Fig. 1. A layout of the test house showing the sampling points and the location of an air purifier.
Fig. 2. The time-series of the interior and exterior PM10 during the experimental period.
Fig. 3. The time-series of the interior and exterior PM10-2.5 during the experimental period
Fig. 4. The time-series of the interior and exterior PM2.5 during the experimental period
Fig. 5. Indoor-outdoor ratio (I/O ratio) of the PM2.5 and the PM10-2.5 corresponding to wind speed without an indoor activity by the residents (a) and with one (b).
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