Inogen, Inc. is a medical technology company that develops, manufactures and markets portable oxygen concentrators (POCs). Its POCs is used to deliver supplemental long-term oxygen therapy to patients suffering from chronic respiratory conditions. The Company's Inogen One systems concentrate the air around the patient to offer a single source of supplemental oxygen anytime, anywhere with a single battery. Its product offering includes Inogen One G5, Inogen One G4, and Inogen One G3, for long-term oxygen therapy. All of its Inogen One systems are equipped with Intelligent Delivery Technology, a form of pulse-dose technology from which the patient receives a bolus of oxygen upon inhalation. The Company has also launched Inogen Connect, a wireless connectivity platform for the Inogen One G4 and Inogen One G5 consisting of a front-end mobile application for use by long-term oxygen therapy users and a back-end database portal for use by homecare providers.