Understanding Oxygen Concentration & Atmospheric Pressure

Today we'll be taking a look at a potentially life saving electronic device that measures oxygen concentration in the air we breathe. A device like this is highly useful for people that are highly concerned about oxygen levels being too low or too high. Some examples would be mining, underground bunkers, or high elevations. I'll also be giving you a few nice demonstrations(vacuum chamber, rebreathing, & more). Enjoy!

*Link to this O2 Meter shown in this video: http://bit.ly/2gSR3WZ

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