Figure 5.

Modeling of the UV-C dosage and virus viability in different layers of the N95 mask. (A) Local UV-C dosage as a function of the relative position inside the four layers of the N95 mask. The three different curves show the local UV dosage for three cases of illumination: illumination from the inside only (orange), illumination from the outside only (green), and illumination from both sides (black) with 1000 mJ/cm² surface UV-C dosage. (B) Predicted local virus viability calculated from the local UV-C dosage distributions for the three cases. To see this figure in color, go online.