Ultra Compact - Though being a full-face unit, it rests under nose. Effectively prevent discomfort on the nose bridge. Small: Nose width within 1-1.3 inches; Medium: Nose width over 1.3 inches.
Simple Use - The cushion is easy to remove and reinstall. Convenient when daily cleaning or replacing.
Notice - There is no connection between nose and mouth (Not product damage). Due to structure differences, please kindly check user manual first for better use.