OXYGEN
"Oxygen rich" means lots of oxygen. If the air in a room is "oxygen rich" things will burn better. "Oxygen poor" means there isn't much and "oxygen starved" means there is none or almost none.
Modern
incomplete combustion
"Oxygen saturation" refers to the fraction of hemoglobin that is saturated by oxygen. It is related to the partial pressure of oxygen in the inspired air and, therefore, to altitude. Normal oxygen saturation in an otherwise healthy individual at sea level is > 95%. Low oxygen saturations can be found in a wide variety of lung diseases.
Ambient air (the air you breathe in) contains about 21% oxygen and about 380 ppm carbon dioxide. This changes slightly summer to winter, downwind of green vegetation during the day and in buildings.
OXYGEN
Oxygen rich air enters the body through the lungs.
hypoxia
Oxygen
Both Inspired and expired air have higher amounts of oxygen than Carbon Dioxide. Inspired air has higher amounts of oxygen than expired, while expired air has higher amounts of Carbon Dioxide than inspired air.
Alveolar air mixes with air in the anatomic dead space on its way, which is rich in oxygen. hence % of oxygen is more in expired air. Thus though amount of CO2 does not decrease, percentage decreases as inspired air contains very less amount of CO2 (0.03%).
"Oxygen rich" means lots of oxygen. If the air in a room is "oxygen rich" things will burn better. "Oxygen poor" means there isn't much and "oxygen starved" means there is none or almost none.
wind.
The aveoli of the lungs are filled with oxygen when you take a breathe in.
oxygen
oxygen! There is 21 percent oxygen in inspired ( the stuff you breath in) air and 13 percent in expired(the stuff you breath out)