ResMed Inc. develops, manufactures, distributes, and markets medical devices and cloud-based software applications to diagnose, treat, and manage respiratory disorders in the United States and internationally. The company operates in two segments, Sleep and Breathing Health, and Residential Care Software. It offers sleep recorders for the diagnosis and titration of sleep apnea in sleep clinics, hospitals, and at home, including ApneaLink Air, a portable diagnostic device that measures oximetry, respiratory effort, pulse, nasal flow, and snoring; NightOwl, a portable, cloud-connected, and disposable diagnostic device that measures AHI based on derived peripheral arterial tone, actigraphy, and oximetry; and EasyCare Tx, a sleep lab solution.