Designed to accommodate every patient and ensure a comfortable, hassle-free night, the Mirage Activa™ LT nasal mask is the only mask you will ever need. With improved Active Cell™ technology from ResMed, the Mirage Activa LT's cushion expands and contracts to accommodate movement and therapy pressure changes throughout the night. This product creates a gentle, secure seal, and a dynamic defense against leak, and is easy to use for clinicians and patients alike. Please note that headgear does not automatically come with the order. If you'd like your purchase to include headgear, please select your headgear option.