Figure 4
From: Mapping of UV-C dose and SARS-CoV-2 viral inactivation across N95 respirators during decontamination
Optical simulation and PCIs identify paired measurement sites receiving equivalent UV-C dose within locations on N95 facepieces receiving a wide range of UV-C doses for paired dose and viral inactivation measurements. (A) Optical simulation of UV-C dose distribution over two 3M 1860 N95 facepieces in the UV-C chamber, overlaid with PCIs at paired measurement sites for viral inactivation and dose measurement. Heatmap shows simulated UV-C dose (normalized to the maximum dose in the chamber). PCI fill color represents the mean dose measured with PCIs in situ across triplicate measurements. (B) Comparison of dose differences within paired measurement sites. Data are colored by on-N95 location. Horizontal error bars on measured values represent the 95% confidence interval in estimated dose (Note S1).
