Millions of sleep apnea patients have benefited from the superior comfort and seal of ResMed's Ultra Mirage Nasal Mask. Now there's an even better mask available-the Ultra Mirage II Nasal Mask (UMII). The UMII combines the best features of the Ultra Mirage mask and other popular ResMed nasal masks, offering a unique combination of comfort, convenience, quietness, and effectiveness. The UMII is similar in shape and design to the original Ultra Mirage, and offers the same high performance and quality. New features include improved forehead support with flexible pads that conform to the shape of your forehead for even more comfort and stability.