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Table 1 Mean values of volumetric bacteria-carrying particles for different centerline velocity of the mobile laminar screen unit

From: Does a mobile laminar airflow screen reduce bacterial contamination in the operating room? A numerical study using computational fluid dynamics technique

MLAF screen velocity Operating table Instrument table one Instrument table two
CFU/m3 CFU/m3 CFU/m3
(m/s) Mean (min–max) Mean (min–max) Mean (min–max)
off 19.08 (9–32) 18.12 (13–28) 7.66 (5–24)
0.2 9.94 (4–12) 8.36 (3–13) 1.82 (1–4)
0.4 1.21 (1–4) 1.14 (0–5) 0.90 (0–3)
0.6 0.72 (0–3) 0.08 (0–1) 0.08 (0–1)
0.8 0.04 (0–1) 0.06 (0–1) 0.00 (0–0)
1.0 0.00 (0–0) 0.00 (0–0) 0.00 (0–0)
  1. CFD simulation results were based on active air-sampling method. (CFU: colony-forming unit, MLAF: mobile laminar airflow).