Figure 1.
Airborne sampling experimental set-up (Hong Kong experiments), showing: A and B.
Design of the mouthpiece with PTFE filter (‘filter’) in place. C and D. Installation of the SKC BioSampler, with the mouthpiece, in the manikin.
Figure 2.
Singapore experimental set-up, showing:
Swabbing sites for the manikins’ face (A) for influenza testing. Shadowgraph images of far- (B) and near- cough (C) distances (see accompanying online Video S1 for further details of these shadowgraph images).
Figure 3.
Example of cough shadowgraph image showing the dispersal of the exhaled puff.
Parameters that affect the dispersal of this exhaled airflow include the mouth-opening diameter (), propagation distance (x), and spreading angle (
) (see accompanying online Video S1 for further details of these shadowgraph images).
Table 1.
Results for the Hong Kong experiments (n = 9).
Table 2.
Results for Singaporean experiments (n = 6).