The 3 different air velocities work in synergy in order to ensure a clean air flow directed from the zone occupied by the surgical table towards the perimeter areas of the operating room to ensure maximum patient protection.
The clean air from the centre effectively protects the patients
In the are where the staff is working the air velocity is low enough to avoid discomfort.
The lowest velocity avoids any risk of contaminated air induction from the room to the clean area.