Existence of a Nonzero Worst-Case ACH for Short-Term Exposure in Ventilated Indoor Spaces

Figure 5

Experimental confirmation of the theoretical finding. (a) Schematic of the experimental setup. (b) Plan view of the experimental setup. (c) Time history of normalized quanta measured at the sensor for three different ACH values. (d) Time-integrated cumulative normalized quanta at the sensor as a function ACH. Integrated value for both 5 and 15 min shows a distinct peak identifying the worst-case ACH. The error bars indicate a one-sigma variation obtained from several repetitions of the experiments.

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