Oxygen concentrator :
Atmospheric air has roughly 78 percent nitrogen and 21 percent oxygen. Oxygen concentrators take in the ambient air and increase the oxygen concentration, by filtering out the nitrogen. Oxygen concentrators are also useful for patients experiencing post-COVID complications which necessitate oxygen therapy.
Oxygen concentrators can be used only in moderate cases of COVID-19 (Oxygen saturation level between 90-94) when the patient experiences a drop in oxygen levels, where the oxygen requirement is a maximum of five litres per minute.
If oxygen saturation level between 90-94 (mild to moderately ill patients), should depend on an oxygen concentrator and can use it at home. Anyone with oxygen saturation depleting below 80-85 may need higher flow of oxygen and will have to switch to a cylinder or liquid medical oxygen supply.
Assume that a person's oxygen saturation is between 87 and 90 percent and that he is placed on an oxygen concentrator. If the oxygen saturation increases and stays between 92 and 94 percent, the concentrator is working. However, if the patient's oxygen saturation begins to drop, he will either need to turn to a cylinder with a higher oxygen supply or be admitted to the hospital Click here to learn more.
Note: A patient in need of oxygen would require at least 1 litre per minute. While portable oxygen spray canisters can have up to 12 litres of oxygen, this will not last for more than 10 minutes or even less and delays the actions required. So Oxygen cans cannot be used in patients requiring Oxygen support.