ResMed Inc. is a holding company. Through its subsidiaries, the Company develops, manufactures and distributes medical equipment for treating, diagnosing and managing sleep-disordered breathing (SDB) and other respiratory disorders, including obstructive sleep apnea (OSA). It has developed nasal continuous positive airway pressure (CPAP) as a non-invasive treatment for OSA. CPAP systems deliver pressurized air, typically through a nasal mask, to prevent collapse of the upper airway during sleep. The Company has developed a number of products for SDB and other respiratory disorders, including airflow generators, diagnostic products, mask systems, headgear and other accessories. ResMed Inc. sells its products in over 70 countries through a combination of wholly owned subsidiaries and independent distributors to sleep clinics, home healthcare dealers and third-party payers. On April 30, 2009, it acquired Respicure Medsys PVT.LTD. In October 2009, ResMed Inc. acquired Laboratoires Narval.