I think most of the cognitive effect that op is talking about is due to high CO2 conc and an air purifier is not going to have very much affect on CO2 levels because HEPA filters can’t filter CO2 out of the air like they can for impurities.
In that case what would a person do with the information from a monitor? The only suggestion from the post that seems specific to having a monitor is “stop working and take a walk when CO2 is high”, which is only useful if CO2 is generally low (if CO2 is perpetually high you can’t avoid working during that time).
I think most of the cognitive effect that op is talking about is due to high CO2 conc and an air purifier is not going to have very much affect on CO2 levels because HEPA filters can’t filter CO2 out of the air like they can for impurities.
In that case what would a person do with the information from a monitor? The only suggestion from the post that seems specific to having a monitor is “stop working and take a walk when CO2 is high”, which is only useful if CO2 is generally low (if CO2 is perpetually high you can’t avoid working during that time).
Open doors, windows, consider working/sleeping somewhere else, turn on a fan etc.