1-3L/min Adjustable Flow Portable Continuous Oxygen Concentrator Enrichment Machine With Battery

Product Description The lightest adjustable 1L-3L/min flow oxygen concentrator includes a rechargeable battery and easy to use. Two modes of oxygen supply are provided: (1) Continuous oxygen mode:>1L/min, Oxygen concentration is 30±2%. (2)Pulse flow: 1-3L/min adjustable ,Oxygen concentration is 30±2%. Scope of application: for health preservation, improving quality of life, not for medical treatment  Features: Two modes of oxygen supply are provided: (1)Continuous oxygen mode:>1L/min,Oxygen concentration 30±2%. (2)Pulse flow: 1-3L/min adjustable,Oxygen concentration 30±2%. After power on, the device will work for 1 hour by default, and will shut down automatically when the time is over. which is a protective setting to prevent the machine from overheating and Extend service life. We include a 2200MA battery for free (normal charging for about 3-4h, use 2h). Includes a Chargeable battery (2200MA,Charge 3-4 hours ,could use for 2h). can be used in car even the place wi