Question:
Mouth to mouth respiration provides what percentage of oxygen ?
Mouth to mouth respiration provides what percentage of oxygen ?
Updated On: Jul 15, 2025
- 10%
- 16%
- 21%
- 100%
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The Correct Option is B
Solution and Explanation
Mouth-to-mouth respiration is a technique used to provide oxygen directly to someone who is not breathing properly. When a person breathes out, the exhaled air contains approximately 16% oxygen. This is because the human body uses some oxygen for metabolic processes and expels air with less oxygen. Therefore, during mouth-to-mouth resuscitation, the exhaled air provides approximately 16% oxygen to the recipient, which is enough to sustain life in an emergency situation until more advanced medical help can be provided.
| Method | Oxygen Percentage |
|---|---|
| Ambient Air | 21% |
| Exhaled Breath (Mouth-to-Mouth) | 16% |
Thus, the correct answer to the question is 16%.
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