hengitysilmaksi

Hengitysilmaksi is a Finnish term that translates to "breath air" or "respiratory air." It refers to the air that is taken into the lungs during inhalation and expelled during exhalation. This air is crucial for the body's metabolic processes, providing oxygen necessary for cellular respiration and removing carbon dioxide, a waste product.

The composition of inhaled air differs from that of exhaled air. Inhaled air is primarily composed of nitrogen (approximately 78%), oxygen (approximately 21%), argon (approximately 0.9%), and trace amounts of other gases, including carbon dioxide (around 0.04%). During the process of gas exchange in the lungs, oxygen is absorbed into the bloodstream, and carbon dioxide is released from the blood into the alveoli to be expelled.

Consequently, exhaled air has a slightly lower concentration of oxygen (approximately 16%) and a significantly higher concentration of carbon dioxide (approximately 4%). It also contains a higher concentration of water vapor, making it warmer and more humid than inhaled air. The continuous cycle of inhaling and exhaling this "breath air" is fundamental to maintaining life. Changes in the composition or flow of respiratory air can indicate various physiological conditions and are often monitored in medical assessments.