Fig. 16.

Mask filter-Docc correlation for all the pairs related to dI ≤ 5% depending on the initial infector percentages classes: a) from 1.40% to 3.00%; b) from 3.00% to 5.00%; c) over 5.00% to maximum value (10.00%). Regression curves for each correlation are shown by the red lines (form: ax^b + c; regression data in Table 3). The pairs’ colour is related to the mask wearing % (colour bar on the top) while the dot size depends on the initial infector % value (circles inside the legend on the bottom). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)