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. 2021 May 12;200:107956. doi: 10.1016/j.buildenv.2021.107956

Table 4.

Comparisons of ESD and HEPA based on energy consumption and ozone generation, from the perspectives of airborne disinfection.

Device Type ESD (6.5 kV) ESD (8.5 kV) HEPA
Energy Consumption (W) 3.4 109.2 343
Ozone generation (ppb) 8 14 0
Disinfection efficiency (%) >96.7% >99.9% 0
PM removal efficiency (%) <10% <10% >99.9%