Remote Work Is Gutting Downtowns, Will Cost Cities $453B

Re:Remote Work Is Gutting Downtowns, Will Cost Cities $453B by egberts1 on Tuesday December 06, 2022 @02:41PM (#33885860)

N-95 masks are rated to capture 50 um (micrometer).

COVID-19 is 10.5 um. Water droplet to carry them just a tad bit above.

Hydrostatic testing to get that 50um in N-95 mask were based on 8.0 pH Latex hydrostatic droplets.

COVID-19 best infection spread rate is at 5.8-6.2 pH (opposite spectrum of Latex's pH).

So, more will pass thru that mask unhindered.

[ Parent | on HN ]

Re:Remote Work Is Gutting Downtowns, Will Cost Cities $453B by highwaylights on Tuesday December 06, 2022 @02:46PM (#33885959)

Not really. Due to brownian motion and diffusion the mask will catch almost all particles anyway.

The mask is rated to capture 95% of airborne particles generally, but it’s efficiency doesn’t correlate to the spacing within the filter media.

[ Parent | on HN ]

Re:Remote Work Is Gutting Downtowns, Will Cost Cities $453B by egberts1 on Tuesday December 06, 2022 @03:47PM (#33886788)

Brownian motion gets impacted if ions repels (as well as attract) at molecular and atomic level. And like pH, it has ions depending on where across the pH spectrum.

Now if they would construct a hydrostatic test using 5.8 to 6.2 pH aerosolizer, then the data becomes more robust.

[ Parent | on HN ]

Re:Remote Work Is Gutting Downtowns, Will Cost Cities $453B by MengerSponge on Tuesday December 06, 2022 @03:48PM (#33886806)

These numbers are suspect, and the conclusions are wrong. Filters don't work that way.

[ Parent | on HN ]

Re:Remote Work Is Gutting Downtowns, Will Cost Cities $453B by egberts1 on Tuesday December 06, 2022 @03:51PM (#33886846)

Pray, can you elucidate on your non-factual statements?

[ Parent | on HN ]