( 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( percent ) | Symptoms (atmospheric pressure) |
100 percent | Deadly, 6 minutes(Absolutely airtight environment, such as hyperbaric oxygen chamber |
50 percent | Deadly, can be cured after 45 minutes treatment. (Absolutely airtight environment, such as hyperbaric oxygen chamber) |
>23.5 percent | Rich oxygen |
20.96 percent | Normal |
19.5 percent | Minimum |
1519 percent | Reduce efficiency, and lead to problems of head, lung and circulation system |
1012 percent | Shortness of breath, loss of judgment, purple lips |
810 percent | governance loss, syncope, unconscious, pale, nausea and vomiting |
68 percent | 8 minutes, blood pressure, weak heartbeat,mouth breathing, quickly stopped breathing |
46 percent | 40 seconds, convulsions, respiratory arrest, death |
