Quantity of fresh air required for a man is 1000 cubic feet of air for every____________?
Correct answer: D. 20 minutes
- A. 5 minutes
- B. 10 minutes
- C. 15 minutes
- D. 20 minutes
Explanation
The traditional ventilation standard used in such questions is about 1,000 cubic feet of fresh air per person every 20 minutes. This replaces exhaled air and helps limit the buildup of carbon dioxide indoors.
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