Frequently Asked Questions about CPAP.


What are the best selling CPAP masks?

Choosing the right mask is the key to having successful therapy. There are many masks to choose from and it can sometimes become overwhelming. We have compiled a list of the best-selling masks that are on the market right now. You can use this as a guide to see what others are using to achieve the best CPAP therapy. We have broken it down into the three types of masks.

Nasal Pillows:

ResMed AirFit P10 . This mask is very lightweight and has minimal contact points with your face so you barely know that it is there. It includes all sizes to ensure the perfect fit! Also has a female option. ResMed AirFit P10 for her

ResMed Swift FX . This mask is very comfortable and easy to fit for the best seal. Also has a female option ResMed Swift FX for her

Nasal Mask:

ResMed AirFit N10.  Only nasal mask to have a clear line of site. Also has a female option. ResMed AirFit N10 for her.

ResMed SoftGel . This mask has a cushion that is made of gel to provide optimal comfort and a custome fit to your face type.

Sleepweaver . This mask is cloth based and is one of the lightest out there. It comes in many different colors and does not leave any pressure marks on your face.

Full Face Mask:

ResMed Quattro FX . This full face mask has eliminated the bulky forehead pad leaving a clear line of sight for its users. It is lightweight, for a full face mask, and creates a perfect seal.

ResMed AirFit F10. This mask has also eliminated the bulky forehead pad leaving a clear line of sight for the user. It also has a soft liquid silicone to ensure a great seal for the user. Also has a female option. ResMed AorFit F10 for her.


Do You Sell CPAP Machines and Supplies In Canada?

Do you ship CPAP machines to Canada?

YES!  In fact, we ship more CPAP machines and supplies to Canada than any other country (other than the US).  It's fast, hassle free and very inexpensive.  If you order a CPAP machine, BiPAP, AutoPAP, VPAP machine or CPAP mask, the shipping is free!  Yes, even to Canada!   Depending on your address in Canada, transit time is typically 3-5 days. Shipments to Nova Scotia and New Brunswick are typically on the slower end of that 3-5 day time and shipments to Brittish Columbia, Alberta, Quebec, Ontario, Saskatchewan and Manitoba are typically on the faster end of that 3-5 days.  All Canada orders are tracked through Canadian Post.  All shipments are clearly labeled "medical supplies" and are tax exempt.

Will you accept a prescription from a doctor in Canada?

Yes. As long as your prescription is from a licensed Canadian physician or qualified healthcare professional, we will accept your CPAP prescription...even if it's written in French!


What is the Best Selling CPAP Machine Available?

What is the most popular CPAP machine available?

After doing your own research, talking to your friends who use CPAP, and listening to your doctor, if you still want a little help in choosing a CPAP machine that is right for you, we have a few suggestions based on compiled user statistics, customer questions, and purchase data.  We won’t go through the list of all the available CPAP machines because that wouldn’t help you narrow your options down, so we’ll only list the top machines in each category.

The most popular CPAP machine for portability is the Z1 Unplugged 

The most popular CPAP machine for size and weight is the Z1 Unplugged

The most popular CPAP machine for price is the DeVilbiss IntelliPAP Auto

The most popular CPAP machine for ease of use is the ResMed S9

The most requested CPAP machine by physicians is the ResMed S9

The most popular CPAP machine for aesthetics is the ResMed AirSense 10

The best selling CPAP machine overall isn’t actually a CPAP machine, its an AutoPAP machine, which is the ResMed S9 AutoSet

Reviews and detailed product specifications for each of these machines is available at http://www.activa-medical.com/CPAP-Machines.html


Is International Shipping Free?


All CPAP, VPAP, BiPAP, mask and humidifier orders ship for FREE! All other orders totaling $75 or more will ship FREE. All orders totaling less than $75 will ship for a flat rate of $9.95. Shipments typically arrive in 6-10 business days. International shipping can be expedited to 3-5 business days. Click on link to see expedited options:


Here are the rates for expedited shipping for international orders:

Canada & Mexico $29.99

South America (Brazil, Chile, Argentina, Columbia, Venezuela, Peru, Uruguay, ), Australia & New Zeland $54.00

Asia (Japan, South Korea, Vietnam, Cambodia, Thailand, Singapore, China, India, Malaysia & Phillipines)  $44.00

Europe / UK (England, Scotland, Wales, France, Germany, Portugal, Italy, Belgium, Netherlands, Denmark, Romania, Hungary)  $49.00

If you do not see your country listed chances are it is included in one of the regions above and we ship there too. If you have any questions about shipping to your country please contact us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it



Activa Medical's CPAP Exchange - How does it work?

Activa Medical’s Used CPAP Exchange Is Simple!  www.cpapexchange.org

For all those who are in the market for a new CPAP, VPAP, Bi-Level, or APAP machine, simply send us your old CPAP machine and we’ll give you up to $200 of store credit to apply toward your new CPAP machine that you purchase from Activa Medical. 

Activa Medical donates the used machines to the Juvenile Diabetes Research Foundation International (JDRF.org), who then gives them free of charge to the children in need of respiratory / CPAP therapy, but cannot afford it.

The amount of store credit is dependent on the condition of the used CPAP / BiPAP / AutoPAP machine, the cleanliness, and vintage / model / age.  For a working CPAP machine the minimum credit is $100 up to $200 for a newer model BiPAP or VPAP in good condition.  Please contact us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it or call 866-809-9357 if you have any questions about the program or for specific questions about your used CPAP machine.


FAQ’s About Activa Medical’s CPAP Exchange

Who pays for shipping on the used CPAP machines?

You do.  But the store credit will more than offset that cost, which can then be applied to your new CPAP machine.  We pay for the shipping on the new CPAP machine to you.

Do you also donate the mask and related accessories?

No.  Since the masks need to be replaced every few months and are sized and fitted to each patient, they are not part of the CPAP Exchange program.

Will you accept any brand or age of CPAP machine?

Yes.  As long as it is in working condition and can be used without tuning or fixing, we will take it and provide the store credit to you.

Do I Buy The New Machine First or Send In The Old CPAP First?

Either is fine.  The easiest method is to purchase your new CPAP machine and then send in your old CPAP machine for the credit.  Once we receive it, we'll apply the credit to your account.  If you have not yet purchased your new CPAP machine then you will receive a discount code via email to use when you go through the checkout process.  The benefit to purchasing your new CPAP machine first is that you don't have to go any nights without CPAP therapy.

Can I use the store credit to purchase something other than a CPAP / BiPAP / AutoPAP / VPAP machine?

Yes.  As long as it’s used for something on the Activa Medical site you can apply the credit.  If it is used for a new CPAP machine, you can use the credit all at once.  If it is used for anything else, it must be used on several purchases.  Please contact us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it or call 866-809-9357 if you have further questions about using your CPAP Exchange program credits.

What is the average store credit for the used CPAP machines?

It depends on the CPAP condition, model, vintage, brand, etc, but typically we're giving $140 - $160 store credit toward your new CPAP machine for the majority of customers.

Who is Juvenile Diabetes Research Foundation International?

Activa Medical has partnered with the Juvenile Diabetes Research Foundation International (JDRF), www.jdrf.org to create a CPAP Exchange to provide free CPAP machines to diabetic children with sleep apnea, www.cpapexchange.org .   JDRF is the worldwide leader for research to cure type 1 diabetes (T1D). It sets the global agenda for diabetes research, and is the largest charitable funder and advocate of diabetes science worldwide.

The mission of JDRF is to find a cure for diabetes and its complications through the support of research. T1D is an autoimmune disease that strikes children and adults suddenly, and can be fatal. Until a cure is found, people with T1D have to test their blood sugar and give themselves insulin injections multiple times or use a pump--each day, every day of their lives. And even with that intensive care, insulin is not a cure for diabetes, nor does it prevent its potential complications, which may include kidney failure, blindness, heart disease, stroke, and amputation.  The incidence of sleep related breathing disorders in children with diabetes is very high and until recently has gone largely undiagnosed.

Since its founding in 1970 by parents of children with T1D, JDRF has awarded more than $1.5 billion to diabetes research, including $107 million last year. More than 80 percent of JDRF's expenditures directly support research and research-related education.


Do I Need A Sleep Study In Order To Buy A CPAP?

Yes and No.
Yes, if you go through a local Durable Medical Equipment company. This is due to insurance company regulations that state that a sleep study has to be completed in order for your insurance company to pay (their portion) for the device and supplies. This can cost anywhere from $200 - $600 in co-pays and even more if you have not met your deductibles. The sleep study then has to be interpreted by a board certified sleep doctor and then you have another doctor visit to talk about your treatment which you will also have co-pays for.  This adds up to four visits (sleep study, titration, two doctor visits), that each require co-pays.  Depending on your insurance requirements and the specialist requirements, this could be $500-$1800 in co-pays alone. 
No, if you purchase your CPAP and supplies on-line through an Authorized Distributor . The only requirement is a prescription from a doctor. Sometimes your doctor does not know what settings to write the prescription for, and would rather prescribe an Auto-Adjusting device, which is fairly common.  This device is called the APAP (auto adjusting positive airway pressure) that does not require a setting, it adjusts with your normal breathing patterns and only costs a few dollars more than the standard CPAP.


What's The Difference Between CPAP, AutoPAP, and BiLevel?

These are the different treatment options which are delivered through different machines:

  • Continuous positive airway pressure (CPAP) provides one constant air pressure all through the night
  • Automatic positive airway pressure (APAP) therapy automatically varies the pressure all through the night and from night to night. It actively responds to the continuous changes in your upper airway
  • Bilevel therapy provides a higher pressure when you breathe in, and a lower pressure when you breathe out


Successful CPAP users report improvements in:

  • Vitality and motivation
  • Job performance
  • Mood
  • Sexual drive and performance
  • Alertness while driving
  • Quality of life
  • Quality of sleep

A failure to use CPAP therapy may increase your risk for conditions linked to untreated OSA:

  • Hypertension (OSA increases your risk of hypertension by up to five times)
  • Stroke
  • Congestive heart failure (CHF)

CPAP equipment

  • Machine
    A flow generator that pushes air through a filter and provides a set air pressure through a mask system to the patient
  • Mask
    Seals over the face to deliver the treatment pressure to the upper airway
    A mask system (nasal pillows, nasal or full face) includes:
  • Mask or pillows
  • Air tubing
  • Humidifier
    Moistens the delivered air to relieve nasal irritation and dryness that can result from constant airflow, especially at higher treatment pressures

CPAP therapy will work for many people with OSA, but sometimes a different type of treatment is prescribed. Automatic positive airway pressure (APAP) therapy automatically varies the pressure all through the night and from night to night. It actively responds to the continuous changes in your upper airway.



  • Short for "automatic positive airway pressure"
  • Device used in the treatment of obstructive sleep apnea (OSA)
  • Automatically adjusts, on a breath-by-breath basis, to deliver the minimum pressure needed to keep the upper airway open during sleep. This allows the device provide you with your ideal pressure over the entire night
  • Tend to be more advanced and contain more features than CPAP devices
  • May also be known as:
  • Auto-adjusting CPAP
  • Auto-titrating CPAP
  • Self-adjusting CPAP
  • Auto PAP
  • Automatic CPAP
  • Auto

AutoSet™ technology

Third-party clinical trials have found that ResMed's AutoSet™ autotitration devices prevent more apneas and hypopneas and operate at lower average pressures than fixed pressure devices. Lower pressure means greater comfort for you.

Most devices only adjust pressure after an event (an apnea, hypopnea, or snore) has occurred, but AutoSet devices actually prevent most events. AutoSet devices respond preemptively to apneas and hypopneas by monitoring the user's inspiratory flow-time curve. Changes in this curve indicate the likely occurrence of an apnea, hypopnea or snore.

Some apneas will occur without any precursor, and in these situations, the AutoSet device responds to the severity of the apnea, not providing too much additional pressure and not providing too little, as opposed todevices with arbitrary incremental increases.

Are all APAP devices the same?

No. Although these machines use complex algorithms, each manufacturer's device uses a different — usually patented — algorithm that responds to different signs of snoring, flow limitation, hypopneas and apneas.

The algorithm largely determines the quality and comfort of treatment, so if you are prescribed an autotitration system, please check with the manufacturer to see that the device has been clinically validated to provide the treatment it promises.


Bilevel devices can provide therapy:

  • For people with Obstructive Sleep Apnea (OSA) if they have found continuous positive airway pressure (CPAP) therapy too difficult
  • Provide noninvasive positive pressure ventilation (NPPV) for people with respiratory disorders or other forms of Sleep-Disordered Breathing (SDB)

Bilevel therapy works by delivering two different levels of positive air pressure:

  • A higher level of pressure when you breathe in
  • A lower level of pressure when you breathe out

Although both are non-invasive, Bilevel and CPAP therapy differ in two significant ways:

  1. Bilevel devices deliver two levels of air pressure that are set to coincide with the patient's inspiratory and expiratory efforts
  2. Bilevel therapy can be used to treat conditions other than sleep apnea (OSA) and is the first line of treatment for a wide-range of respiratory disorders

Frequently Treated Conditions

Physicians may use bilevel therapy to treat a broad range of conditions, including:

  • Nocturnal hypoventilation
  • Respiratory insufficiency
  • Neuromuscular disease
  • Respiratory failure
  • Chest wall deformity
  • Chronic obstructive pulmonary disease (COPD)
  • ALS or Lou Gehrig's disease
  • OSA*

*Bilevel therapy is not typically prescribed for OSA patients; however, OSA patients who require high treatment pressures or have another respiratory condition are often candidates for bilevel therapy.


Will My CPAP Cause My Nose and Throat To Dry Out?

Everyone is different in this area, but this is a common "side effect" of CPAP useage and is one of the major drawbacks.  It is also the reason that some models come with humidifiers.  Without the humidifier, you may experience nasal dryness, sneezing fits, or the symptoms of allergies, cold, or sinus infection. Machines are available with both heated and non-heated humidifiers. Your doctor or Activa Medical can help you decide which one will work best for your specific needs.  


Does My Insurance TRULY Cover My CPAP?

Even though your insurance company may claim to reimburse for these items, the answer is, yes and no.  Some insurance plans, including Medicare, now require that patients starting on positive airway pressure therapy (CPAP, Bi-Level, APAP) have a follow-up appointment with their sleep doctor within 30-90 days of starting PAP therapy.  These rules also state that you must use your PAP unit 70% of nights, for at least 4 hours per night, during a consecutive 30 day period (in the first 90 days) in order to continue receiving insurance coverage for PAP therapy.  Coverage for PAP units will be denied if these requirements are not met and you will be responsible for the cost of your PAP unit and supplies (could be several thousand dollars if purchased through your insurance company or DME provider).  Unfortunately, this happens too often.  CPAP compliance occurs at an alarmingly low rate.  According to Edward Grandi, Executive Director of the American Sleep Apnea Association, compliance only occurs 40-60% of the time, which leaves the patient exposed to covering the cost of their high-priced CPAP equipment and supplies.  If you purchased your CPAP and supplies through one of the reputable online suppliers, without going through insurance or a local DME company, these costs will likely be 50-70% lower.  This often makes more sense for patients who may have insurance coverage, but feel they may not be compliant, have deductibles or co-pays to meet, or don't have insurance coverage.

Is AutoPAP Better Than CPAP?

AutoPAP (APAP) was initially designed to deliver optimized pressure throughout the night.  This is based on the premise that the level of pressure required to treat OSA varies throughout the night, depending on a subject's sleep stage and body position.  It also allows compensation for some of the adverse effects of CPAP therapy, namely mask discomfort, leaks and arophagia.  These patients also complain of waking up early in the morning due to intolerable pressure.  Studies have shown that sleep quality was better after APAP application and raised the patient's compliance.  People who use APAP use the device longer and are more likely to continue treatment.  Therefore, while CPAP is proven effective therapy for OSA, APAP gives you a more custom therapeutic experience and may have better treatment outcomes.
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