Carbon dioxide is a colorless, tasteless gas that is heavier than air and the gas itself shows little toxicity, but suffocation is possible. If the amount of carbon dioxide is higher than the amount of oxygen circulating in the brain, the respiratory disorder, headache, tinnitus, and blood pressure will rise.
Risk of CO2
|450ppm or less||It is outdoor air in ordinary everyday life.|
|450-1000ppm||The air is clear and there is no big trouble in breathing.|
|1000-2000ppm||The air becomes cloudy and sleepy.|
|2000-5000ppm||My head hurts, I get more sleep, I lose my concentration, my heart rate gets faster and I have a slight vomiting reaction.|
|5000ppm or more||It can lead to permanent brain damage and even death in severe cases.|