ResMed AirFit F20 Cushion Sizes:

The right CPAP mask cushion can make a world of difference in making you feel comfortable during the night. When using the ResMed AirFit F20 full face mask, it’s crucial to understand both F20 cushion sizes and the importance of achieving a comfortable fit and seal. Well-fitting cushion can minimize air leakage, prevent excessive pressure on your face, and make the use of CPAP easier.

When replacement CPAP supplies become an issue, especially with multiple sizes where the options appear the same, we know how to help you figure it out at Alfa Healthcare Supply Inc. This guide covers the different sizes of cushions available for the F20, how to measure your face, how to tell if it’s a bad fit and what to look for when buying a new cushion.

The key is finding a cushion that fits your face, no matter how small, medium, or large you need it to be, to be comfortable and to assist with your CPAP prescription. 

What are the Available F20 Cushion Sizes?

The ResMed AirFit F20 replacement cushion comes in 3 standard sizes: small, medium and large. These interchangeable cushions fit to the AirFit F20 mask frame and can be easily swapped out without replacing the entire mask system.

ResMed’s product information states that the cushion has InfinitySeal technology to assist with holding the seal on various facial shapes. The proper size is still important for comfort and performance, though. 

1. Small F20 Cushion

The small cushion is developed for the user whose facial measurements fall in small range. It could work for those who have a shorter distance between the bridge of their nose and the lower lip, just below.

If a medium cushion stretches too far down the chin and/or feels too wide, a small cushion can provide a better fit. But, not everyone with a small face will find a small cushion to be more comfortable. 

2. Medium F20 Cushion

One of the standard cushions available is the medium cushion, which might be appropriate for users who have medium dimensions.

If you have just one medium cushion and are comfortable with it even though it has a bit of tightness in straps, this might be a practical option to replace. However, examine the cushion for wear, and ensure it is still an appropriate size for your face. 

3. Large F20 Cushion

The large cushion is intended for the large range of facial measurements.

If a smaller size seems too narrow or doesn’t fit around the mouth and nose, a larger size may provide better coverage. A large cushion can however be ill placed if it covers too much of your face. 

Important: The correct size depends on your facial measurements and how the mask sits on your face, not just your overall face size.

F20 Cushion Sizes Chart

Use the following chart as a starting point when choosing your replacement cushion.

These are taken from the bridge of the nose to a point below the lower lip and above the chin. They are not the width of the cushion itself.

The ranges overlap each other at their edges: If your measurement is between two sizes, use ResMed’s official sizing template and fitting instructions. If your size is in between sizes, ResMed’s recommendation is to select the larger one. 

How to Measure for the Right F20 Cushion Size

Measuring at home can help you narrow down your options before ordering a replacement. Follow these steps carefully.

Step 1: Get a straight ruler

Use a ruler or another rigid measuring tool that allows you to measure in a straight line. Ask someone to help if you find it difficult to measure accurately by yourself.

Step 2: Find the starting point

Locate the bridge of your nose, usually around the area between your eyes. This is the upper starting point for the measurement.

Step 3: Find the endpoint

Locate the small indentation between your lower lip and chin. Measure vertically from the bridge of your nose to this point.

Step 4: Compare your measurement

Use the chart above to identify the closest recommended size. For example, a measurement of 82 mm falls within the small range, while 92 mm falls within the medium range.

Step 5: Confirm the fit

A measurement is a useful starting point, but it cannot guarantee the perfect fit. Use the official ResMed sizing template when possible, and check how the cushion rests on your face before using your CPAP machine overnight.

How to Know If Your F20 Cushion Fits Correctly

The best F20 cushion size should feel comfortable while creating a reliable seal when your CPAP machine is running.

Here are some signs that your cushion may fit properly:

• The cushion rests comfortably around your nose and mouth.
• The mask remains stable when you change sleeping positions.
• You do not need to pull the headgear excessively tight.
• Air leaks are minimal during normal use.
• The cushion does not cause persistent pressure or irritation.

Remember that mask fit also depends on headgear adjustment, cushion condition, facial shape, and sleeping position.

Signs You May Have the Wrong F20 Cushion Size

Even a high-quality cushion can feel uncomfortable if its size does not suit your face.

Frequent air leaks

If air is escaping around the nose, cheeks, or chin the cushion might not be the proper size or position. Clean the cushion, install the mask and fit the headgear as per the user guide before replacing it.

Excessive pressure on the nose

If there is pressure around the nasal bridge, it means the positioning is incorrect, the strap is too tight or it’s the wrong size cushion. Avoid snugly fitting the straps to make up for a poor fit. 

Cushion slipping during sleep

If the cushion is moving while you’re turning your head, it’s not in place. Make sure that the headgear and cushion configuration is correct before assuming that a different size is required. 

Persistent skin irritation

Pressure, friction, sensitivity and/or poor fit may lead to redness, soreness or discomfort. Wash the cushion frequently and consult your CPAP supplier for advice if it is still irritating.

When you get leaks or discomfort after making reasonable adjustments, consult your equipment provider or health care professional to check the mask fit again.

Are F20 Cushion Sizes Interchangeable?

Yes. The small, medium and large cushions fit with the compatible ResMed AirFit F20 mask frame. This interchangeable system also offers the opportunity to alter the size of the cushion without having to purchase a new mask system altogether.

But AirFit F20 cushions are not standard CPAP cushions. A cushion for another ResMed mask (e.g. AirFit F10, AirFit F30 or AirFit N20) will NOT fit your AirFit F20 frame.

Prior to ordering please ensure it is a genuine AirFit F20 replacement cushion.

Also, make sure you need the regular AirFit F20 cushion or one that is compatible with your mask model. 

AirFit F20 vs. AirFit F20 for Her: What Should You Know?

The AirFit F20 and AirFit F20 for Her are full face mask systems that share some similarities, but the full mask setups are not the same.

AirFit F20 will come with the standard small, medium, and large size cushions. In the past, the AirFit F20 for Her were only available in small and medium full-mask type.

ResMed offers the same “small, medium and large” cushion parts for the compatible F20 systems. So the complete mask system name does not take the place of checking the cushion size and compatibility.

Be sure to verify the model name, and size the cushion that is currently on their bed, when purchasing F20 cushion sizes. If you are unsure, consult your equipment supplier before ordering. 

How to Replace Your ResMed AirFit F20 Cushion

Once you have selected the correct replacement, changing the cushion is generally straightforward.

1. Turn off your CPAP machine and disconnect the mask from the air tubing if necessary.
2. Remove the existing cushion from the mask frame according to the AirFit F20 user guide.
3. Inspect the frame for visible damage, residue, or other signs of wear.
4. Align the replacement cushion with the frame and press it into place as instructed by ResMed.
5. Check that the cushion is seated securely and evenly.
6. Reconnect the mask and tubing, put the mask on, and check for leaks with the machine running.

Do not force the cushion into place. If it does not attach properly, check that you have the correct model and orientation.

How Often Should You Replace an F20 Cushion?

The replacement frequency may vary depending on the frequency with which you use your CPAP machine, the way that you clean your cushion, and the condition of the silicone as well as your insurance or supplier’s instructions.

As time goes on, the cushion may become discolored, lose its form, suffer tears and not stay flat. These changes may impact on both comfort and mask performance.

Check your cushion routinely and clean and replace as per manufacturer’s directions. Replace as needed when it becomes damaged or no longer fits as intended.

If your cushion leaks even after you position it and make adjustments, take the time to verify the condition of the cushion before deciding it was installed the wrong size. 

Tips for Maintaining Your F20 Cushion

Good care can help keep your cushion clean and comfortable.

• Clean it according to the manufacturer’s instructions.
• Allow it to dry completely before use.
• Avoid harsh cleaning products that may damage the silicone.
• Inspect the cushion for tears, stiffness, or other damage.
• Store your mask in a clean, dry place when it is not in use.
• Avoid overtightening the headgear to compensate for leaks.

A clean cushion and correctly adjusted mask can support a more comfortable CPAP routine.

Where Can You Buy F20 Cushion Sizes?

For a replacement, Alfa Healthcare Supply Inc. offers a healthcare supply shopping resource for patients and caregivers who require respiratory and durable medical equipment supplies.

Please check product name, size, mask compatibility and all prescription/covership requirements in advance prior to ordering.

Go to Alfa Healthcare Supply Inc. to see what their products are and see if you need a replacement cushion that’s available.

Avoid choosing a cushion from a product photo. Check the size of your current cushion and compare it to the manufacturer’s recommendations.

Final Thoughts: F20 Cushion Sizes

Getting the right F20 cushion sizes goes beyond small, medium and large. A proper fit will help alleviate the unnecessary pressure, minimize air leaks, and increase comfort during CPAP use at night.

Take measurements of your face, consult the ResMed sizing guide and check the model on your current cushion. Be sure to request help from your CPAP equipment provider, and avoid guessing.

At Alfa Healthcare Supply Inc. our mission is to ensure patients and caregivers that they can make informed decisions regarding the use of healthcare supplies. Just a little extra time spent checking cushion size can make you feel more as though you’re prepared for your new CPAP cushion, and more prepared for your nighttime experience. 

Frequently Asked Questions About F20 Cushion Sizes

1. What sizes are available for the ResMed AirFit F20 cushion?

The standard AirFit F20 replacement cushion comes in small, medium, and large sizes.

2. How do I know which F20 cushion size I need?

Measure from the bridge of your nose to the indentation below your lower lip. Compare the result with ResMed’s sizing chart, and confirm your fit with the official template when possible.

3. Can I use a large F20 cushion with a medium mask frame?

The AirFit F20 cushions are designed to be interchangeable with the compatible F20 frame. Confirm the exact mask model and follow the manufacturer’s fitting instructions.

4. Is the AirFit F20 cushion compatible with the AirFit N20?

No. The AirFit F20 and AirFit N20 are different mask models with different cushion designs. Purchase a cushion specifically intended for your mask.

5. Will changing my cushion size stop air leaks?

It may help if the current size is unsuitable. However, leaks can also result from poor positioning, loose or overly tight headgear, worn silicone, or other fitting problems.

6. Should I choose a smaller or larger cushion if I am between sizes?

ResMed recommends selecting the larger option when you fall between sizes. Confirm the recommendation using the official sizing template and a proper mask fit check.

7. Can I replace only the F20 cushion instead of buying a new mask?

Yes, if the mask frame and other components remain in good condition and you purchase the correct compatible replacement cushion.

8. How can I tell whether my F20 cushion needs replacing?

Look for cracks, tears, changes in shape, persistent leaks, or deterioration that affects comfort and sealing. Follow the manufacturer’s maintenance guidance.

Medical disclaimer: This article is for general educational purposes and does not replace medical advice or the manufacturer’s instructions. Consult your healthcare professional or CPAP equipment provider if you have persistent mask leaks, skin irritation, or difficulty achieving a comfortable fit.