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. Author manuscript; available in PMC: 2026 May 5.
Published in final edited form as: ACS EST Air. 2025 Mar 14;2(3):368–377. doi: 10.1021/acsestair.4c00247

Table 2.

Clean Air Delivery Ratesa Calculated for Particles Measured by Either the APS or SMPS over Different Test Time Periods for Both the Far-UVC and HEPA Device Testsb When Aerosolized in Simulated Saliva (SS) or Deionized (DI) Water

APS CADR, CFM
SMPS CADR, CFM
Far-UVC
HEPA
Far-UVC
HEPA
Time (min) DI SS DI SS DI SS DI SS
 0–30 4 ± 1 3 ± 2 206 ± 1 188 ± 1 0 ± 2 16 ± 4 195 ± 3 194 ± 4
 0–60 2 ± 0 2 ± 1 190 ± 2 184 ± 2 1 ± 2 9 ± 3 183 ± 5 183 ± 4
 0–90 2 ± 0 2 ± 1 161 ± 4 164 ± 3 0 ± 2 6 ± 3 157 ± 7 162 ± 6
 15–90 0 ± 1 1 ± 1 143 ± 4 155 ± 3 1 ± 1 0 ± 2 144 ± 8 149 ± 6
 30–90 1 ± 0 1 ± 0 118 ± 4 139 ± 3 0 ± 1 1 ± 1 123 ± 8 133 ± 7
a

CADRs, ± standard deviation.38

b

With two of each device used for each of the respective test types.