6
CONCLUSIONS AND FUTURE WORK
PAPRs are a class of PPEs that were shown to have high
protection factors in preventing the exposure of medi-
cal personnel during the COVID‑19 pandemic. It uses a
HEPA filter to capture aerosols that could be respirable.
Figure 9. Air velocity magnitude at the five probe points
Table 7. Injected and captured mass through the PAPR
Particle
Size
Injected Mass
(kg)
Captured Mass
(kg)
Capture
Efficacy (%)
PM1 0.0065 0.0052 80.00
PM2.5 0.0065 0.0052 80.00
PM4 0.0065 0.0057 87.69
PM10 0.0065 0.0050 76.29
Figure 10. Plot of injected and escaped mass of PM1
particulates from the flow domain
Figure 11. Plot of injected and escaped mass of PM2.5
particulates from the flow domain
Figure 12. Plot of injected and escaped mass of PM4
particulates from the flow domain
Figure 13. Plot of injected and escaped mass of PM10
particulates from the flow domain