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. 2007 Feb 9;73(7):2165–2172. doi: 10.1128/AEM.02289-06

TABLE 2.

Spore reaerosolization from steel and plastic surfaces after five air-volume exchanges

Duct material Initial spore deposition source (CFU/cm2) Redeposited spores (CFU/cm2) Normalized reaerosolizationa (%)
Steel 2.82 × 105 1.43 × 103 0.51
Steel 2.27 × 105 1.93 × 103 0.85
Steel 4.31 × 105 5.25 × 103 1.22
Steel 4.31 × 105 1.68 × 103 0.39
Plastic 2.30 × 104 1.72 × 102 0.75
a

Average value was 0.74.