They are the devices that are used to separate oxygen from the ambient air.
Ambient air consists of 78% of nitrogen and 21% of oxygen and 1% of other gases.
It can be operated at homes as well.
When they are helpful?
The oxygen level in human blood is more than 94, and when the blood saturation level decreases it is a sign of respiratory distress.
Acute respiratory distress i.e. blood saturation level is between 88-94, can be tackled by an oxygen concentrator.
An oxygen contractor can provide air consisting of 95% of oxygen.
However, severe respiratory distress cannot be treated by an oxygen concentrator, as it required 99% oxygen.
How does it work?
It consists of a compressor and sieve bed filter.
Compressor squeezes atmospheric air and also adjusts the pressure at which it is delivered.
The sieve bed is made of Zeolite , a material that separates the nitrogen.
There are two sieve beds that work to both release oxygen into a tank that’s connected to the cannula as well as release the separated nitrogen and form a continuous loop that keeps producing fresh.