After many nights and washes, the original headgear stretches and you have to tighten it a little more each night to keep the mask sealed. Replacing the AirFit F20 headgear restores the original tension, without touching the cushion or frame already in place.

• The straps regain their elasticity, so the mask remains stable when you change position during the night
• Less tightening needed, meaning less pressure on the cheeks and forehead upon waking
• Simple spare part, to keep aside when the headgear starts to loosen