The Zen-O Lite™ delivers oxygen up to 1.05 LPM (1050 ml) in a self-regulating pulse mode that matches the patient's breathing pattern. This small portable oxygen concentrator comes with a rechargeable battery and a convenient car charger for on-the-go recharging. As an FAA-approved portable oxygen concentrator, Zen-O Lite™ can be taken on planes, allowing patients to experience the joy of traveling.