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. Cushions are easily replaced to ensure an airtight seal. 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