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body cells need oxygen, and need to get rid of carbon dioxide, so we inhale oxygen. the O2 is exchanged with CO2 in blood, and then, we exhale CO2. the O2 goes to the cells, and the cells give off CO2. then the blood carries the CO2 to the lunhs, and the cycle starts again.

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Oxygen gas provides additional oxygen to the body, which can help people with breathing difficulties by increasing the amount of oxygen available for their lungs to absorb. This can improve oxygen delivery to organs and tissues, making it easier for the individual to breathe and reducing symptoms like shortness of breath.

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10mo ago
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If oxygen is more concentrated, a person needs to breathe less to receive the same amount of oxygen. (Normal concentration in the atmosphere is about 21%.)

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14y ago
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oxygen is the purpose of the chemical reactions in your body, without it, our body dies and cannot produce energy.

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15y ago
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Q: How does oxygen gas help people with breathing difficulties?
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