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Table 2 Mean values of CFU/m 3 air during three operations in operating room 2 when all persons present were dressed in a surgical clothing system of mixed material (69% cotton, 30% polyester, 1% carbon fibre) which was washed repeatedly

From: Comparison of three distinct surgical clothing systems for protection from air-borne bacteria: A prospective observational study

Type of surgery Clothing Number of persons present CFU/m3 airmean (min-max)
Wrist Mixed material, washed 5 41.3 (9–65)
Hamstring muscle Mixed material, washed 7 24.0 (17–38)
Shoulder Mixed material, washed 7 31.0 (11–45)