Rotech Healthcare Inc., together with its subsidiaries, provides home medical equipment and related products and services in the United States. It rents and sells oxygen and other respiratory therapy equipment and services, including oxygen concentrators, liquid oxygen systems, high pressure oxygen cylinders, homefill systems, portable oxygen concentrators, continuous positive airway pressure devices and supplies, bi-level positive airway pressure devices and supplies, non-invasive positive pressure ventilator devices and supplies, and nebulizer devices and medications. The company also sells and rents a line of durable medical equipment, such as hospital beds, wheelchairs, walkers, patient aids, and other ancillary supplies. Its patient service technicians or clinicians provide instruction and training to the patient and the patients family regarding equipment use and maintenance for the prescribed therapy. In addition, the companys activities include reimbursement by third-party payors comprising Medicare, Medicaid, the Veterans Administration, and private insurers. Rotech Healthcare Inc. serves older patients with breathing disorders, such as chronic obstructive pulmonary diseases, which include chronic bronchitis, emphysema, obstructive sleep apnea, and other cardiopulmonary disorders. As of December 31, 2009, it had approximately 450 operating locations located primarily in non-urban markets in 48 states. Rotech Healthcare Inc. was founded in 1981 and is headquartered in Orlando, Florida.