Over time, a mask's headgear stretches and loses tension. You tighten it more each evening, your forehead and cheeks become marked, and the mask still slips during the night. Replacing only the AirFit N20 headgear restores a firm fit without changing the entire mask.

• The straps adjust on each side to regain even tension, without tightening more than necessary
• The mask stays in the same place on your nose when you change position, meaning fewer air leaks in the morning
• Genuine ResMed part designed for the N20 frame, no improvised adjustments