Multiple Choice
What are the Centers for Disease Control and Prevention (CDC) guidelines for OR air exchanges per hour?
A) 10-15 with 20% fresh outside air
B) 10-15 with 90% filtered recirculated air
C) 20-25 with 20% fresh outside air
D) 20-25 with 90% filtered recirculated air
Correct Answer:

Verified
Correct Answer:
Verified
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