If I'm in an elevator that is 2 meters by 2 meters, how long will it take for the oxygen to be depleted?
Md Ariful Islam
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,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
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পিজিটি(মেডিসিন)
The air in elevators is not sealed in. You can have any amount of oxygen you need.
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