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Jul 22, 2024 · Based on oxygen alone, estimates are that the average person could survive in a completely sealed, airtight room for 12 full days! Running out of oxygen in a room is quite unlikely. The Change Is In Carbon Dioxide. While oxygen levels are pretty much constant over the day, what does change is the amount of carbon dioxide in the air. We tracked ...
- Thomas Talhelm
Not really. Tests in a real apartment — with as many as seven people in a small room — show less than 1% change in oxygen levels in a closed room. While oxygen levels are pretty much constant over the day, what does change is the amount of carbon dioxide in the air.
Sep 19, 2024 · Factors Affecting Oxygen Levels in a Closed Room. Several factors influence oxygen levels in closed spaces. Room size plays a vital role, as larger rooms have more air volume, making oxygen depletion less likely. Ventilation is equally important, as rooms with air exchange systems or windows allow fresh air to enter.
A person uses ~550L of oxygen per day, or ~19 cubic feet; overnight, you'd use about 6.3 cubic feet. A small room (10x10x10) has 1000 cubic feet of air, of which ~21%/210cubic feet is O2. Dangerous/deficient O2 levels are about 19.5% and below. So in a small, hermetically sealed room, you'd lower the O2 levels from 21% to ~20.37%, which is ...
May 27, 2005 · The air breathed out of the lungs contains approximately 15% oxygen and 5.6% CO2. A person at rest inhales and exhales approximately 6 litres of air per. minute but in times of stress, this may increase to more than 100 litres per minute. Of course, even in a closed room, the system is not perfectly sealed.
Also, once the O2 levels reach about 11% in the room, you'd pass out (syncope) 3 and would shortly thereafter die if oxygen levels didn't increase. Now if we back up to the simple answer, it means that after 3.9 days, you've really only breathed in the entire volume of the room's air one complete time (assuming adequate circulation and homogenization), thus taking the %O2 for the room from 21% ...
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Nov 4, 2016 · With you breathing in the room, you can consider the volume of O2 in the room as a function of the time: VO2(t) = VO2(t0) - C * M * t where M is your weight in kg, and where C is converted to m3/(min.kg). An oxygen defficient atmosphere is an atmosphere for which oxigen content is below 19.5 % of the volume [2].
