Respironics, Inc. designs, develops, manufactures, and markets medical devices used primarily in homes, hospitals, alternative care facilities, and emergency medical settings for the treatment of patients suffering from sleep and respiratory disorders. It offers sleep and home respiratory products that include sleep disordered breathing products, such as continuous positive airway pressure devices and bi-level positive airway pressure electro-mechanical devices, and related patient interfaces and accessories used in the home for the treatment of obstructive sleep apnea, as well as various clinical products that are used to diagnose sleep disorders; home respiratory care products, including noninvasive ventilation products, portable life support ventilators, stationary and portable oxygen delivery products, and oximetry products; and sleep well ventures products, such as Actiwatch, a device to monitor sleep/wake patterns over time and help assess multiple sleep disorders. The company also provides hospital products comprising critical care products, such as ventilators, patient masks, accessories, and patient monitoring technologies, and spontaneous breathing trial products that enable to treat, monitor, and manage respiratory-impaired patients; respiratory drug delivery products, including drug delivery solutions to help treat chronic obstructive pulmonary disease, asthma, pulmonary arterial hypertension, and cystic fibrosis; and children’s medical ventures products for premature babies and ill infants in the hospital or home. It sells its products to medical product service providers, distributors, hospitals, and other institutions through direct and independent sales representatives, sales management personnel, sleep and home respiratory, hospital, and international sales organizations. The company was founded in 1976 and is headquartered in Murrysville, Pennsylvania. As of March 13, 2008, Respironics Inc. operates as a subsidiary of Philips Holding USA Inc.