Earth Day spotlight: Are you concerned about the plastics in CPAP equipment?

  • Posted by:
  • Category: News, Uncategorized


Any time you are required to use medical equipment to treat an injury or illness, it seems like it should be safe to assume that the materials used in the equipment are safe and hypoallergenic (such as with plastics in CPAP).

For the most part, this is true, but sometimes things happen that patients need to be made aware of. Or, sometimes patients resist using equipment because they have concerns.

Since this is the week of Earth Day, and part of our focus here at the ASAA is improving our sleep environment and patient safety, here are three situations we can address in terms of the use of plastics in CPAP equipment.

You may have heard about one or more of these situations, or have been concerned about them. Let us clear the air and encourage you to move forward with your CPAP regardless.

If you take away only one thing from this post, let it be this: There are ways to protect yourself against potential exposures (to BPA, VOCs, or bacteria), so there’s really no good reason not to use CPAP. Learn more as we address these situations below.

Three concerns about using CPAP equipment

Should I be concerned about BPA leaching from my CPAP mask?

products that contain bpaobjects that can contain bpaSome CPAP users might be astonished to discover that there is bisphenol-A (BPA) in the composition of their CPAP mask. This includes all kinds of masks, such as nasal pillows, nasal masks, and oronasal (full-face) masks. BPA is an industrial chemical used in certain kinds of plastics and polycarbonate resins to add hardness to the plastic.

BPA, unfortunately, can leach in the presence of liquids. It is a known hormone disrupter when consumed by very young children (most widely known as the chemical previously found, but now banned, in most baby bottles).

If CPAP masks contain BPA, should this be of concern for users, since they are typically using them with humidification equipment? According to one mask manufacturer, Respironics, the answer is No. In a 2008 letter posted at, they shared their knowledge of the use of BPA-linked plastics in their products, writing that

“it is Respironics position that our products do not pose any increased risk of exposure to BPA for our users and thus our products remain safe for use.”

The Food and Drug Administration echoes that sentiment, maintaining that BPA is considered safe for adult humans and acceptable for use in the manufacture of CPAP masks. In fact, using such materials in CPAP machines is approved globally, and any level of exposure to BPA by way of CPAP mask is considered to be extremely low, posing no threat to an individual’s health.

Meanwhile, there really aren’t any alternatives. All CPAP mask manufacturers use materials that include BPA in their composition at this time; there are no “BPA-free” CPAP masks at this time.

If you are still concerned about plastics in CPAP because your mask is not BPA free, you might want to use mask liners as a barrier to prevent contact with the chemical, should it leach into your humidifier water. Many people prefer using mask liners because they protect the skin from irritation anyway, providing an inexpensive, easy solution to a common CPAP usage problem.

Whatever else you do, don’t stop using your CPAP because you fear the leaching of BPA from the mask. Your risk for damaging your health is many times greater if you quit using CPAP than if you use CPAP and expose yourself to tiny amounts of BPA.

Good news on the use of plastics in CPAP equipment for the tiniest patients… Circadiance has recently developed a BPA-free patient interface called the NeoPAP, which premature infants, newborns, and infants can wear to treat a number of respiratory concerns.

Does CPAP equipment pose a problem due to off gassing?organic compound

Off gassing is the term for the release of volatile organic compounds (VOCs) and other chemicals from the materials found in new items (think of the “new car smell” as a kind of off gassing) as the particles begin to settle.

Whether there are risks inherent in breathing air around an item that is off gassing depends on a lot of factors, such as the sensitivity of the individual, the type of chemical release, and its level of concentration.

Naturally, any item that might be off gassing in close proximity to the CPAP user is of concern: after all, these VOCs probably shouldn’t be part of the “room air” that the CPAP machine processes and pressurizes for delivery through the tubing and mask. People who are using CPAP already have enough respiratory problems to tend to.

Let’s face it, new CPAP equipment may off gas if it has been taken right out of the box, plugged in, and put to use within the same space of time.

It would be better to unpack your CPAP equipment in a well ventilated space (outside, or in a room with a window open) to help reduce the amount of VOCs one may come into contact with.

This isn’t any worse than “airing out” new memory foam pillows, pads and mattresses before sleeping on them, as they can tend to off gas, as well.

Keep in mind that any kind of brand-new, out-of-the-box device manufactured using plastics may be prone to off gassing, which can include some of the new bedside technologies for tracking sleep, CPAP sanitizing systems, or sound machines.

If you’re concerned, use an air purifier in your sleeping space to capture those particles so they are removed from “room air.” Some are FDA approved as Class II medical devices; they can provide a pure CPAP environment for those with a history of sensitivities to pollutants and may even be reimbursable by insurance if prescribed.

Meanwhile, make sure your CPAP filters (both the permanent one and the disposable one) are clean, and air out of your bedroom when weather appropriate to keep the air circulating and to reduce the concentration of VOCs.

What about the water I use in my CPAP humidifier?

distilled or bottled water is best for cpapMost of the concerns people have about using plastics revolve around the potential for chemical leaching in items that come into contact with water or which tend to overheat, which might cause chemical fumes.

In the case of the CPAP humidifier, the way that a CPAP machine is constructed should work to keep the humidification reservoir at a temperature that is safe for warming the water but which does not result in melting or overheating the plastic itself.

While CPAP machines do contain tiny amounts of BPA (see above), there aren’t enough toxins in the plastics in CPAP equipment to pose a risk to the user.

However, it’s important to use the right kind and right amount of water in your CPAP humidifier in order to get the best benefit and to protect the longevity of your equipment.

CPAP machine humidifiers generally call for distilled water, and when this isn’t available, they generally prefer that you use bottled water (versus tap water). Check your manufacturer for guidance, to be certain.

Why distilled or bottled water over tap? Tap water can contain chlorine and other chemicals that could be damaging to the airways, as well as pathogens that could make you extremely sick.

Distilled water has filtered out particulates as well as many minerals in tap water that can eventually cloud your humidification chamber with deposits. While bottled water doesn’t filter out all minerals, it’s still considered safer than tape water.

It’s important, also, to be conscientious about cleaning out the chamber each morning, making sure you wash and dry it and leave no standing water in it, if you want it to last the longest.

As for the right amount, it might seem like a good idea to scrimp on the humidifier water because you simply won’t go through all that water in any given night. However, you run the risk of damaging your CPAP machine if you add too little water to the chamber, which evaporates and overheats the plastic in the chamber. Follow manufacturer’s directions to be on the safe side.


Leave a Reply


  • Caveman Carl

    Great write up. I found this article looking for an alternative to my plastic mask and hose. My problem is I’m allergic or sensitive to plastic off gassing. Using a CPAP/BIPAP machine, my eyes will swell closed, face and mouth swell, and my airway throat and uvula all swell causing difficulty breathing. I have no allergies other than the typical dust with the rest of the world. But this plastic off gassing sensitivity is so strong that even wearing safety glasses (and some reader glasses) burns my eyes or drinking from a new plastic cup causes my throat to swell closed. Clearly I have to be careful around plastics and I know there have to be others that have the same problem. There is a cloth mask available but it has horrible leak issues in the reviews. My % of O2 is dropping to the 60’s and I’m developing major health issues from the regular oxygen deprivation. I cannot sleep without a CPAP/BIPAP machine, so what do I do?

    • MK Boston

      I have the same issue with the plastic off-gassing and had one night with a ResMed AirSense™ 10 CPAP and nose mask and it made me feel unwell and I was very conscious of the smell from the mark/tube/device. It seems remarkable to me that companies like ResMed and Respironics don’t have products that are both BPA free and manufactured to minimize off-gassing considering they are treating people with respiratory illness. It is probably a cost issue – they can pump out machines in China for $200 and sell them for $800.

    • GinGin

      What about an oral mouth appliance? Or if you are allergic to that, I have read playing the digeredoo can strengthen the throat muscles and improve mild to moderate sleep apnea. It has been medically proven to work. Doctors actually prescribe this method.

  • Dr Dawg

    What can we do to reduce the waste produced by plastic cpap supplies….there is no recycling and there is so much wasted plastics.

    • Nan Sumner

      I have the same concern. If we are all replacing our mask cushions each month, that is a lot of plastic that ends up in landfills and never disintegrates…..

  • Stephanie Espinola

    What is the horrid odor? If the system runs dry, the odor wakes me up. I clean the mask, hose and water tank often, replace the filters and only use distilled water, but the water tank still has that smell! It smells like burnt plastic. Regardless of what the manufacturer and the FDA say, it’s obvious there is outgassing. I owned an X-Ray device company and know firsthand that the FDA people are morons with badges that actually know nothing about the products they oversee. We need an independent investigation to get to the truth about these machines.

    • Donna

      my tank has the same off chemical smell when running out of water, I have noticed an oily residue on the metal, it’s got to be bad for your health, it makes me feel sick!!!

      • Super-Moses

        I have used a cpap machine for close to two years now. I noticed in the past 5 months a medicine/metallic/plastic taste and smell that stays with me 24 hours a day. I don’t use my machine every night like I should. I had the corona virus this past Thanksgiving and since then have noticed this medicine/metallic/plastic taste and smell. For a long time I didn’t put two and two together thinking it was a after affect of the virus. Then when I got my last vaccine shot, the taste and smell was really intensified. Today I checked all my supplies for my cpap. There it was, every piece of plastic, the harness and chin strap all have the same smell.
        I asked my husband if he could smell what I did but he is a smoker and he could not smell anything wrong about my supplies. When he had Covid his smell and taste were affected for a few weeks. So..I don’t know what to do about this either. I have had excessive hair loss too, thinking it was a result of the Covid. A Mayo Clinic doctor stated that hair loss from the Covid should reverse itself after about 5 months. I sincerely hope so. What a strange chain of events.

    • Jane

      I have the same problem. I wonder if when the water runs out and we smell that burnt plastic odor if it is toxic?

  • Judi Treolo

    At last, I think I’ve found out why I get blisters in my nose & throat after using my CPAP for three or four nights! It takes two or three weeks for them to heal so I can use the machine, again. This is so counterproductive to my need for CPAP and I do not find any hypoallergenic products anywhere! I guess I’ll have to foot the bill for a sanitizer at 319.00. Medicare nor my insurance will cover it since it is considered frivolous. That stinks

  • Jim

    Studies show a link between BPA (Bisphenol A) and hormone-associated cancers like ovarian, breast and prostrate cancers. Additionally, its estrogen mimicking can impact testosterone levels and because BPA can cross the Placentia it may suppress a gene vital to nerve cell function and to the development of the brain and central nervous system in fetuses. In California, CPAP machines must carry this statement: “WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.”

    The combination of heat and water breaks down the plastic and releases BPA into the water. Scratching and discoloring of the plastic also contribute to the rate of BPA leaching. Perhaps. you’ve seen a warning in your CPAP materials, stating “Do not leave in sunlight.”

    For the same reason, BPA-containing plastics should NOT be cleaned with harsh detergents or containing acidic liquids or at high-temperature.

    It’s stated here that if you’re concerned you can use mask liners to prevent contact exposure, yet not a single word addresses the fact that BPA particles are present in the air forced deeply into our lungs hour after hour, night after night, year after year. Yes, someone may respond to this indicating “experts state the BPA is not bio-accumulated.” Yet, given the half life of it in our bodies and our constant and repeated exposure to it; is there a time when our bodies are BPA free… I think not.

    I wish I felt confident that the EPAs guidelines, actions and decisions demonstrated a pure commitment to public health and safety wasn’t trumped by the lobbying and money of big industry. Even if it was “consumer first“ agenda… by law, the E.P.A. can’t even require company-chemical testing to determine whether a new chemical presents a risk exists without first showing a risk is likely.

    • Nancy

      If you ever know of a way to get involved in this issue, I would like to know. I use a CPAP for 3 years now, and have developed asthma since then. I have to be on CPAP d/t a heart problem. I would love to see healthy safe hoses used

  • Joanna Lovelace

    I discussed with my doctor today the plastic chemicals i may inhale as air pushes through the Cpap tubing . She said that silicone would be less of a problem than PVC. I was wondering if tubing is made with silicone, and who would sell them?

  • Helen

    I used a new cpap machine for two days and the plastic taste in my mouth will not go away after a week of not using the machine. Any suggestions

  • dean

    all the new cpap machines are not
    BPA free
    and we are poisioning ourselves
    bpa isnt recomended in water bottles let alone breathging it into our lungs for 8 hra a day
    So i still use the old modles which are clean

  • Nancy Roth

    Please. I am very concerned about this. I have used a cpap in the past with no problems. I cleaned it periodically but can’t recall ever being asked to replace it or parts. I am now dealing with a company named roetech. The machine I am using is the Amara view full face mask. I have been sick for the past couple of days and have not cleaned the equipment for two nights last night I awoke early morning coughing snd choking, my cheeks and my tongue feeling like they had minute pieces of something, maybe plastic, stuck to them and my throat felt like it was thoroughly covered with the same. I can only pray that some of whatever it was did not enter my lungs. I will certainly cleanse both the tubing and put a new filter in before donning it tonight. All of this brings to mind What is the reason for suddenly having to replace these parts so frequently? Do they eventually disintegrate over time? I have used a cpap machine for a long time and have never experienced any of this. I really look forward to your quick reply thank you

    • Darlene

      I was told that it takes some people a lot longer to experience the symtoms.. It sounds like it took you longer. But those are the feelings I was having. I walked into the ER.. Which I never do, and said I am having a allergic reaction to something, please get it out of my system. I was having a heart time getting a good breathe. So they did some kind of histamine blocker and benadryl. like 3 meds in an IV. I felt great when I left, about 5 hours later. They sent me home with a steroid pack. I had not felt that good in a few years.

  • Darlene

    I just got out of the hospital and through process of elimination, I’m highly allergic to what ever is going on with my cpap. I have severe sleep apnea and need it. but can not use it. I was told by my DR to see the DME company because they have many options. The DME company made me an appointment to discuss it. They do not have any other options. I was told to get back a hold of my DR to see what alternatives to the sleep mask does she recommend. I’ve very concerned with this also

  • Ruth Conaway

    I had to quit using my c-pap and by-pap because of off gassing. It irritated my lungs and airways. My voucenox throat and vocial cords.

  • Grneyechitown

    If gorilla glass or ceramics or metal were used for the machines, humidifiers, and masks these companies would lose a huge amount of money. They make money on supplies. No incentive to ensure they are safe, non-disposable, and readily available. I only just started CPAP and got sick right away. Also the waste is unacceptable especially with products that last forever (plastics). All plastic is made of chemicals and oil. All of it breaks down eventually but only into tiny pieces. It never goes away. We are all getting it in our air and from bottled water and soda where the PET plastic leaches into the water and soda. Also plastic is in almost all fish now. This is something we have to demand a better solution to since it effects us all whether we experience symptoms or not. Someone who has an entrepreneurial spirit has to make the leap into different materials for these machines. The time is right for that, though who knows if that person is out there and can make it work.

  • Angela Gonzalez

    BPA is far from my only concern about the plastic use in my CPAP! BPS, BPAF, Phthalates and PVC are of great concern too, just to name a few of the other toxins found in plastics. By limiting the scope of this article to just BPA is truly troublesome. It’s like the article is addressing only a surface issue because they are trying to hide something much worse. If the cpap industry cared about patients health and not just about treating sickness, they would find non-plastic CPAP alternatives.