The Mirage Activa™ LT cushion and clip is a replacement seal for the ResMed Activa™ LT nasal CPAP mask. Your CPAP mask cushion seal and headgear will wear out over time a need replaced to make sure that you get the most out of your sleep apnea therapy. Indicators that it is time to replace your cushion can be either difficulty maintaining a good seal even though you have cleaned it thoroughly or you notice the clear silicone seal is now turning a yellow color.
The Mirage family of CPAP masks are older ResMed generations. If you currently use a Mirage series mask you may want to consider upgrading to the FX family or AirFit™ N20 series of nasal masks.