Download user guide See conformity statement Documentation H4i user guide Keep exploring ResMed Online Store The ResMed Online Store puts all the information you need at your fingertips, with immediate access to pricing, shipping and invoice details. Explore Device & accessory maintenance Your patient’s sleep apnoea treatment journey requires constant maintenance. Learn how they can take care of their equipment for optimal therapy. Explore Keeping track of your patients with AirView AirView, ResMed’s cloud-based patient management system, provides remote clinical insight into your patients’ therapy data. Explore Related products Stellar mobility bag Intended for mobile use of the Stellar, fixed to a wheelchair or hung on a shoulder Read more Remote alarm II and hospital alarm system cable Enables the use of Stellar and Astral ventilator systems in both the hospital and home for patients who need closer monitoring Read more ResMed power station II An external long-life, lithium-ion battery that simply works alongside ResMed sleep therapy devices or ventilators Read more Do you still have a question? Contact us