- Electrically powered medical oxygen concentrator.- The device save your effort for filling oxygen cylinders permanently.- The device is used for cases of hypoxia in the blood.- Equipped with a humidifying bottle to prevent drying out of the airway.- Equipped with four wheels for easy mobility.- The oxygen ratio can be controlled from 0.5 to 5 liters / min.- The possibility of operating the device for permanent use in case of need.- There is an internal air purifier that can be cleaned or changed every 100 hours.- Oxygen purity up to 96%.- Devilbiss brand.- Two years of warranty.