The Respironics Esprit Ventilator is designed to effectively deliver both invasive and noninvasive ventilation. This ventilator combines sophisticated design with easy to use features including: volume control, pressure control and fully integrated noninvasive ventilation. Because the Esprit Ventilator does not need wall air or compressors it can be run on either AC power, battery pack or an external battery. The mobility and versatility of this ventilator make it ideal for use in any setting, hospital or sub-acute care facilities.