Made in Singapore New ResMed Airtouch F20 latest model memory foam nasal cushion L large size ResMed's latest and most comfortable facial cushion, the memory foam fits closely to the user's facial contours, reducing air leakage Compatible with ResMed AirFit or AirTouch full face masks Officially recommended to replace the memory foam nasal cushion monthly to maintain optimal performance https://www.resmed.com/en-us/sleep-apnea/cpap-parts-support/sleep-apnea-full-products-list/cpap-masks/airtouch-f20/