Oxygen concentrator
Oxygen concentrators are one of the substitute to the Gas cylinder. Oxygen concentrators are devices that helps concentrate oxygen from the ambient air by removing nitrogen and delivering pure oxygen to individuals, whose blood oxygen levels (SpO2) readings drop less than 93%.
When blood
saturation levels drop below 94%, it could be a sign of respiratory distress.
Usually this merits hospitalisation, but due to the surge in COVID-19 cases and
oxygen beds in short supply, the device could help those whose saturation
levels range between 88% to 92%.
A
concentrator consists of a compressor and sieve bed filter. The former squeezes
atmospheric air and also adjusts the pressure at which is delivered. The sieve
bed is made of a material called Zeolite that separates the nitrogen.
For COVID-19
patients, a device with a 5L-10L output is recommended. What’s important though
is that it delivers air that contains at least 90% pure oxygen. The cost of
these devices can range from ₹30,000 to ₹99,000. There are also pulse and
continuous flow concentrators where the latter delivers oxygen at a constant
rate and the other uses a sensor to deliver a puff of oxygen when a user is
about to inhale. OxLife Independence, Drive Medical DeVilbiss ,
nvacare Platinum etc., are called the best concentrator in India.
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