The S TE LLA R ventilation system is designed to provide ventilation to non-dependent adult and pediatric patients (13 kg / 30 lb or more), who are breathing freely and who suffer from partial or total respiratory failure, with or without obstructive sleep apnea. The device is for non-invasive use, or for invasive use with a tracheotomy tube without cuff or sleeve. Parauso in the hospital or at home.