Free tool
When to replace every part of your CPAP.
Manufacturer-recommended cadence for filters, cushions, hose, water chamber, and headgear. Pick your machine — we'll build a personalized 12-month calendar you can download, print, or share.
25 swaps scheduled across 5 parts.
Your 12-month replacement calendar
AirSense 11 AutoSet · starting July 3, 2026
havencpap.com/tools/cpap-replacement-schedule
Jul 26
31 Fri
Standard filter
Aug 26
28 Fri
Standard filter
Sep 26
25 Fri
Standard filter
Oct 26
1 Thu
Mask cushion
1 Thu
Hose / tubing
23 Fri
Standard filter
Nov 26
20 Fri
Standard filter
Dec 26
18 Fri
Standard filter
30 Wed
Mask cushion
30 Wed
Hose / tubing
30 Wed
Water chamber
30 Wed
Headgear
Jan 27
15 Fri
Standard filter
Feb 27
12 Fri
Standard filter
Mar 27
12 Fri
Standard filter
30 Tue
Mask cushion
30 Tue
Hose / tubing
Apr 27
9 Fri
Standard filter
May 27
7 Fri
Standard filter
Jun 27
4 Fri
Standard filter
28 Mon
Mask cushion
28 Mon
Hose / tubing
28 Mon
Water chamber
28 Mon
Headgear
Take it with you
Add to your calendar — or share with whoever helps you order.
Why replacement cadence matters.
CPAP supplies aren't "fail-then-replace" parts — they degrade slowly enough that you don't feel it night-to-night. By the time symptoms show up (mask leaks, sore spots, dry throat, machine noise), the part has often been past its replacement window by months.
Filters — every 2 to 4 weeks
The filter is the first line of defense between room air and your lungs. A clogged filter forces the machine to work harder, which dries out the airflow and can introduce stale-air odors. Hypoallergenic versions catch finer particles and benefit users with pets, allergies, or in dusty/wildfire-prone areas. The 2-week end of the range applies to disposable filters used in high-pollen environments; the 4-week end to standard pollen filters in clean indoor air.
Mask cushions — every 3 months
The silicone in mask cushions softens and loses its seal over time. Skin oils, sweat, and the warmth of nightly use compound the wear. A worn cushion is the #1 cause of leaks, sore spots, and the kind of bedtime ritual where you keep adjusting straps to chase a seal. Three months is the manufacturer recommendation for nearly all major mask brands (ResMed AirFit, Philips DreamWear, F&P Eson).
Hose / tubing — every 3 months
Tubing accumulates moisture, calcium deposits from humidifier water, and minute amounts of biofilm. Even daily cleaning slows but doesn't stop the buildup. Worn tubing is also a noise source — when your machine sounds louder than it used to, the hose is often the culprit rather than the motor.
Water chamber — every 6 months
The chamber's silicone seal degrades and mineral deposits accumulate. A failing seal lets pressurized air bypass the humidifier, which is why you end up with a dry throat even with the water tank full. Six months is the manufacturer-recommended replacement; if you use distilled water religiously, you can sometimes extend to nine months.
Headgear — every 6 months
The straps lose elasticity and the magnetic clips (on newer models) eventually weaken. Stretched headgear is why people over-tighten masks at bedtime — chasing a seal that's actually about the strap, not the cushion. New headgear often solves what feels like a mask problem.
Hard truths
- Insurance allowances are minimums, not optimums. Medicare typically pays for a filter every 2 weeks and a cushion every 3 months — which happens to be exactly the manufacturer recommendation. Many private plans pay less. If you're paying out of pocket and seeing visual wear sooner, replace sooner.
- Cleaning extends life, but only so far. Daily soap-and-water cleaning is essential and helpful — but it doesn't reverse silicone aging or mineral deposit accumulation. Don't use cleaning as an excuse to extend replacement.
- If the AHI on your machine creeps up, look at the supplies first. Before assuming therapy is failing, check filter age and cushion age. Worn parts are responsible for a meaningful fraction of AHI drift in long-term CPAP users.
Or just let us handle it
Haven ships every part on the schedule above — automatically.
Skip the calendar. Skip the reorder phone call. Skip the "wait, when did I last replace this?" thirty seconds before bed.