Hengityskaasu

Hengityskaasu, or breathing gas, refers to a mixture of gases used in various applications, including diving, medical treatments, and industrial processes. The most common form is compressed air, which consists primarily of nitrogen (around 78%) and oxygen (about 21%), with trace amounts of other gases like argon and carbon dioxide. In specialized contexts, such as deep-sea diving, enriched air (nitrox) is often used, containing higher concentrations of oxygen (typically 32–36%) to reduce nitrogen narcosis and increase safety at greater depths.

In medical settings, hengityskaasu may refer to oxygen therapy, where pure oxygen or oxygen-enriched mixtures are administered to patients with respiratory conditions. These gases are delivered via masks, nasal cannulas, or mechanical ventilators to improve oxygenation in the blood. Industrial applications include welding, where inert gases like argon or helium are used to protect molten metal from atmospheric contamination.

The safety of hengityskaasu depends on proper handling and storage. Compressed gases must be stored in approved cylinders with pressure regulators to prevent leaks or explosions. Oxygen-rich environments can be hazardous due to fire risks, while nitrogen-rich mixtures may cause decompression sickness if improperly managed, particularly in diving scenarios. Regulations governing its use vary by country and application, emphasizing the need for proper training and certification for handling these gases.

Hengityskaasu is also relevant in scientific research, such as in controlled-environment experiments or physiological studies. Its precise composition can be adjusted to simulate different atmospheric conditions, making it valuable in fields like aerospace and environmental science. Overall, while hengityskaasu is essential for many modern applications, its use requires careful consideration of safety protocols to avoid risks.