Single-pass filtration efficiency :     [99%, 100%],   [95%, 99%),   [90%, 95%),   [70%, 90%),  < 70%
Error bar :     [0%, 1%],      (1%, 5%],      >  5%

For more information about the mask, click on the mask name
SARS-CoV-2 aerosols were mainly found to include two size ranges: 0.25μm ~ 1.0μm and > 2.5μm (Liu, Y., Ning, Z., Chen, Y. et al. Nature 2020).
Therefore, the filtration efficiency for particles with these size ranges should be mainly considered.

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particles
Mask
Type
Mask
Name
Single-pass filtration efficiency Error bar ΔP (pa) vair (m/s) T (°C) RH (%) Testing date (YYYY.MM.DD) City Name
0.3μm 0.5μm 1μm 3μm 5μm 10μm 0.3μm 0.5μm 1μm 3μm 5μm 10μm