The chemical properties of oxygen are relatively active. In addition to rare gases， small active metal elements such as gold， platinum， silver and most other elements can react with oxygen， these reactions are called oxidation reactions， oxygen belongs to the medical oxygen category of drug management， can be used as a gas for the prevention and treatment of hypoxia， then oxygen is suitable for those who use it?

1. Sports people. Use oxygen during sports or competitions to eliminate shortness of breath， shortness of breath and chest tightness and to restore strength.

2. Long-term driving people: long-term driving health care with oxygen to make you fatigue， refresh and ensure driving safety.

3. People with dirty air. When air pollution is serious or conference room， office， living room air stagnation， poor circulation， poor air， the regular use of oxygen can clean the respiratory tract， replace the lungs of harmful gases， so that people are refreshed.

4. people with brain overdraft: students studying or exams (especially before the midterm and college entrance exams) can use it to prevent dizziness and vomiting， shortness of breath， chest tightness， mental fatigue， make the mind clear， focus， quick thinking and improve memory.

5. People under pressure at work: wXITE-collar workers who work under high pressure for a long time， often use portable oxygen bottles can relieve nervous tension， boredom， and maintain a high level of energy.