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A comment on Is Conference Room Air Making Us Dumber?. Parent comment

Re:Is Conference Room Air Making Us Dumber? by brixon on Wednesday May 08, 2019 @08:42AM (#19858257)
You don't need fresh on all the time, but for long trips I will switch to fresh for at least five minutes each hour. You just want to cycle the air in the cabin for less re-breathed air.
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Re:Is Conference Room Air Making Us Dumber? by JohnJamesRambo on Wednesday May 08, 2019 @10:26AM (#19859067)
My tests with my meter don't imply that is correct. Almost immediately on recirculate the PPM goes up and stays there.
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Re:Is Conference Room Air Making Us Dumber? by graeme on Wednesday May 08, 2019 @12:54PM (#19860725)
This is almost certainly correct. An unventilated space as small as a car will increase within 30-60 seconds, based on my testing of small indoor rooms.
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Re:Is Conference Room Air Making Us Dumber? by jtms on Wednesday May 08, 2019 @01:43PM (#19861210)
Wow I wonder if anyone has done a study on any correlation between cabin CO2 levels and driver safety?
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