Oxygen concentrators take air from your surroundings, extract oxygen and filter it into purified oxygen for you to breathe. Oxygen can be drying to your nose so some patients use a humidifier bottle that can be attached to your home unit to help moisten the oxygen you inhale.
Aqua Royal Engineering Office & Works, Plot No. 56/55, Site IV, Industrial Area, Ghaziabad District Sahibabad, Ghaziabad - 201010, Uttar Pradesh, India