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Home Q & A Board Biology-Related Homework Help Medicine
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JaySanz JaySanz
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6 years ago
What is the recommended ratio of fresh air exchanges to recirculated air per hour in Class A ORs?
 
  a. 5 air exchanges with 1 exchange of outside air
  b. 10 air exchanges with 2 exchanges of outside air
  c. 15 air exchanges per hour with 3 exchanges of outside air
  d. 25 air exchanges with 5 exchanges of outside air
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#1
6 years ago
ANS: C
Fifteen air changes per hour (ACH) with three exchanges of outside air (OA) are recommended for Class A operating rooms. Class B and C operating rooms and caesarean delivery suites require twenty ACH with four OA exchanges according to the 2010 AIA Guidelines for Design and Construction of Health Care Facilities.
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