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Thread: O2 Oxygen Inate ???

  1. #1 O2 Oxygen Inate ??? 
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    On an average day there is roughly 21% oxygen in the air we breathe. A person on average takes in about 250 L or air per hour via breathing.

    Does the human body respond or act differently to higher concentrations of O2 oxygen?

    Do people with hundreds of plants in their home, or an oxygen generating system become healthier, more energetic, etc. etc.

    Have there been studies on low concentrations of oxygen vs high concentrations of oxygen for humans? - What is the minimum about of oxygen a human needs? Is there a maximum?


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  3. #2  
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    Pure oxygen becomes poisonous at pressures above 2 atmospheres.

    Divers below a certain depth cannot use compressed air, they must use HeLOX, the helium lowers the partial pressure of oxygen.


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  4. #3  
    Forum Cosmic Wizard i_feel_tiredsleepy's Avatar
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    Living in constant high oxygen levels will usually just result in down regulation of RBC production. It would also be incredibly dangerous if a spark ignited .

    There are oxygen bars and stuff where people go to breathe higher levels of oxygen, and they claim to feel invigorated, but I don't think there is any actual data to back that up. Oxygen tanks with higher concentrations are usually only used on people who have breathing problems and need that higher concentration to get enough into their blood to live off of.

    Intuitively, I reason there has to be a concentration of oxygen where it is no longer productive to add more as your blood will be saturated, and I suspect it isn't much higher than the atmospheric level.
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  5. #4 Re: O2 Oxygen Inate ??? 
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    Quote Originally Posted by juantonwan
    On an average day there is roughly 21% oxygen in the air we breathe. A person on average takes in about 250 L or air per hour via breathing.

    Does the human body respond or act differently to higher concentrations of O2 oxygen?

    Do people with hundreds of plants in their home, or an oxygen generating system become healthier, more energetic, etc. etc.

    Have there been studies on low concentrations of oxygen vs high concentrations of oxygen for humans? - What is the minimum about of oxygen a human needs? Is there a maximum?
    Most humans need at least about 0.15 atm partial pressure of oxygen. I don't think having lots of plants in your house could possibly raise the oxygen level in any significant way. They don't really put out that much oxygen, and your house probably isn't sealed well enough to keep any extra oxygen from just diffusing out.
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  6. #5 Re: O2 Oxygen Inate ??? 
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    Quote Originally Posted by Scifor Refugee
    Most humans need at least about 0.15 atm partial pressure of oxygen.
    I'm not dead yet. PP O2 here in Denver is about 0.1 atm (I think).
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  7. #6 Re: O2 Oxygen Inate ??? 
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    Quote Originally Posted by Bunbury
    I'm not dead yet. PP O2 here in Denver is about 0.1 atm (I think).
    A quick google shows it to be about 0.18 atm.
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    My quick google found that the partial pressure of oxygen at 5280 ft ASL is 81 mmHg. One atmosphere is 760 mmHg so the PPO2 is 81/760 = 0.107 atm.

    http://en.allexperts.com/q/Physics-1...h-mountain.htm
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  9. #8 Re: O2 Oxygen Inate ??? 
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    Quote Originally Posted by juantonwan
    On an average day there is roughly 21% oxygen in the air we breathe. A person on average takes in about 250 L or air per hour via breathing.

    Does the human body respond or act differently to higher concentrations of O2 oxygen?

    Do people with hundreds of plants in their home, or an oxygen generating system become healthier, more energetic, etc. etc.

    Have there been studies on low concentrations of oxygen vs high concentrations of oxygen for humans? - What is the minimum about of oxygen a human needs? Is there a maximum?

    REPLY: There was a time in Earth`s history when the oxygen content of the air was significantly higher as a percentile. Giant insects were one of the results. This is because insects absorb their oxygen through their outer membrane and do NOT have lungs or gills. Just an interesting footnote, nothing more. ...Dr.Syntax
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  10. #9  
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    ??????? the composition of the atmosphere in Denver is tha same as Miami percentage wise, only the total pressure is lower..
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  11. #10  
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    Quote Originally Posted by Bunbury
    My quick google found that the partial pressure of oxygen at 5280 ft ASL is 81 mmHg. One atmosphere is 760 mmHg so the PPO2 is 81/760 = 0.107 atm.

    http://en.allexperts.com/q/Physics-1...h-mountain.htm
    I got my data from NOAA, who say the atmospheric pressure is around 0.82 ATM, and multiplied that by 22% oxygen...

    http://www.crh.noaa.gov/bou/include/...webpres_12.txt
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  12. #11  
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    Here's another google result, which agrees with scifor refugee's.
    In Denver, where Pbaro is about 624 mm, that same 21% oxygen gives us a partial pressure of 131 mm; and at FL180, with Pbaro at about 404 mm, only about 85 mm O2 PP.
    http://www.avweb.com/news/aeromed/181937-1.html
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  13. #12  
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    Quote Originally Posted by Scifor Refugee
    Quote Originally Posted by Bunbury
    My quick google found that the partial pressure of oxygen at 5280 ft ASL is 81 mmHg. One atmosphere is 760 mmHg so the PPO2 is 81/760 = 0.107 atm.

    http://en.allexperts.com/q/Physics-1...h-mountain.htm
    I got my data from NOAA, who say the atmospheric pressure is around 0.82 ATM, and multiplied that by 22% oxygen...

    http://www.crh.noaa.gov/bou/include/...webpres_12.txt
    OK, you're right. I was looking at the PPO2 in the blood of us mile high residents, not the atmospheric PP. Sorry for the confusion, and thanks - I've learned something interesting.
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  14. #13  
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    I would suggest that the effects of oxygen bars are most like psycological.
    No long term studies have proved that increased levels (above 21%) of oxygen are beneficial to the body.
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  15. #14  
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    Quote Originally Posted by Samuel P
    I would suggest that the effects of oxygen bars are most like psycological.
    No long term studies have proved that increased levels (above 21%) of oxygen are beneficial to the body.
    I read in the elevator today that oxygen can cure cluster headaches, whatever they are. I got off before I could read the source. The elevator TV screen never lies.
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  16. #15  
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    yes the body does have different reactions to various concentrations of O2
    In higher concentrations of pure O2 the O2 becomes poisonous.
    At lower concentrations ofcourse we die due to lack of O2.

    well people with more plants in their homes do become energitic because of excess of O2 where as people in crowded areas have to breathe more of CO2
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