If your CPAP mask has started leaking, your machine sounds louder than usual, or you’re waking up tired again, it may not be the machine itself. It could be your supplies.
Many people don’t realize that CPAP masks, cushions, tubing, and filters wear out over time. Even if they look “fine,” they may not be sealing or filtering properly.
Here’s what you need to know about replacing CPAP supplies, including when you should replace them and how often.
Why Replacing CPAP Supplies Is So Important
Your CPAP machine delivers steady air pressure to keep your airway open. But that pressure depends on properly functioning parts.
Over time:
- Mask cushions lose their seal
- Headgear stretches out
- Tubing can develop small cracks
- Filters clog with dust and debris
When parts wear out, you may notice leaks, discomfort, or reduced therapy effectiveness. That can lead to inconsistent use, and CPAP therapy only works when you use it consistently.
CPAP Replacement Schedule
Here’s a general CPAP supply replacement schedule recommended by manufacturers and commonly followed by insurance providers:
- Mask cushions or nasal pillows: Every 6 months
- Mask frame: Every 3 months
- Headgear: Every 6 months
- Tubing: 1 every 3 months
- Disposable filters: 2 per month
- Reusable filters: 1 every 3 months
- Humidifier water chamber: 1 every 6 months
- Full mask system: Every 6 months
If you’re unsure when you last replaced your supplies, that’s a sign it may be time to check in.
Print or Download the CPAP Replacement Schedule (PDF)

Signs It’s Time to Replace Your CPAP Supplies
Not sure whether you’re due? Watch for these signs:
- Your mask leaks even when adjusted
- You wake up with red marks or irritation
- There’s a musty smell from the tubing
- Your machine sounds louder than normal
- Your filter looks gray or discolored
- You’re feeling more tired despite using your CPAP
Small issues can snowball. Replacing a worn cushion is often much easier than struggling with leaks for weeks.
What Happens If You Don’t Replace CPAP Supplies?
Using worn CPAP supplies can:
- Reduce the pressure delivered to keep your airway open
- Increase air leaks
- Cause skin irritation
- Lower overall therapy compliance
Inconsistent CPAP use may allow sleep apnea symptoms to return. Untreated sleep apnea has been linked to high blood pressure, heart disease, stroke, and chronic fatigue.
If your therapy feels uncomfortable, it’s often a supply issue, not a sign that CPAP “isn’t working.”
Does Insurance Cover CPAP Replacement Supplies?
In many cases, yes.
Most insurance plans follow a routine replacement schedule similar to the one above. You may need to demonstrate CPAP compliance (typically at least 4 hours per night on 70% of nights) to continue receiving coverage.
At ThedaCare At Home, we can verify your insurance coverage, track your replacement schedule, help you order the eligible supplies, and answer any questions you may have about compliance with CPAP therapy. Please don’t be afraid to reach out.
Contact ThedaCare for Help with CPAP
Should I Order CPAP Supplies Online?
Online ordering can seem convenient. But without guidance, it’s easy to choose the wrong size or order incompatible parts. Plus, you could miss out on insurance benefits or overlook fit issues. Working with a local CPAP provider means you have real support when something doesn’t feel right.
If you’re also dealing with mask leaks or discomfort, you may benefit from a refit.
Related: CPAP Mask Fit Tips That Actually Make a Difference
Get Help from Your Local CPAP Experts
Common Questions About CPAP Supplies
How often should I replace my CPAP mask?
Mask cushions should typically be replaced every 3–6 months. Full masks usually last 6–12 months, depending on wear.
How do I know if my CPAP cushion is worn out?
If it feels stiff, looks discolored, or leaks despite adjustments, it may need replacement.
What happens if I stop replacing CPAP supplies?
Therapy may become less effective, leading to leaks, discomfort, and reduced compliance.
Where can I buy CPAP supplies near me in Wisconsin?
ThedaCare At Home provides CPAP equipment and replacement supplies in Appleton, Berlin, New London, Oshkosh, Shawano, and Waupaca.
Small Replacements Can Make a Big Difference
If your CPAP hasn’t felt quite right lately, don’t ignore it. A simple supply refresh can restore comfort, improve seal quality, and help you sleep better again.
Contact ThedaCare At Home or stop by your nearest location to check your replacement schedule and make sure your therapy is working the way it should.
February 25, 2026 by ThedaCare At Home