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Association Of American Physicians And Surgeons Sounds Off On Face Masks

The AAPS, a national association of doctors founded in 1943, accurately delineates the physics and dynamics of face masks. Any government official that mandates the wearing of masks to prevent the spread of COVID-19 is acting in complete defiance of proven scientific facts.

Transmission of SARS-CoV-2

Note: A COVID-19 (SARS-CoV-2) particle is 0.125 micrometers (μm); influenza virus size is 0.08 – 0.12 μm; a human hair is about 150 μm.

*1 nm = 0.001 micron; 1000 nm = 1 micron; Micrometer (μm) is the preferred name for micron (an older term)

1 meter is = 1,000,000,000 nm or 1,000,000 microns

Droplets

  • Virus is transmitted through respiratory droplets produced when an infected person coughs, sneezes or talks. Larger respiratory droplets (>5 μm) remain in the air for only a short time and travel only short distances, generally <1 meter. They fall to the ground quickly.
  • This idea guides the CDC’s advice to maintain at least a 6-foot distance.
  • Virus-laden small (<5 μm) aerosolized droplets can remain in the air for at least 3 hours and travel long distances.

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