires a prescription and can help ensure that your used CPAP machine is set to the best settings for you as outlined by your healthcare provider and determined during an at-home or lab-based sleep study.

Old Equipment and Obsolete Features

Modern CPAP machines provide a wealth of features designed to add comfort or convenience to the PAP therapy experience. 

However, most machines last for 5 to 7 years between replacements, and this means that many used CPAP machines are generations behind the latest technology. 

Features such as ramping, humidification, data reporting, and sea-level adjustment might seem small. 

Still, they each add a noticeable difference and can help to improve compliance rates and overall comfort.

More to the point, features such as data reporting make it much easier for your sleep specialist or doctor to monitor your treatment and adjust your machine’s settings to serve your exact health requirements better. 

Then there are safety concerns regarding recalls. While they don’t happen often, it’s critical to ensure that any recalls are handled promptly to avoid health and safety risks.

A reliable DME or online CPAP supply store will ensure that any recall concerns are taken care of before you receive your equipment and should be available after the purchase should any issues arise.

However, on online classifieds or auction sites, there’s no way to guarantee that recalls are tended to before spending your money–and there’s little chance the seller will take care of you should a recall happen after you’ve made your purchase.

So you might not simply miss out on comfort. You could receive diminished benefits as well!

Aging Parts and Accessories

Even with the best CPAP machine cleaning and maintenance routines, you’ll need to replace parts and accessories on your CPAP machine regularly. 

If you buy an older used machine, you could find that parts are harder to find or more expensive as they have to come through alternative sources such as resellers.

Buying a new machine doesn’t simply guarantee the machine’s condition, but it helps to ensure that CPAP masks, CPAP tubes, CPAP water reservoirs, and other vital components will be easy to source for the life of your machine.

Faulty Equipment and Costly Failures

Most new CPAP machines come with a multi-year warranty from the manufacturer against defects and failures that are outside of your control. 

This means that should something go wrong, you have an avenue to seek repairs or replacement and won’t need to spend a lot of money to get back to your typical PAP therapy routine.

While some used CPAP machine sources offer limited warranties, they’re almost always shorter than manufacturer warranties. 

Worse still, unless you read the fine print, you could find that their coverage is essentially useless or requires you to ship your machine off for repair at your own cost.

If you’re purchasing from an online classified, you might find that while the machine appears to work in the ad, there are issues once you connect everything and use it for the first time. 

But unless the seller is willing to work with you, you have little recourse to repair your equipment or recoup the costs of your initial purchase.

In this case, you’ll likely spend as much (if not more) than you’d have spent on a new unit to get your used CPAP machine functioning correctly.

Shifting Costs

While new CPAP machines typically come with hefty price tags, there’s a solid chance that you can receive assistance in covering a substantial portion of the cost (if not all of it) between health coverage and programs specifically designed to help with the expenses associated with either PAP therapy or DME in general.

If you opt for the cost savings of a used machine, there is a strong chance that you’ll forgo the ability to use any of these forms of coverage or assistance programs.

While the sticker price might appear lower at first, you might find that your total out-of-pocket liability is actually higher than purchasing new.

The one time where this might make more sense is if you’re purchasing a travel CPAP machine or backup unit. 

In that case, you are likely responsible for the total price regardless of the condition or source of your equipment. However, you’ll still have to worry about the rest of the risks listed in this article.

Contamination and Cleanliness

Finally, even if everything runs great and looks good, that doesn’t mean that you might not run into hidden health risks lurking in a contaminated machine and waiting to cause you health complications.

It might seem obvious that you shouldn’t use used CPAP hoses, CPAP masks, mask cushions and other parts which came in contact with the previous owner’s face. 

However, you also have to consider that the entire machine (including its internal airways) constantly filters air from the previous owner’s lungs and surrounding environment.

While you might use a CPAP sanitization system, such as the SoClean 2 or Lumin UVC, to help reduce this risk, these systems are expensive in their own right.

By the time you purchase one of these systems, on top of the cost of a remotely new used CPAP machine and a complete set of tubes, masks, and other accessories, you might have been able to buy a new CPAP machine to begin with.

Further complicating matters, the types of microbes and bacteria that can cause the most concern aren’t always something you can find with a visual inspection. 

This means you could discover that you’ve traded your sleep apnea symptoms for bronchitis, pneumonia, or even tuberculosis!

Then there are the less harmful but annoying factors. 

For example, what about smells? 

If the previous owner was a smoker or used strong perfumes or scented cleaning products with their CPAP machine, those odours might be embedded in the machine’s plastic, rubber, and silicone seals.

While you might be able to run the machine for a while to reduce these smells, eliminating them could be impossible.

Pet dander and other allergens are also a concern for those with allergies. 

Especially if animals were allowed in the room with the CPAP machine by the previous owner. 

Even after changing filters and wiping down the exterior, you could find that using the machine still triggers allergic responses leading to added breathing complications.

Finally, you get the types of situations that make your skin crawl. If the previous owner lived in a cockroach or bedbug-infested area, you could bring that into your own home when you purchase the machine. 

If they frequently treated their home for infestations, you could also inhale residue from foggers or aerosol insecticides!

The Used CPAP Machine Buyer’s Checklist

If you still need a used CPAP machine, it’s crucial to do your due diligence and take precautionary steps to minimize your risk. 

While we can’t advocate buying used CPAP machines, this list should help you at least verify the basics of whether an option you’re considering will meet your needs.

NOTE: This list is not to be considered medical advice, and our official recommendation is to buy new equipment from reputable DME or CPAP machine suppliers. You accept all responsibility for financial loss or health complications by purchasing a used CPAP machine and do so at your own risk.

  1. Visually verify the condition of the machine.

    If you’re purchasing online, ask for pictures of the machine idle and in operation.

    Well-lit pictures from multiple angles will help confirm the condition of the unit.

    You can also ask for pictures of more hidden places, such as inside hose connection points, water reservoir connectors, or empty filter slots.

    Don’t be afraid to pick up the unit and look at all surfaces and openings if shopping in person.

    In either case, if the seller won’t allow you to inspect the unit, walk away.
  2. Consider any accessories you might need to avoid surprises.

    If the unit is in good shape, check if any accessories are already included.

    If possible, you should discard used masks, tubings, filters, and other parts and replace them with new ones.

    However, if new, unopened accessories are bundled with the product, they might save you additional money.
  3. Check part compatibility for your machine.

    While this is similar to consideration 2, you want to ensure ample supplies of any parts you might need for your used CPAP machine.

    This is especially important for older machines.

    After all, if the machine is still running in a few years, but you can’t find tubing or other critical parts for it, it won’t do you much good.
  4. Check run hours where possible.

    Many newer machines record the hours they’re in use in the software.

    You can think of this like the odometer on your vehicle.

    The higher this number is, the more likely you’ll run into complications or failing parts.

    More importantly, if you know the machine will report its run hours, and the seller won’t let you see the number, they could be hiding something!
  5. Give the unit a good sniff.

    Visual inspections are essential, but when the machine is supplying pressurized air directly to your nose or mouth, odours matter too.

    If you’re buying in person, be sure to get close and smell the machine.

    Sniff the casing, the filter area, and the hose connection point to see if you notice any smells.

    Do so with the machine off, as flowing air can mask some more subtle odours.
  6. Verify functionality where possible.

    If you are shopping in person, have the seller verify the function of any ramp features, heated humidifiers, or pressure adjustments available.

    Also, check to ensure that you have access to any settings changes you might need.
  7. Find a manual.

    While good customer support is also important, having a manual will help you quickly get up to speed on the features of your new-to-you CPAP machine and highlight any essential functions you should be aware of.

    They can also help avoid panicked runs to the CPAP supply store for assistance if something doesn’t seem right.

    If you’re unsure where to start, ask the seller or look on the manufacturer’s website for additional information.

Summary

  • Whether you have a prescription or not, purchasing a used CPAP machine comes with risks that can be difficult to avoid.
  • Common sources for used CPAP machines include online classifieds, online used DME and CPAP equipment providers, and local used DME and CPAP equipment providers.
  • While we do not recommend purchasing used CPAP equipment, practicing due diligence can help to reduce overall risk levels.
  • If you must purchase used, do so from a provider that requires a prescription to ensure your machine is configured correctly for your needs.
  • Risks associated with purchasing used CPAP equipment include improper settings, limited features, hard-to-find parts and accessories, broken equipment, premature failure, increased long-term costs, a lack of insurance coverage, limited or non-existent warranty coverage, contamination, unpleasant odours, allergens, and more.
  • Always thoroughly inspect a used CPAP machine before purchasing to ensure parts and surfaces are in good condition and that no odours are present.
  • Consider any accessories you might need to avoid financial surprises.
  • Consider parts availability to ensure the long-term viability of your machine choice.
  • Check run hours where possible.
  • Verify the functionality of ramp features, heated humidifiers, and pressure adjustments before purchase.
  • Find a manual if not included with your machine. In many cases, you can find older manuals on the manufacturer’s website or with a quick online search.

With years of experience helping Canadians find affordable, high-quality CPAP machines and accessories, CPAP Supply is Canada’s leading online CPAP supply store in customer satisfaction. If you’re considering buying a used CPAP machine, contact us first to discuss why you might do so and how we can help you obtain dependable, safe, new CPAP equipment to meet your sleep apnea needs.

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