What's the distribution pattern air on the air handling unit in an operating room?

The air-distribution pattern in an operating room is equally important to the number of air exchanges (ACH). Non-aspirating diffusers are recommended and sized to provide a face velocity of25 to35 cfm / ft2 (127 to178 L/s per m2) in accordance with current research4 recommendations. In the appendix, additional recommendations include the size and placement of an array of diffusers above the surgical table.