Replacement Cushion for the PillowFit Deluxe Nasal CPAP System. The PillowFit Deluxe Nasal CPAP System was created for quiet PAP therapy while maximizing comfort through a lightweight, minimal facial contact design. With two breathable, moisture wicking foam straps, the PillowFit is simple to fit to nearly any user. Replacement Cushion made from soft silicon for optimum comfort|Easily replaces old worn out cushions|Helps to create an airtight seal for maximum efficiency of treatment