October 19, 2026 13 min read

Replacement Cushion for ResMed AirFit F20:

Using a CPAP machine every night can make a big difference in your sleep routine, but comfort matters just as much as consistency. If your mask starts leaking air, feels uncomfortable around your nose, or shows signs of wear, it may be time to consider a replacement cushion for ResMed AirFit F20.

The AirFit F20 is a full-face CPAP mask designed to cover both the nose and mouth. Its silicone cushion helps create a seal while you sleep, supporting your prescribed positive airway pressure therapy. Replacing a worn cushion can help restore a comfortable fit without requiring you to purchase an entirely new mask.

At Alfa Healthcare Supply Inc., we understand that finding the right replacement CPAP supplies should be simple. This guide explains how to choose the correct cushion, recognize when it needs replacing, care for it properly, and get more value from your sleep therapy equipment.

What is a Replacement Cushion for ResMed AirFit F20?

A replacement cushion for ResMed AirFit F20 is the removable silicone component that rests against your face and helps seal the mask around your nose and mouth.

Instead of replacing the complete mask when the cushion wears out, you can usually replace this individual component while continuing to use your compatible mask frame, headgear, and elbow assembly.

Replacement-Cushion-for-ResMed-AirFit-F20-A-Complete-Guide-to-Comfort

ResMed designed the AirFit F20 cushion with InfinitySeal technology. Its flexible silicone construction is intended to accommodate facial movement and support a reliable seal during sleep.

The replacement cushion is available in three sizes:

  • Small: For users who need a smaller cushion profile.
  • Medium: For users whose facial measurements match the medium sizing guide.
  • Large: For users who need a larger cushion profile.

Choosing the correct size is important. A cushion that is too small or too large may cause air leaks, discomfort, or pressure around the nose.

Why Should You Replace Your AirFit F20 Cushion?

Your CPAP mask cushion experiences regular contact with facial skin, natural oils, moisture, and cleaning products. Over time, these factors can affect the silicone’s condition and its ability to seal properly.

Here are common reasons to purchase a replacement cushion for ResMed AirFit F20.

1. Air Leaks During Sleep

If air escapes around the edges of your mask, you may notice air blowing toward your eyes or hear a hissing sound. A worn cushion may contribute to this problem.

However, leaks can also result from incorrect sizing, loose or uneven headgear, facial hair, sleeping position, or an improperly assembled mask. Check the fit before assuming the cushion is the only cause.

2. Visible Wear and Tear

Inspect your cushion regularly. Cracks, tears, stiff edges, discoloration, or deformation may indicate that it needs replacement.

Damaged silicone may not create the seal you need, even when the mask straps are adjusted correctly.

3. Skin Irritation or Pressure Marks

A cushion that no longer fits comfortably may contribute to redness or pressure around the nose and cheeks. Skin irritation can also result from excessive strap tension, accumulated oils, or an incorrect size.

Replacing a worn cushion and reviewing your mask fit may improve comfort. If irritation continues, ask your healthcare provider or equipment supplier for fitting advice.

4. Reduced Comfort

A well-maintained mask should feel secure without requiring excessive tightening. If your cushion has become stiff, sticky, or misshapen, a replacement may help make your nightly routine more comfortable.

Key Features of the ResMed AirFit F20 Replacement Cushion

Before ordering a replacement cushion for ResMed AirFit F20, it helps to understand the features that make this component useful.

InfinitySeal Silicone Design

The cushion uses ResMed’s InfinitySeal technology to support a seal across different facial shapes and movements. The flexible design helps accommodate normal movement during sleep.

Full-Face Coverage

The AirFit F20 is designed to cover both the nose and mouth. This makes it an option for people whose prescribed CPAP setup requires a full-face interface.

Three Available Sizes

Small, Medium, and Large options help users select a cushion based on their facial measurements. Do not assume that a larger size is automatically more comfortable. Follow the manufacturer’s sizing guide.

Replaceable Construction

The cushion can be removed from the compatible mask frame and replaced separately. This allows you to maintain the rest of your mask equipment when those components remain in good condition.

Compatibility With AirFit F20 for Her

The genuine AirFit F20 replacement cushion is also designed for the AirFit F20 for Her mask. Verify the exact mask model before purchasing.

Important: The AirFit F20 and AirTouch F20 are different cushion products. Although some AirTouch F20 cushions are designed to fit the AirFit F20 frame, they use a different material and care routine. Check the manufacturer’s compatibility information before selecting a substitute.

How to Choose the Right Replacement Cushion for ResMed AirFit F20

Selecting the right cushion involves more than choosing the size you remember buying previously.

Step 1: Confirm Your Mask Model

Check your existing mask, packaging, or user guide. Make sure it is the ResMed AirFit F20 or AirFit F20 for Her.

Do not assume that a cushion designed for another ResMed mask will fit correctly.

Step 2: Check Your Current Cushion Size

Look for the size marking on the bottom of the cushion. It may show S, M, or L.

If the current cushion fits well and has provided a reliable seal, the same size may be a reasonable starting point. If you have experienced persistent leaks or discomfort, reassess your fit instead of automatically ordering the same size.

Step 3: Use the Official Sizing Guide

Follow the ResMed AirFit F20 sizing guide to determine the appropriate cushion size. If your measurements fall between sizes, consult the manufacturer’s instructions or ask a qualified equipment professional for assistance.

Step 4: Buy From a Reliable Supplier

Choose a reputable medical equipment supplier and verify that the product is genuine, correctly labeled, and compatible with your mask.

Check the product description carefully to confirm whether the listing includes only the cushion or a complete mask assembly.

How to Replace Your AirFit F20 Cushion

Replacing the cushion is generally straightforward. Always follow the instructions supplied with your mask.

  1. Stop the CPAP machine. Disconnect the mask from the air tubing if needed for easier handling.
  2. Remove the old cushion. Gently release it from the mask frame according to the manufacturer’s instructions.
  3. Inspect the frame. Look for cracks, damage, residue, or other signs of wear.
  4. Position the new cushion. Align it with the compatible frame and press it into place as directed.
  5. Check the connection. Make sure the cushion is seated evenly and securely around the frame.
  6. Put the mask on. Position it according to the fitting guide and adjust the headgear evenly without overtightening.
  7. Test the seal. Start the CPAP machine and check for leaks. Reposition the mask if necessary.

If the mask continues to leak after correct assembly and adjustment, check the cushion size and headgear condition. Contact your equipment supplier or healthcare provider if you cannot achieve a comfortable seal.

How Often Should You Replace Your Cushion?

ResMed’s US replacement guidance lists full-face mask cushions for replacement as often as once a month, depending on their condition. Your actual schedule may vary with use, cleaning, insurance coverage, and the condition of your equipment.

You may need a replacement cushion for ResMed AirFit F20 sooner if you notice:

  • Cracks or tears in the silicone.
  • Stiff, damaged, or misshapen edges.
  • Persistent leaks despite correct fitting.
  • Discomfort that continues after cleaning and adjustment.
  • A cushion that cannot be cleaned properly.

Do not wait for the cushion to fail completely before inspecting it. Regular checks can help you identify wear before it disrupts your sleep routine.

If your insurer covers replacement supplies, confirm its specific schedule and documentation requirements before ordering.

How to Clean and Maintain Your AirFit F20 Cushion

Proper cleaning helps remove facial oils and residue that can interfere with the cushion’s contact with your skin.

Daily Cleaning

  1. Remove the cushion from the mask if required by the cleaning instructions.
  2. Wash it gently with warm, drinking-quality water and mild liquid detergent.
  3. Use gentle rubbing to remove accumulated oils and residue.
  4. Rinse thoroughly to remove all soap.
  5. Allow the cushion to air-dry on a clean surface away from direct sunlight.

Avoid harsh cleaners, strong fragrances, abrasive brushes, and products that may damage the silicone. Follow the manufacturer’s current cleaning instructions.

Weekly Inspection

During your regular mask cleaning, inspect the cushion and frame for wear. Check the cushion’s edges, the connection points, and the frame where the cushion attaches.

Do not continue using a damaged component simply because it has not reached a particular replacement date.

Remember: The silicone AirFit F20 cushion has different care requirements from the memory-foam AirTouch F20 cushion. Always follow the instructions for your exact product.

AirFit F20 Cushion vs. AirTouch F20 Cushion

Choosing between these products can be confusing because their names are similar.

FeatureAirFit F20AirTouch F20
Cushion materialSiliconeMemory foam
Main design featureInfinitySeal technologyUltraSoft memory foam
Cleaning approachWash according to the manufacturer’s instructionsFollow the specific memory-foam care instructions
Replacement timingOften monthly, depending on conditionFollow the product-specific schedule
CompatibilityDesigned for AirFit F20 masksCheck the manufacturer’s frame compatibility information

Both products are intended for full-face CPAP use, but their cushion materials and maintenance requirements differ. Choose according to your mask setup, comfort needs, and professional guidance.

Where Can You Buy a Replacement Cushion for ResMed AirFit F20?

You can look for a replacement cushion for ResMed AirFit F20 through authorized medical equipment suppliers, reputable CPAP retailers, and official ResMed sales channels.

When comparing options, consider the following:

  • Correct size: Verify Small, Medium, or Large before checkout.
  • Product authenticity: Look for clear manufacturer information and accurate product identification.
  • Compatibility: Confirm that the cushion is intended for your exact mask model.
  • Product contents: Check whether the listing includes a single cushion or additional components.
  • Delivery and returns: Review shipping timelines and the seller’s return policy.
  • Insurance coverage: Contact your insurer if you plan to use benefits for replacement supplies.

Alfa Healthcare Supply Inc. serves customers seeking medical supplies and durable medical equipment. Visit Alfa Healthcare Supply Inc. to explore the website and check available CPAP supplies. Confirm product availability, sizing options, and current ordering requirements before purchasing.

Common Mistakes to Avoid

A few simple precautions can help you avoid unnecessary replacement costs and fitting problems.

Buying the wrong size: Confirm the cushion size and use the official sizing guide when needed.

Overtightening the headgear: Excessive strap tension may distort the cushion and worsen discomfort. Adjust the mask evenly according to the fitting guide.

Using harsh cleaning products: Strong chemicals may damage the silicone or leave unwanted residue.

Ignoring persistent leaks: Leaks may indicate an incorrect fit, damaged cushion, worn headgear, or another equipment issue.

Assuming every F20 cushion is identical: AirFit and AirTouch cushions have different materials and care requirements. Check compatibility before ordering.

Replacing the entire mask unnecessarily: If only the cushion is worn and the remaining components are in good condition, a compatible replacement cushion may be sufficient.

Final Thoughts: Replacement Cushion for ResMed AirFit F20

A comfortable CPAP mask can make it easier to maintain your nightly sleep therapy routine. A well-fitting replacement cushion for ResMed AirFit F20 helps maintain the contact between your mask and your face, while regular cleaning and timely replacement can support better equipment care.

Before ordering, confirm your mask model, select the correct size, and purchase from a reputable supplier. If discomfort or air leaks continue, seek professional fitting advice rather than relying only on tighter straps or repeated cushion replacements.

Alfa Healthcare Supply Inc. aims to help customers find the medical supplies they need with greater confidence. Explore the Alfa Healthcare Supply for available products and ordering information.

Frequently Asked Questions: Replacement Cushion for ResMed AirFit F20

1. What is a replacement cushion for ResMed AirFit F20 used for?

It replaces the silicone component that seals against your nose and mouth during CPAP therapy. Replacing a worn cushion may help restore a comfortable fit and reduce leaks caused by cushion wear.

2. What sizes are available?

The genuine AirFit F20 replacement cushion is available in Small, Medium, and Large. Select your size using the manufacturer’s sizing guide.

3. Does the cushion fit AirFit F20 for Her?

Yes. The genuine AirFit F20 cushion is designed for both the AirFit F20 and AirFit F20 for Her masks. Verify your mask model before ordering.

4. Can I replace the cushion without buying a new mask?

Generally, yes. The cushion is a separate replaceable component. You can continue using the existing frame and headgear if they remain compatible and are in good condition.

5. How often should I replace my cushion?

ResMed’s US guidance recommends replacement as often as monthly, depending on condition. Inspect the cushion regularly and follow your supplier’s and insurer’s applicable guidelines.

6. Why is my AirFit F20 still leaking after replacing the cushion?

Check the cushion’s size and installation, adjust the headgear evenly, and make sure the mask sits correctly on your face. If leaks continue, ask your equipment supplier or healthcare provider to assess the fit and equipment.

7. Can I use an AirTouch F20 cushion instead?

Some AirTouch F20 cushions are designed to fit the AirFit F20 frame, but they use memory foam rather than silicone. Confirm compatibility and follow the correct care instructions before switching.

8. How do I know when my cushion needs replacing?

Look for cracks, discoloration, stiffness, deformation, persistent leaks, or difficulty cleaning the cushion. These signs may indicate that replacement is appropriate.

Medical information note: This article is for general product education and is not a substitute for the manufacturer’s instructions or advice from your healthcare professional.