2. the current national standard of the purity of bottled oxygen for ≥ 99.5%, the oxygen generator produced by the state does not specify the oxygen standard regardless of the molecular sieve oxygen generator or oxygen-rich membrane oxygen; oxygen purity are lower than the bottled oxygen. The national standard for bottled oxygen is ≥99.5%, and there is no national standard for oxygen produced by an oxygen concentrator, regardless of whether it is a molecular sieve oxygen concentrator or an oxygen-rich membrane oxygen concentrator; the purity of oxygen is lower than that of bottled oxygen. When using an oxygen concentrator to absorb oxygen, it is important to open the window to ventilate or the oxygen concentrator air duct to the outdoor air, in order to improve the concentration of oxygen.
Reference:
There is also a trace of CO2
There is also a trace of CO2
There is a trace of CO2
The CO2 can stimulate the human body to do its work. p>CO2 stimulates respiration Oxygen and a small amount of carbon dioxide
CO2 stimulates respiration
If there is only oxygen, it can cause oxygen poisoning
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