Exclusively for the Japanese market: QuietLife 3 is the technologically advanced, low-sound level, low-power-consumption, high-performance oxygen concentrator for home health and clinical settings. Offered in an attractive, lightweight (26 kg) cabinet, this unit was specifically designed to meet the requirements of the sound-sensitive, energy-conscious Japanese market. QuietLife 3 provides easy operation for the patient and important visual and audible alarms, including a monitoring of oxygen concentration and an alarm to indicate that oxygen tubing may be obstructed.