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  1. Feb 15, 2021 · Upon analysis of negative-stained SARS-CoV-2 articles by electron microscopy, different researchers have had varying results, but the diameter of the virus has been found to range between...

  2. Apr 2, 2020 · SARS-CoV-2 is an enveloped virus ≈0.1 μm in diameter, so N95 masks are capable of filtering most free virions, but they do more than that. How so? Viruses are often transmitted through respiratory droplets produced by coughing and sneezing.

    • Yinon M. Bar-On, Avi I. Flamholz, Rob Phillips, Ron Milo
    • 10.7554/eLife.57309
    • 2020
    • eLife. 2020; 9: e57309.
  3. Sep 23, 2020 · The size of SARS-CoV-2 ranges from 0.07 μm to 0.09 μm [23,24]. The following calculations of the minimum sizes of particles containing SARS-CoV-2 are based on the assumption of a homogeneous distribution of viruses inside respiratory fluid particles, with a maximum size of 0.09 μm (sphere, d virus) for SARS-CoV-2. In addition, a spherical ...

    • Byung Uk Lee
    • 10.3390/ijerph17196960
    • 2020
    • 2020/10
  4. Mar 31, 2020 · SARS-CoV-2 is an enveloped virus ≈0.1 μm in diameter, so N95 masks are capable of filtering most free virions, but they do more than that. How so? Viruses are often transmitted through respiratory droplets produced by coughing and sneezing.

  5. Apr 6, 2020 · So the coronavirus is about 0.12 microns in diameter and N95 (masks) protect down to 0.1 microns, with 95% efficiency, which is where it gets its name. We don't want the public to think that the recommendation is for medical masking.

  6. Jun 12, 2020 · “COVID 19 virus particle size is 125 nanometers (0.125 microns); the range is 0.06 microns to .14 microns,” the post said. “The N95 mask filters down to 0.3 microns. So, N95 masks block...

    • Eric Litke
    • Senior Editor/Fact Check
  7. Oct 6, 2020 · Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly transmissible and pathogenic coronavirus that emerged in late 2019 and has caused a pandemic of acute respiratory disease ...

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