It is designed to offer relief from the symptoms of dryness and congestion associated with CPAP therapy without compromising therapy effectiveness or ease of use. The flip-top lid design eliminates the need to remove the tube for refilling, and the unobtrusive compact design makes it ideal for travel. The seamlessly integrated unit simply snaps into place whenever required and is powered by ResMed’s S8 devices—no additional power cords or cables required. The easy-to-use dial control and power-on light plus heating indicator are other user-friendly features of the HumidAire 3i.