Re: [115attendees] My CO2 complete measurement sets so far

[Alexandre Petrescu <[e-mail]>]

Le 10/11/2022 à 18:01, Wes Hardaker a écrit :
> Alexandre Petrescu <[e-mail]> writes:
> 
> [...]
>> but there are also publications telling that in some cases that might
>> get things worse, depending on where the path that air takes between
>> various rooms.
> 
> I wondered about that too, and I suspect it's very hotel dependent.  I
> went looking to see if hilton has a air filtration policy [0] but didn't
> see anything relevant.
> 
> [0] https://www.hilton.com/en/p/what-to-expect/learn-more/?cid=OH,MB,WTEPageCSLearnMore,MULTIPR,Tile,AboutUs,SingleLink,i84209

Yes the idea of filters makes sense.

The CO2 measurement is one way of associating to the risk of covid 
transmission (more CO2 means presumably more breath was in that space). 
The CO2 itself can not be filtered but covid air can.

Also, there are other associations, like measuring the smell.  Many CO2 
instruments also measure what is called VOC (volatile compound, not 
variant-of-concern) which has a relationship to smell.

Some type of smell might be associated to covid virus, in a same 
proportionality manner.

In this paper at science.org the question is raised in the URL too 
https://www.science.org/content/article/can-you-catch-covid-19-your-neighbor-s-toilet

The paper gives examples of propagation, potentially through aerations, 
in multi-storey buildings.

One advice burried deep in that paper is also this "regularly running 
water in tubs and sinks", which goes somehow against the advice of 
'toilettes sèches' ('dry toilets'?) which are extensively used at the 
current COP2x conference of the parties, apparently.

Alex