Unfortunately, no one can breathe 100% oxygen. Oxygen makes up about 21% of the air we breathe in, and although some species of animals, such as some types of fish, can tolerate higher concentrations of oxygen, human beings cannot. In fact, breathing oxygen at concentrations higher than the normal 21% can be dangerous and even deadly.
The Dangers of Breathing High Concentrations of Oxygen
Exposure to oxygen concentrations higher than 21% can cause several health problems. These include oxygen toxicity, which can cause seizures and other neurological symptoms, as well as lung damage and lung failure. In addition, breathing high concentrations of oxygen can cause anoxia, a condition in which the body does not get enough oxygen. Anoxia can lead to tissue damage, organ failure, and even death.
The Benefits of Oxygen Therapy
Oxygen therapy is a medical treatment that involves providing a patient with oxygen at concentrations higher than the normal 21%. This therapy is used to treat a number of conditions, including chronic obstructive pulmonary disease (COPD) and other respiratory illnesses. It can also be used to treat anemia, shock, and other medical conditions. Oxygen therapy is generally safe when it is used as directed by a doctor.
Conclusion
No one can breathe 100% oxygen, as it is not safe for humans. However, oxygen therapy is a safe and effective medical treatment when it is used as directed by a doctor.