October 13, 2026 11 min read

AirCurve 11 vs AirSense 11:

Choosing a sleep therapy machine can feel confusing, especially when two products come from the same manufacturer and look similar. If you are comparing AirCurve 11 vs AirSense 11, the most important difference is how each machine supports your breathing during sleep.

Both devices are designed by ResMed and offer modern features for people receiving sleep apnea treatment. However, they use different types of positive airway pressure therapy and are intended for different treatment needs.

At Alfa Healthcare Supply Inc. we believe that understanding your equipment helps you make more confident decisions. This guide explains the differences in simple language, including therapy modes, comfort features, costs to consider, and what to discuss with your healthcare provider.

What is the Difference Between AirCurve 11 vs AirSense 11?

The main difference in AirCurve 11 vs AirSense 11 is the type of air pressure each machine provides.

The AirSense 11 is a CPAP/APAP machine that uses one pressure level at a time. Depending on the model, it either maintains a prescribed pressure or adjusts pressure automatically within a prescribed range.

The AirCurve 11 is a bilevel PAP machine. It provides higher pressure when you breathe in and lower pressure when you breathe out. This approach may be helpful for people who need additional pressure support or have difficulty tolerating standard CPAP therapy.

ResMed AirSense 11

ResMed-AirSense-11

Fixed or auto-adjusting single-pressure therapy, depending on model.

ResMed AirCurve 11

ResMed-AirCurve-11

Two pressure levels to support inhalation and exhalation.

Both machines belong to ResMed’s Air11 family and share several features. However, they are not interchangeable for every patient.

AirCurve 11 vs AirSense 11: Comparison Table

Here is a quick comparison to help you understand the differences before discussing your options with a sleep specialist.

FeatureAirSense 11AirCurve 11
Therapy typeCPAP or APAPBilevel PAP
Air pressureOne pressure level at a timeSeparate inhalation and exhalation pressure levels
Main purposeStandard obstructive sleep apnea therapyPatients who need bilevel pressure support or specific advanced therapy
Available modelsCPAP and AutoSetVAuto and ASV
Exhalation comfortEPR reduces pressure during exhalation within its design limitsSeparate inspiratory and expiratory pressure settings
TouchscreenYesYes
Heated humidifierIntegratedIntegrated
myAir supportYesYes
Prescription and clinical setupRequiredRequired

Features and treatment suitability vary by model and prescribed settings.

When reviewing AirCurve 11 vs AirSense 11, remember that a more advanced machine is not automatically the better machine. The right choice depends on your diagnosis, prescribed therapy and comfort needs.

1. Understanding AirSense 11

The AirSense 11 is intended for those who requires traditional positive airway pressure treatment for obstructive sleep apnea.

In patients with obstructive sleep apnea, the upper airway collapses or narrows over and over again during sleep. These interruptions of sleep can impact sleep quality and result in symptoms like morning headaches, difficulty with attention, daytime tiredness.

The AirSense 11 provides pressurized air to the mask to keep the airway open. 

Key features of AirSense 11

  • CPAP mode: Delivers a consistent pressure prescribed by your healthcare provider.
  • AutoSet mode: Automatically adjusts pressure within the prescribed range as breathing needs change.
  • Expiratory Pressure Relief (EPR): Reduces pressure during exhalation to help some users breathe more comfortably.
  • AutoRamp: Starts at a lower pressure while you fall asleep and increases toward the prescribed therapy pressure.
  • Integrated humidifier: Adds moisture to help reduce dryness in the nose and throat.
  • myAir app: Offers setup guidance, therapy information and coaching features.

These features are designed to make daily treatment easier to manage.

When the AirCurve 11 or AirSense 11 are both considered, the AirSense 11 is a good choice to consider if the standard CPAP or APAP therapy is sufficient for the treatment needs of many patients.

2. Understanding AirCurve 11

The AirCurve 11 is intended for patients needing bilevel pressure support or a more advanced type of PAP therapy. 

Unlike a standard CPAP machine, bilevel therapy uses two pressure levels:

  • IPAP: Inspiratory positive airway pressure, delivered during inhalation.
  • EPAP: Expiratory positive airway pressure, maintained during exhalation.

The VAuto model automatically adjusts the bilevel therapy for suitable patients suffering from OSA. Adjusts pressure based on breathing patterns and set pressures. 

AirCurve 11 models

AirCurve 11 VAuto

The VAuto model automatically adjusts the bilevel therapy for suitable patients suffering from OSA. Adjusts pressure based on breathing patterns and set pressures. 

AirCurve 11 ASV

The ASV model provides adaptive servo-ventilation to assist in stabilizing breathing in selected patients who have central sleep apnea, mixed apnea patterns and specified breathing conditions.

There are some important contraindications such as some patients with symptomatic chronic heart failure and reduced left ventricular ejection fraction. Must only be prescribed and managed by a qualified clinician.

It’s important to note this difference when comparing AirCurve 11 with AirSense 11. The AirCurve 11 is no ordinary AirSense 11, but actually offers different therapy options to meet different clinical requirements.

3. AirCurve 11 vs AirSense 11: Which Is More Comfortable?

Comfort is personal. A machine that feels comfortable to one person may feel different to another.

AirSense 11 comfort

The AirSense 11 offers features such as EPR, AutoRamp and heated humidification. EPR may help users who find it difficult to breathe out against continuous pressure.

AirCurve 11 comfort

The AirCurve 11 provides separate inhalation and exhalation pressure settings. Some patients who struggle with standard CPAP pressure may find this approach more comfortable.

However, not everyone who experiences discomfort needs a bilevel machine. Mask leaks, incorrect mask fit, nasal congestion, dry air and unsuitable settings can also affect comfort.

If you are evaluating AirCurve 11 vs AirSense 11 because you wake up frequently or remove your mask during the night, speak with your healthcare provider before changing devices. Identifying the actual cause of discomfort is an important first step.

4. AirCurve 11 vs AirSense 11: Pressure and Therapy Modes

Pressure delivery is the most important technical difference between these machines.

The AirSense 11 CPAP is a model with a set/recommended pressure. It is a AutoSet model which changes a pressure level in a set range.

The AirCurve 11 VAuto has inspiratory and expiratory pressures that are separated; the pressure level is automatically adjusted, depending on its bilevel algorithm and settings. The AirCurve 11 ASV employs a patented algorithm for specific breathing conditions.

These modes should not be interchanged and the pressure setting from one piece of equipment cannot be just copied to another one.

To choose between AirCurve 11 vs AirSense 11, consult your sleep specialist to see which therapy mode is suitable for your sleep study and medical history.

5. Design, Humidification and Everyday Use

There are a number of features which are practically identical across the AirCurve 11 and AirSense 11. Both feature a touch screen and access to ResMed’s myAir support tools and a built-in humidifier.

The commonalities in these features can allow for a familiar setup and routine while maintaining differences in types of therapy. 

Humidification

Humidification increases moisture content of the air flow. It may alleviate symptoms of nasal dryness, dry throat or irritation due to PAP. 

Mask compatibility

Mask should be appropriate for your face, breathing pattern and prescribed treatment. Depending on the device and the individual, nasal masks, nasal pillow masks or full-face masks are available.

Always check mask and tubing for compatibility with your equipment. 

Daily maintenance

For either machine, follow the manufacturer’s instructions for cleaning the mask, tubing and water tub. Regularly check equipment, replace worn parts as specified on the specified schedule and use the correct water and cleaning procedures as outlined in the device manual.

In comparing AirCurve 11 vs AirSense 11, take in the therapy system, not the therapy machine.

6. AirCurve 11 vs AirSense 11: Price and Insurance

Another important consideration when choosing a PAP machine is its price. The AirCurve 11 might be more expensive as it offers differing therapy capabilities to that of a regular CPAP machine. But specific costs will vary based on the model, supplier, accessories, and insurance coverage.

Don’t use a generic online rate, ask for an up-to-date offer on the specific device your doctor has prescribed. 

Before purchasing, check:

  • Whether your insurance plan covers the prescribed device.
  • Whether prior authorization or a sleep study is required.
  • Your deductible, copayment and other out-of-pocket costs.
  • Whether the quoted price includes the humidifier, tubing, mask and other accessories.
  • Whether replacement supplies and ongoing support are available.

Insurance coverage and eligibility varies depending on the insurance plan. Just because it has more features doesn’t mean that it’s medically appropriate for the higher price.

Alfa Healthcare Supply Inc. offers medical supplies and supplies patients and caregivers a resource to check on medical supplies availability and requirement. 

7. Which Machine Should You Choose?

The best option in AirCurve 11 vs AirSense 11 depends on your treatment needs rather than appearance or brand preference.

Consider discussing AirSense 11 if:

Consider-discussing-AirSense-11

  • You need standard CPAP therapy.
  • Your clinician recommends auto-adjusting APAP therapy.
  • Your prescribed treatment works well with a single pressure level.
  • You want features such as EPR, AutoRamp and integrated humidification.

Consider discussing AirCurve 11 if:

Consider-discussing-AirCurve-11

  • Your clinician recommends bilevel therapy.
  • You have difficulty tolerating standard CPAP despite appropriate troubleshooting.
  • You need the particular therapy provided by VAuto or ASV.
  • Your diagnosis and clinical evaluation support a bilevel treatment approach.

These are general considerations, not a diagnosis or a recommendation to switch devices. Your healthcare provider should determine the appropriate therapy.

8. Tips Before Buying Your ResMed Machine

Before finalizing your decision about AirCurve 11 vs AirSense 11, take a few practical steps.

  1. Confirm your prescription. Check the exact device model and therapy mode recommended by your sleep specialist.
  2. Review your sleep study. Your diagnosis and breathing patterns help guide device selection.
  3. Check mask fit. A comfortable, well-fitting mask can make a meaningful difference to your treatment experience.
  4. Compare the complete cost. Include accessories, replacement supplies and any insurance-related expenses.
  5. Ask about support. Make sure you understand setup, cleaning, troubleshooting and follow-up care.
  6. Avoid changing pressure settings yourself. Contact your clinician if therapy feels uncomfortable or symptoms continue.

Taking these steps can help you make a more informed purchase and avoid choosing a device that does not match your prescribed treatment.

Final Thoughts: AirCurve 11 vs AirSense 11

The key takeaway from AirCurve 11 vs AirSense 11 is that each machine serves a different treatment purpose. AirSense 11 supports standard CPAP and APAP therapy, while AirCurve 11 offers bilevel pressure support and specialized ASV therapy for selected patients.

Think about what matters most for your treatment: the type of pressure you need, your comfort during inhalation and exhalation, mask compatibility, ongoing support and overall cost.

Most importantly, choose your machine with guidance from your sleep specialist. The right device is the one that matches your prescribed therapy and helps you follow your treatment plan safely and consistently.

Alfa Healthcare Supply Inc. encourages patients and caregivers to learn about their equipment, ask questions and make informed decisions about sleep therapy supplies.

Frequently Asked Questions: AirCurve 11 vs AirSense 11

1. What is the main difference between AirCurve 11 vs AirSense 11?

The AirSense 11 provides fixed or auto-adjusting single-pressure therapy, depending on the model. The AirCurve 11 provides bilevel therapy, with higher pressure during inhalation and lower pressure during exhalation, or specialized ASV therapy in the ASV model.

2. Is AirCurve 11 better than AirSense 11?

Not for everyone. AirCurve 11 may be appropriate for patients who need bilevel pressure support or specific advanced therapy. AirSense 11 may be suitable for patients whose needs can be met with standard CPAP or APAP therapy.

3. Can AirCurve 11 replace AirSense 11?

A clinician may prescribe a switch when medically appropriate, but the devices are not automatically interchangeable. Your diagnosis, pressure requirements and prescribed therapy mode must be considered.

4. Does AirSense 11 automatically adjust pressure?

The AirSense 11 AutoSet model automatically adjusts pressure within the prescribed range. The standard CPAP model delivers a fixed pressure set by the healthcare provider.

5. Does AirCurve 11 have a humidifier?

Yes. AirCurve 11 models include an integrated humidifier to help add moisture to the airflow. Follow the manufacturer’s instructions for using and maintaining it.

6. Which machine is suitable for central sleep apnea?

Certain patients with central sleep apnea may be candidates for AirCurve 11 ASV, but suitability requires a detailed clinical evaluation. ASV is not appropriate for every patient and has important contraindications.

7. Can I use the same mask with AirCurve 11 and AirSense 11?

Many compatible ResMed masks can be used with both Air11 platforms, but you should verify compatibility for your exact mask and device. Proper mask fit and prescribed settings remain important.

8. Where can I learn more about ResMed sleep therapy equipment?

You can visit Alfa Healthcare Supply Inc. to explore medical supplies and contact the supplier about product availability. For detailed technical specifications, consult the official ResMed AirSense 11 and AirCurve 11 product pages.