( O2 Gas detector ) The effect of oxygen-deficient and oxygen-enriched atmospheres
| The effect of oxygen-deficient and oxygen-enriched atmospheres | |
The concentration of oxygen(%) | Symptoms (atmospheric pressure) |
100% | Deadly, 6 minutes(Absolutely airtight environment, such as hyperbaric oxygen chamber |
50% | Deadly, can be cured after 45 minutes treatment. (Absolutely airtight environment, such as hyperbaric oxygen chamber) |
>23.5% | Rich oxygen |
20.96% | Normal |
19.5% | Minimum |
15~19% | Reduce efficiency, and lead to problems of head, lung and circulation system |
10~12% | Shortness of breath, loss of judgment, purple lips |
8~10% | governance loss, syncope, unconscious, pale, nausea and vomiting |
6~8% | 8 minutes, blood pressure, weak heartbeat,mouth breathing, quickly stopped breathing |
4~6% | 40 seconds, convulsions, respiratory arrest, death |
