CPAP Mask Part Lifespan - When Should You Replace Them?
CPAP mask parts don't last forever. Silicone degrades from skin oils, heat and repeated washing. A worn cushion creates leaks that directly undermine your therapy. Knowing when to replace parts is essential for maintaining effective treatment.
Recommended Lifespan by Part
| Part | Indicative lifespan | Replacement frequency |
|---|---|---|
| Cushion / seal (silicone) | 3 to 6 months | Every quarter recommended |
| Mask frame | 6 to 12 months | 1 to 2 times per year |
| Headgear straps | 6 months | Twice a year |
| Standard CPAP tube | 6 to 12 months | 1 to 2 times per year |
| Disposable filter (AirSense 10/11) | 2 to 4 weeks | Monthly minimum |
| Foam filter (washable) | 6 months | Annual replacement or as needed |
The Silicone Cushion: The Most Critical Part
The cushion degrades fastest because it contacts your skin directly. Natural oils soften the silicone progressively until it loses its seal.
Signs your cushion needs replacing
- Persistent leaks despite correct tightening and a clean face
- Sticky or tacky silicone even after washing
- Discolouration: yellowing or browning of white silicone
- Visible deformation: cracks, bubbles or permanent creases
- Persistent odour that does not disappear after cleaning
- Red marks or irritation on the face upon waking
How Leaks Affect Your Therapy
- Lower effective pressure: air escapes before reaching your airway at the correct pressure.
- Automatic pressure increase: APAP devices compensate for leaks by raising pressure, which can be uncomfortable.
- Higher residual AHI: more residual apnea events, poorer sleep quality.
- Sleep disruption: leak noise wakes the patient and partner.
- Eye dryness: leaks directed towards the eyes cause irritation.
Headgear: Often Overlooked
Headgear straps stretch gradually with use. Slack headgear no longer holds the mask firmly in place, promoting leaks - especially when changing position during the night.
CPAP Filters
- White disposable filter (AirSense 10 and 11): replace every 2-4 weeks. Available: AirSense 10 filters and AirSense 11 filters.
- Grey foam filter (washable): rinse with water every 2 weeks, replace every 6 months.
Where to Buy Replacement Parts
VivaRespire stocks genuine ResMed parts for the most popular masks:
- AirFit F20 (full face mask)
- AirFit N20 (nasal mask)
- AirFit P10 (nasal pillow mask)
- AirFit F40 (compact full face mask)
Browse our CPAP mask parts section to find the right cushion, frame or headgear for your model.
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