i clicked you link... looked at the citation...
they are measurements of whether masks can block some particles.
They are not about the real world of Covid transmission.
No evidence that supported your claim about Covid transmission.
Which was ridiculous.
here is the real world problem which shows how simplistic your thoughts were.
(an notice we did not discuss the dirty mask problem at all)
"Surgical masks and the tested hand-made masks were found to limit the forward flow of expelled breath, but also generate far-reaching leakage jets to the side, behind, above and below. Heavy breathing and coughing, in particular, were shown to generate intense backward jets."
they are measurements of whether masks can block some particles.
They are not about the real world of Covid transmission.
No evidence that supported your claim about Covid transmission.
Which was ridiculous.
here is the real world problem which shows how simplistic your thoughts were.
(an notice we did not discuss the dirty mask problem at all)
"Surgical masks and the tested hand-made masks were found to limit the forward flow of expelled breath, but also generate far-reaching leakage jets to the side, behind, above and below. Heavy breathing and coughing, in particular, were shown to generate intense backward jets."
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