Multiple Choice
What is an adequate amount of oxygen present in a confined space before entering with a non-supplied air respirator?
A) Between 1 and 2%
B) Between 2 and 4%
C) Between 4 and 8%
D) Between 10 and 16%
E) Between 18 and 22%
Correct Answer:
Verified
Correct Answer:
Verified
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