Figure 2
From: Spatiotemporal droplet dispersion measurements demonstrate face masks reduce risks from singing
Panel (A): Representative images showing time vector plots of droplets being produced. Colours show velocity and arrows show direction of movement of each individual droplet. These images are taken from 500 and 1200 ms after one of the participants sang the note ‘la’. These data were analysed to create the graphs in panel (B). A full video sequence is available as Supplementary Video 1. (B) Representative time resolved transmission of droplets. There was no consistent pattern for numbers of droplets produced across the various tasks. Leakage through the mask occurred almost exclusively during exhaling. Otherwise, virtually no droplets were transmitted for any task when wearing masks. Figures produced in R software 4.0.434 using the ggplot2 package35.
