Elanra Medical Devices are acknowledged globally as the world\'s only genuine therapeutic Ionisers (also known as Negative Ion Generators or Oxygen Concentrators). Elanra Medical Ionisers are Australian owned and manufactured, Elanra is a medical device that generates Special Oxygen. Simply turn it on whilst you sleep, are at work or travelling. There\'s no mask and no drugs. It\'s the easiest way to stay healthy.