An oxygen concentrator has the role of keeping the blood saturation within normal limits and can sometimes be recommended for patients who have had COVID and have been left with prolonged respiratory failure due to the disease (difficulty breathing, excessive fatigue, confusion).It may also be indicated in patients with severe asthma, lung cancer, chronic obstructive pulmonary disease, pulmonary fibrosis, heart abnormalities, or other conditions that lead to decreased oxygen saturation in the blood.Doctors point out that this device should not be used as a home treatment method for COVID!If a person has symptoms of COVID and the pulse oximeter indicates oxygen saturation values ​​below 91%, the doctor's advice is to go to a medical unit immediately, because they are indications of the aggravation of the disease.Under no circumstances should you buy oxygen concentrators from the internet and be treated according to the instructions received on social networks from uninformed people.These devices can do more harm than good and indirectly allow the infection to develop into extremely severe forms if appropriate treatment is not instituted quickly.Oxygen saturation below 91% may signal lung damage as a result of COVID disease and requires emergency medical attention!Unlike oxygen cylinders used in medical units, this oxygen concentrator (portable or stationary) can be used at home, but only on the recommendation of the doctor, post-COVID, and following exactly the instructions for use.Too little or too much oxygen can be fatal, so it is strictly forbidden to use such a device without following specific instructions and recommendations.The price of an oxygen concentrator varies between 2,500 and 14,000 lei, depending on various characteristics.Some companies also offer customers the option of renting such a medical device.It should be noted, again, that the device should be set to the values ​​recommended by the attending physician and it is necessary to monitor the patient at regular intervals!For some patients, high oxygen flow / minute may be required, while others require only half or a quarter of the capacity of the device.Observe the following rules when using an oxygen concentrator at home:If you use an oxygen concentrator at home and the saturation values ​​decrease or increase unusually, contact a doctor immediately, do not change the oxygen parameters by yourself!A pulse oximeter is required to continuously monitor the saturation of the blood and the effectiveness of the oxygen concentrator at home.This device helps to monitor non-invasive hemoglobin oxygenation (oxygen saturation in the blood).The pulse oximeter must be used as directed to determine the oxygen saturation values ​​correctly.For example, the pulse oximeter should never be placed on a false or nail polish, as this may alter the values ​​indicated by the device.It should be noted that certain medical conditions, but not only, can affect the accuracy of the measurement of oxygen saturation.These include: hypothermia, hypotension, vasoconstriction, excessive movement during the measurement, muscle spasms, excessive light.At the same time, high levels of bilirubin and blood lipids, as well as smoking status, can affect the accuracy of the result.Here are the signals the body can send when oxygen saturation is low:Enter the search word and press ENTER