Thread 1: https://t.co/5WN9StpFZT
Masks increase mortality because breathing through them nebulizes aerosols into smaller ones which bypass mucosal immunity & reach all the way into the alveoli, leading to acute respiratory distress syndrome (ARDS).
"Aerosols..within the most breathable size range between 0.5 & 5 Ī¼m, can carry SARS-CoV-2 deep to the terminal alveoli..if this transmission pathway does exist, it would bypass the mucociliary clearance & incubation period of the virus in the upper airways
https://t.co/vjcinmtiHT
The filtration material itself of N95's average pore size ~0.3āˆ’0.5 Ī¼m does not block finer aerosol laden with virions penetration, not to mention surgical masks.
THE NOSE: "Particles larger than 3Ī¼m have a maximum deposition in the anterior part of the nose (nasal valve). Particles smaller than 3Ī¼m & larger than 0.5Ī¼m are filtered by the nasal mucosa and transported by cilia propulsion to the nasopharynx."
THE N95 MASK: The filtration material itself of N95's average pore size ~0.3āˆ’0.5 Ī¼m [larger average pore size is just like the human NOSE] does not block finer aerosol laden with virions penetration, not to mention surgical masks. For example, see Balazy et al. (2006).
THE NOSE is as good a filter as an N95 mask given the many pores which are equal in size to the filtration capacity of the nose of 0.5Ī¼m. HOWEVER breathing mouth to mask NEBULIZES aerosols making them more infectious to other people's lung alveoli.
https://t.co/oIf7N6f9Yz
There are in fact products that nebulize in order to get smaller aerosols into the lungs: https://t.co/JDGcoNJjZN
How masks nebulize: https://t.co/vccxMx3AQr
Masks may increase mortality because breathing through them can nebulize aerosols into smaller ones which bypass mucosal immunity & reach all the way into the alveoli, leading to acute respiratory distress syndrome (ARDS)
https://t.co/vjcinmtiHT
ARDS is a Covod19 mortality route https://t.co/GuE9QAeqDF
Thread 2: https://t.co/sMFPnrlON3
Conclusion: you want to keep the aerosols as BIG as possible. Masks nebulize them as they squeeze them through a filter. Best public health option is no masks & breathe through nose https://t.co/xXRUnRAR1l

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