Table 2.
Instruments used in the experiment.
| Measurement | Measuring instrument | Accuracy | Logging interval |
|---|---|---|---|
| Air velocity | SENSOR, HT 400 | ±0.03 m/s | 2 s |
| Particle | TSI, Aerotrak 8220 | counting efficiency: 100% ± 10% @ 0.45 μm and greater | 10 s |
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