Home oxygen health care treatment is gradually becoming a fashion, oxygen is one of the most direct and effective treatment measures to improve hypoxic diseases, but there are many misconceptions in the selection and use of oxygen health care products, which directly affects the therapeutic effect. First, home health care oxygen will not cause oxygen toxicity First of all, we need to know what is oxygen toxicity: when the inhalation of high concentration, high flow, high partial pressure of oxygen more than a certain time limit, the production of oxygen radicals is greater than the removal, too much oxygen radicals may cause functional or organic damage to the body, usually this damage is called oxygen toxicity. But the right amount of oxygen radicals in the body is good for the body, it can promote the synthesis of prostaglandin, thyroxine, prothrombin, collagen, ribonucleoside, etc. In addition, oxygen radicals also have a sterilization effect, the normal state of oxygen radical production and removal in the body to maintain a dynamic balance. How much oxygen will cause oxygen toxicity? Usually, oxygen poisoning may occur when oxygen is inhaled by nasal catheter under normal pressure (oxygen concentration is about 35%) for about 15 days continuously, or oxygen is inhaled by normal pressure closed mask (portable hyperbaric oxygen) for about 8 hours continuously, but it is impossible to inhale for such a long time continuously when it is applied at home. The dependence of oxygen intake is specifically for the dependence of certain drugs, especially the drugs that act on the nervous system are more likely to produce dependence. This includes both mental and physical dependence: the so-called mental dependence refers to the patient’s perverted craving for the addictive drug, in order to obtain the perverted pleasure after taking the drug. The so-called somatic dependence refers to the patient’s repeated use of a certain drug, the central nervous system has produced some kind of pathophysiological changes, so that the need for the persistence of the drug in the body, in order to avoid the specific withdrawal symptoms arising from the withdrawal of the drug. The reasons are as follows: firstly, oxygen is not a drug; secondly, oxygen is a gas that the human body needs to take in from the air continuously for a long time since birth; thirdly, oxygen treatment or relief is the symptoms of hypoxia, which does not bring any special pleasure; fourthly, we cannot expect a lifelong cure from oxygen, and the previous symptoms that appear after stopping oxygen are actually still the manifestation of hypoxia, not withdrawal symptoms. It is not a withdrawal symptom. In short, oxygen inhalation will not produce dependence. Third, it is very important to choose a suitable oxygen inhalation method. Different oxygen inhalation methods directly determine the amount and effect of oxygen inhalation, traditional oxygen inhalation is the nasal catheter oxygen inhalation method, because the oxygen inhalation also inhaled a lot of air, so the inhalation is not pure oxygen, portable hyperbaric oxygen (atmospheric pressure closed mask oxygen inhalation) is different, not only the inhalation is 100% pure oxygen, and only when inhaling there will be oxygen outflow, so compared with nasal catheter oxygen inhalation will not cause oxygen inhalation. Compared with nasal catheter oxygen inhalation, it will not cause oxygen waste and improve the utilization rate of oxygen. Different diseases should choose different methods of oxygen inhalation. Respiratory system diseases are suitable for nasal catheter oxygen inhalation, while cardiovascular, cerebrovascular, students, pregnant women, and sub-health conditions are suitable for portable hyperbaric oxygen (oxygen inhalation by atmospheric pressure closed mask). For cardiovascular and cerebrovascular diseases, it is recommended to insist on oxygen inhalation for about 10-20 minutes every day, and change the thought of oxygen inhalation only when the life is dying or when the disease is committed in the past, this kind of short time oxygen inhalation will not cause adverse effects on the human body, but can effectively improve the hypoxic state of the body and delay the process from quantitative to qualitative change due to hypoxia. Oxygen partial pressure inhaled by different oxygen inhalation methods: 1.Oxygen partial pressure in air under normal pressure: 760mmHg×21%=159mmHg 2.Oxygen partial pressure inhaled by nasal catheter oxygen inhalation under normal pressure: 760mmHg×30%-35%≈250mmHg 3.Oxygen partial pressure inhaled by portable hyperbaric oxygen (oxygen inhalation by closed mask under normal pressure): 760mmHg×100%=250mmHg 760mmHg × 100% = 760mmHg Fourth, negative oxygen ion generator can not improve the room oxygen deficiency negative oxygen ion: simply put, is the capture of an electron of oxygen molecules, colorless, tasteless, can be transferred under the action of airflow, diffusion. Under normal circumstances, the air molecules show electrically neutral (not charged), in cosmic rays, ultraviolet light, trace radiation, lightning strikes, etc., so that the air molecules lose part of the electron rotating around the nucleus, these escaped free electrons with a negative charge, and will be combined with other neutral gas molecules, so that it is also negatively charged, because the ability of oxygen to capture free electrons is much greater than other gases. Therefore the vast majority of negative ions generated in the air are negative oxygen ions. However, negative oxygen ions are unstable and can easily lose an electron and become ozone. In the air can generally survive a few seconds to a few minutes, its production and disappearance will maintain a dynamic balance. In general, the concentration of negative oxygen ions in the air is more on sunny days than on cloudy days, more in summer than in winter, more in the morning than in the afternoon, high concentration of negative oxygen ions around the seashore, mountains, forests and green belts, how much negative oxygen ions, is one of the important criteria to measure whether the air is fresh. According to the World Health Organization, the concentration of negative oxygen ions per cubic centimeter is not less than 1000 to 1500, for fresh air. Negative oxygen ions in the air to remove dust, destroy germs, purify the air, can not increase the concentration of oxygen in the air, the role of negative oxygen ions on the human body is still at the beginning of the research stage, so rely on this to improve indoor oxygen concentration, improve the body’s lack of oxygen state of view is not yet scientific basis. Fifth, the oxygen machine out of the oxygen is not pure oxygen Most of the current oxygen machine using the molecular sieve principle of work, the national standard requires 2 liters per minute when the flow of oxygen concentration to reach about 90%, the general oxygen concentration of 99.5% or more is called pure oxygen, due to the amount of oxygen production per unit of time is certain, so the greater the flow, the lower the oxygen concentration, do not make the mistake of thinking that the oxygen machine is pure oxygen. In the purchase of any oxygen products to take into account your use and purpose. Sixth, the oxygen concentration in the Fragrant Hills is not higher than the city Air is flowing, whether it is downtown Beijing, or Fragrant Hills, Summer Palace and other places with high forest cover and sufficient water, the oxygen concentration in the air is the same, not the same is the negative oxygen ions, as mentioned earlier the amount of negative oxygen ions determines the quality of the air, it can only be said that the negative oxygen ion content in the air near forests, water sources and other venues is much higher than the air in the city. Air quality is better, people to these places after the activity only so feel comfortable body, should be the result of aerobic exercise, not high oxygen concentration.