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50% humidity level appears to be 'sweet spot' for minimizing spread of Covid indoors

Joined
Mar 17, 2013
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Based on "research" that has been in media.. for those who don't see it as a gummit (not Trump gummit, some other supreme gummit) pushed conpsiracy or just want to be on safer side:

csm_SF_Blog_Coronavirus_grafic_surfaces_EN_16d0e67f20.jpg



Results


  • The greatest level of virus inactivation took place at 50%RH.

  • The lowest level of virus inactivation took place at 20%RH.

  • Inactivation was more rapid at 20°C than at 4°C at all humidity levels.

  • Both viruses were inactivated more rapidly at 40°C than at 20°C.

  • The relationship between inactivation and RH was not monotonic, and there was greater survival or a greater protective effect at low RH (20%) and high RH (80%) than at moderate RH (50%).

  • Infectious virus deposited on stainless steel surfaces persisted for at least 3 days at 50%RH (20°C) and for up to 28 days at 20%RH (-2 log[SUB]10[/SUB]).
The study suggests that the animal coronaviruses studied (TGEV and MHV) could serve as conservative surrogates for modelling exposure, transmission risk, and control measures for human pathogenic viruses, such as SARS-CoV and other coronaviruses.

https://www.condair.co.uk/humidity-...-humidity-on-coronavirus-survival-on-surfaces

Some experts have pointed out that these lab virus survival timespan stats are not applicable in most real life scenarious where virus would be less likely to survive as long.
 
I doubt there really is such a thing as a sweet spot when it comes to coronavirus.
 
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I like 60 percent humidity in winter and as little as possible in summer .
 
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