A HEAD-AND-FACE ANTHROPOMETRIC SURVEY - The National ...

Figure 15 shows the revised test panel for a full-face respirator. For the 25 individuals,
males and females were distributed among the cells in approximate proportion to their
anthropometric distribution with two exceptions: 1) males and females were represented
approximately equally (13 males; 12 females); and 2) no cell was permitted to have only
one inhabitant. Note that the revised test panel accommodates 96.2% of the current
population. Figure 16 shows the revised test panel overlaid on the current population
distribution. The older test panel is indicated for comparison. Figure 17 shows the
population percentages in each of the test panel cells.
We repeated the procedures for a half-mask, and Figure 18 shows the resulting test
panel. Figure 19 indicates the half-mask panel overlaid on the population distribution
where it accommodates 97.2% of the population. The older test panel is illustrated for
comparison. Finally, Figure 20 shows the percent of population that would fall in each
cell for the half-mask panel.
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