In real life, I believe that many people have this feeling, in a room with no air circulation, you will feel that the air is very dull, and drowsy and difficult to breathe. According to studies, this is caused by too high a concentration of carbon dioxide and too low an oxygen content in the air. Experts say that the amount of oxygen in a confined space is limited, and a lot of oxygen is consumed during our breathing, while producing a lot of carbon dioxide.
During our breathing, carbon dioxide content accounts for 0.4%-0.5% of the exhaled gas, equivalent to 4000-5000ppm, and each adult exhales 20-30L of carbon dioxide per hour, and children are about half of adults. Once there are too many people and poor ventilation in the room, the oxygen content in the indoor air will be sharply reduced, and the carbon dioxide content will skyrocket, which will cause death when it reaches more than 0.8% (equivalent to 8000ppm).
Of course, in actual life, carbon dioxide deaths are extremely rare, but the harm of carbon dioxide to our health cannot be underestimated. In general, the effects of carbon dioxide on physical health are manifested as fatigue, drowsiness, sleeplessness, sluggishness, headache, and even brain damage, coma, etc. Especially for children who are in the developing period, it can even affect height development and brain development.
This is because the oxygen consumption of the human brain accounts for 20% of the whole body, and once the brain is deprived of oxygen for 4-6 minutes, it will be on the verge of death.
Lack of oxygen for 5 to 10 minutes can cause permanent brain damage. And children's bodies are in the development stage, all bone growth, cell growth needs sufficient oxygen, especially children's brains, if once long-term lack of oxygen, it will cause developmental delay, brain atrophy and other serious consequences!
Obviously, what causes hypoxia is the lack of air circulation, and air circulation will also cause the accumulation of a large number of pollutants in indoor air, such as formaldehyde, bacteria and other pollutants, which are not less harmful than carbon dioxide. The solution to this situation is also very simple, sufficient ventilation is sufficient. Many people will want to open the window for ventilation, but in actual life, the limitations of window ventilation are very large, and the ventilation effect is too passive and difficult to control.
Therefore, we need an active ventilation method that can control the effect, such as the German Seiko Northumberg fresh air system, which can discharge formaldehyde and other pollutants and dirty air in the indoor air outdoors without opening the window, and at the same time introduce the outdoor fresh air into the room after heavy filtration and purification, which is equivalent to installing a breathable "lung" for the house, so as to continuously ensure the freshness and health of the indoor air.