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Comparison of results from two bioaerosols sampling methods (a) Monthly FBCs RBMs at fine size B (<7 μm) in UVGI and non-UVGI control classrooms before the adjustment; (b) The monthly concentration of airborne culturable bacteria using Andersen impactor at the fine size (<8 μm) in the UVGI and non-UVGI control classrooms. CFU: colony forming units.
