The replacement Nasal Cushion for the Wisp Nasal Mask comes as a single silicone nasal cushion in your desired size: petite, small / medium, large, or extra large. All four sizes fit on the Wisp Nasal CPAP Mask. The Wisp cushion is small and lightweight with minimum facial touchpoints for a maximum seal.
Philips Wisp (Nasal) Cushion
Nasal Mask Cushion