Normal atmospheric air contains approximately 21% oxygen when inhaled in.
It is a rare local stone which gets stronger and durable with exposure at atmospheric air.
Fresh atmospheric air flows through a compressor that brings it to higher pressure.
At the lower end of the plant atmospheric air is inserted into the water by an ejector.
These systems designated for indoor operation are set to effectively produce gaseous oxygen from atmospheric air.
Some companies produce high-efficiency systems for oxygen production from atmospheric air with the help of membrane technology.
Inergen has almost the same density as normal atmospheric air.
However, in this case the culture medium has to be adjusted to atmospheric air.
Then the medium must equilibrate over night on a thermo plate at 37 C under atmospheric air.
Two large tanks of atmospheric air which are used as standards are also attached.