3 ms·

note that the effects of periodically higher co2 concentrations on overall health is inconclusive at best (life evolved with significant co2 around). particulat

note that the effects of periodically higher co2 concentrations on overall health is inconclusive at best (life evolved with significant co2 around). particulate matter and atmospheric pollutants (like voc’s), however, are most assuredly detrimental to our health, so it makes sense to act mainly on the latter (with air filters/purifiers) over the former.

colechristensen 6y ago
I've worked in offices where the CO2 levels regularly spiked to levels not seen since... pants first started colonizing the land. It's been, what, 30? 50? million years since atmospheric CO2 levels matched current outdoor levels, much less what happens inside.
- thrwaeasddsaf 6y ago
  What kind of pants are best for removing CO2?
  - colechristensen 6y ago
    The kind with lots of chlorophyll... all the rage with the kids these days (sigh... plants... plants)
- clairity 6y ago
  the point is that humans (and life in general) have entirely evolved with varying levels of co2, so the excess levels found in a fairly closed room is unlikely to be a really serious risk (vs. a sealed room with much higher concentrations, where it's obviously a serious asphyxiation risk). this risk, according to research, is currently inconclusive at best. the concentrations and types of particulate matter, however, is unprecedented, and as such, presents a higher inate risk, something that scientific research is really only starting to grapple with but so far is showing to be likely a serious risk to many (most?) species on earth. with that said, i'm not trying to discourage your project in any way, just saying that for most people, addressing particulate (plus voc) risk is likely going to be the overwhelming majority of the benefits to be found in relation to indoor air quality. reducing co2 could be worthwhile if you have an especially airtight room/house, but nearly no houses are that airtight (passiv houses are meant to be so, however).

colechristensen 6y ago

I've worked in offices where the CO2 levels regularly spiked to levels not seen since... pants first started colonizing the land. It's been, what, 30? 50? million years since atmospheric CO2 levels matched current outdoor levels, much less what happens inside.

thrwaeasddsaf 6y ago
What kind of pants are best for removing CO2?
- colechristensen 6y ago
  The kind with lots of chlorophyll... all the rage with the kids these days (sigh... plants... plants)
clairity 6y ago
the point is that humans (and life in general) have entirely evolved with varying levels of co2, so the excess levels found in a fairly closed room is unlikely to be a really serious risk (vs. a sealed room with much higher concentrations, where it's obviously a serious asphyxiation risk). this risk, according to research, is currently inconclusive at best. the concentrations and types of particulate matter, however, is unprecedented, and as such, presents a higher inate risk, something that scientific research is really only starting to grapple with but so far is showing to be likely a serious risk to many (most?) species on earth. with that said, i'm not trying to discourage your project in any way, just saying that for most people, addressing particulate (plus voc) risk is likely going to be the overwhelming majority of the benefits to be found in relation to indoor air quality. reducing co2 could be worthwhile if you have an especially airtight room/house, but nearly no houses are that airtight (passiv houses are meant to be so, however).