Oxygen therapy: Oxygen is mainly used in medical treatment to treat diseases caused by hypoxia, low oxygen or anaerobic environments, such as diving, mountaineering, high-altitude flight, space navigation, etc. For patients with cardiovascular diseases, acute and chronic respiratory failure, hypoxemia, etc., oxygen therapy is essential.

First aid: In emergency medicine, oxygen is commonly used for emergency rescue measures such as cardiopulmonary resuscitation to improve patient survival rates.

Operating room: During the surgery, oxygen is used to maintain the patient's normal respiratory function.


Oxygen has a wide range of applications in the medical and health field. The following are some main application aspects:

1. Medical oxygen supply: Oxygen is an indispensable gas in medicine and plays an important role in the treatment and rehabilitation of many diseases. Providing patients with an appropriate amount of oxygen through nasal cannulas or masks can correct hypoxia and alleviate symptoms such as breathing difficulties. Oxygen inhalation is a commonly used adjunctive treatment method in the treatment of respiratory diseases such as chronic obstructive pulmonary disease and pneumonia.

2 Emergency measures: In emergency medicine, oxygen is often used for emergency measures such as cardiopulmonary resuscitation (CPR). For patients with respiratory or cardiac arrest, oxygen inhalation and cardiopulmonary resuscitation can improve their survival rate. In addition, oxygen therapy is also crucial in emergency situations such as poisoning and suffocation.

3. Operating room application: During the surgical process, oxygen is often used to anesthetize and maintain the patient's normal respiratory function.

4. Promoting wound healing: Adequate oxygen supply plays an important role in promoting cell growth and tissue repair during the wound healing process.

5. Improving chronic diseases: Oxygen can improve the oxygen content in the blood, enhance metabolism, enhance the body's immune function, and effectively prevent and alleviate some chronic diseases such as tuberculosis, cirrhosis, chronic bronchitis, etc.

6. Psychological health: Oxygen can also help alleviate tense emotions, improve sleep quality, and alleviate depression.

7. Anti viral and anti-inflammatory effects: Oxygen can inhibit viruses, effectively reduce the occurrence of infectious diseases, and help suppress inflammation, promote cell regeneration, and delay aging.

It should be noted that the use of medical oxygen must be guided and managed by professional medical institutions. When using it, it should be used reasonably according to the condition and clinical needs to avoid adverse consequences.

In addition, with the advancement of technology, the application of oxygen in the medical and health field is constantly expanding and innovating. For example, modern medical equipment such as oxygen concentrators and oxygen bags have made home oxygen therapy more convenient and popular. Meanwhile, the application of oxygen in areas such as health management, elderly care, and sports injuries is gradually increasing.

Overall, oxygen is widely used in the field of medical and health, playing an important role in maintaining human health, preventing and treating diseases.

Food preservation: Oxygen is used as a preservative in food packaging. By controlling the oxygen concentration, the shelf life of food can be extended, and the freshness and taste of food can be maintained.

Brewing and fermentation: During the brewing and fermentation process, oxygen also plays an important role. Moderate oxygen supply can promote the growth and metabolism of microorganisms, thereby accelerating the brewing and fermentation process.


The application of oxygen in the food and beverage industry is quite important, mainly manifested in the following aspects:

1. Food preservation: Oxygen is one of the main causes of food spoilage, but by controlling the concentration of oxygen, the shelf life of food can be extended. For example, in packaged food, reducing oxygen exposure can inhibit bacterial growth and food oxidation, thereby maintaining the freshness and taste of the food. Especially in the preservation process of perishable foods such as meat, fruits, and vegetables, the role of high-purity oxygen is particularly significant.

2. Beverage bubbles: During the beverage production process, oxygen (usually mixed with other gases such as carbon dioxide) can be used to create bubbles, increasing the taste and durability of the beverage. This technology makes beverage bubbles more delicate and long-lasting.

3 Food processing: In the food processing process, oxygen serves as a combustion aid gas, which can enhance flame combustion, improve heating efficiency and temperature. For example, in food processing such as bread baking, barbecue, and baking, the use of high-purity oxygen can improve the cooking effect and taste of food.

In addition, oxygen can also be used in combination with other gases such as nitrogen to further improve the quality of food and beverages. For example, nitrogen can eliminate air, create a hypoxic environment, inhibit the growth of bacteria and mold, extend the shelf life of food, and improve its edibility. Meanwhile, nitrogen can prevent the oxidation of fats, natural pigments, and micronutrients, maintain the original color, aroma, and improve food quality.

However, although oxygen has many applications in the food and beverage industry, its use must comply with strict safety regulations and standards to ensure product quality and safety.

Smelting process: In steel smelting, oxygen is used as an oxidant to strengthen the smelting process, improve steelmaking efficiency and quality. Oxygen blowing can shorten smelting time and improve the quality of steel.

Cutting and welding: Oxygen is used in combination with combustible gases (such as acetylene, propane, etc.) for metal cutting and welding. Oxygen serves as a combustion aid during this process, providing the necessary oxygen to support combustion.

Chemical synthesis: In the chemical industry, oxygen is used as an oxidant for feed gas, such as in the production of synthetic ammonia, strengthening the process, and increasing fertilizer yield.


Oxygen is widely used in the industrial field, covering multiple aspects. The following are some main application areas:

1. Metal smelting: In the process of metal smelting, oxygen is used as an oxidant, reacting with impurity elements in the metal ore to convert them into soluble oxides, making it easier to extract metals from the ore. This application is common in the smelting industry of steel, non-ferrous metals, and other industries.

2. Combustion and cutting: Oxygen is a commonly used combustion aid. In industrial production, it is often mixed with combustible substances (such as acetylene, propane, etc.) to form a high-temperature flame, which is used for cutting, welding, and heating materials such as metals. This type of application is common in industrial fields such as steel, machinery, and shipbuilding.

3. Oxidation reaction: Oxygen has strong oxidizing properties and can undergo oxidation reactions with many elements and compounds. In industrial production, oxygen is often used as an oxidant to promote chemical reactions. For example, in industrial processes such as petrochemicals, pharmaceuticals, and synthetic ammonia, oxygen plays an important role.

4. Waste gas treatment: Oxygen also plays an important role in industrial waste gas treatment. Injecting oxygen into the exhaust gas can promote the oxidation and decomposition of harmful substances, thereby reducing the emission of pollutants. This application helps to improve environmental quality and protect the ecological environment.

Overall, oxygen is widely used in the industrial field, involving multiple industries and fields. These applications not only improve the efficiency and quality of industrial production, but also contribute to improving environmental quality and protecting the ecological environment. However, when using oxygen, it is also necessary to pay attention to safety, comply with relevant safety regulations and operating procedures, to ensure the safety and effectiveness of the use process.

Wastewater treatment: Oxygen can be used in the wastewater treatment process to promote the growth and metabolism of microorganisms by providing oxygen, thereby accelerating the degradation and removal of organic matter.

Waste gas treatment: Oxygen can also be used for waste gas treatment, converting harmful gases into harmless gases through oxidation reactions, achieving the goal of environmental protection.

Soil remediation: By increasing the oxygen content in the soil, oxygen can promote the growth and reproduction of soil microorganisms, accelerate the degradation and transformation of pollutants in the soil, and thus improve soil quality.


Oxygen has a wide range of applications in the field of environmental protection. The following is an introduction to its main applications:

1. Wastewater treatment: Organic matter oxidation and decomposition: Through oxidation reaction, oxygen can oxidize and decompose organic matter in wastewater, convert it into harmless substances, and improve water quality. This helps to reduce the content of organic pollutants and improve the ecological environment of water bodies.

2 aeration system: In sewage treatment plants, oxygen is used in the aeration system to improve wastewater treatment efficiency by promoting the suspension and sedimentation of biological particles. The aeration process can increase the dissolved oxygen content in wastewater, which is beneficial for the growth and metabolism of microorganisms and accelerates the degradation of organic matter.

3. Waste gas treatment: conversion of harmful substances. Through oxidation reactions, oxygen can convert harmful substances in exhaust gas into harmless substances, such as oxidizing harmful gases into carbon dioxide and water vapor, reducing atmospheric pollution. This helps to purify the air and protect the atmospheric environment.

4. Soil remediation: Promoting microbial growth: By increasing the oxygen content in the soil, oxygen can promote the growth and reproduction of soil microorganisms, accelerate the degradation and transformation of pollutants in the soil. This helps to improve soil quality and restore soil ecological function.

In addition, oxygen can also be used in other areas in the field of environmental protection, such as the incineration treatment of solid waste and ecological restoration. By utilizing oxygen reasonably, it can promote the development of environmental protection, reduce environmental pollution, and protect the human living environment.

It should be noted that when using oxygen in the field of environmental protection, operations should be carried out according to specific application scenarios and environmental standards to ensure safety and effectiveness. At the same time, it is also necessary to pay attention to the requirements of environmental laws and regulations, comply with relevant regulations, and promote the sustainable development of environmental protection.

Biological research: Oxygen is used in experiments such as cell culture and cell separation in biological research.

Other scientific experiments: In scientific research, oxygen may also be used in other experiments to support combustion or as a reactant.


Oxygen has a wide range of applications in scientific research, involving multiple disciplines such as biology, chemistry, and physics. The following are some application examples of oxygen in the field of scientific research:

1. Biological research:

Cell culture: Oxygen is an essential factor in cell culture. Cells require oxygen for respiration to generate energy to sustain their life activities. In the laboratory, the growth environment of cells is usually maintained by introducing a mixture of oxygen and carbon dioxide into the cell culture chamber.

Mitochondria research: Mitochondria are the "power factories" within cells, responsible for oxidizing food molecules and releasing energy. Oxygen, as the ultimate electron acceptor of mitochondria, is crucial for their function and energy production. Studying how mitochondria utilize oxygen for oxidative phosphorylation and other processes can help to gain a deeper understanding of the mechanisms of cellular energy metabolism.

2 Chemical research:

Oxidation reaction research: Oxygen is a strong oxidant that can undergo oxidation reactions with many substances. In chemical research, oxygen is widely used in various oxidation reactions, such as organic synthesis, metal oxidation, etc.

Catalyst research: Oxygen can also serve as a catalyst or a part of a catalyst to promote chemical reactions. For example, in fuel cells, oxygen participates as an oxidant in the reaction, promoting the electrochemical reaction between hydrogen and oxygen to generate electricity.

3 Physics research:

Combustion research: Oxygen is one of the necessary conditions for combustion reactions. In physics, by studying the supply and consumption of oxygen during combustion, one can gain a deeper understanding of the essence and mechanism of combustion.

Superconducting material research: Oxygen plays an important role in the preparation process of certain superconducting materials. By controlling the oxygen content and supply method, the performance and stability of superconducting materials can be affected.

In addition to the aforementioned applications, oxygen also plays an important role in other scientific research fields, such as materials science and environmental science. With the continuous development of science and technology, the scientific research and application of oxygen will continue to expand and deepen. It should be noted that during scientific research experiments, oxygen should be used correctly according to experimental requirements and safety standards to ensure the safety and accuracy of the experiment.