Is Conference Room Air Making Us Dumber?

Post by sigwinch28 » Wed, May 08, 2019, 7:13 PM UTC

wlll wrote: post #94

mrfusion wrote: post #7

What if all of humanity’s bad decisions are caused by this? Imagine if we started holding board meetings, etc outdoors and we fixed all our problems. Maybe an idea for a book?

Also, it's a great way to make sure meetings don't go on too long, hold them in the rain :)

Post by pryelluw » Wed, May 08, 2019, 7:19 PM UTC

Mistletoe wrote: post #5

I own a CO2 monitor and it is shocking how high it can get in a house with two people just existing. 800 ppm or more. Outside air is 410. In a car with air on recirculate, it was getting to >1220 ppm, a level that impairs decision making and lowers brain function. I try to drive with air on fresh from now on. I don’t doubt the air in our conference room with 20 people gets super high in CO2 as the meeting goes on, an…

Post by aidenn0 » Wed, May 08, 2019, 7:27 PM UTC

jimmaswell wrote: post #201

dredmorbius wrote: post #53

Earlier quoted context omitted.

Generally, use recirc only briefly when driving through heavy exhaust, smoke, dust, chemicals, smells. Return to fresh air once you've cleared that. Some sources suggest recirc for heavy traffic -- I'd prefer a good filtration system. And for rapidly heating or cooling a car, recirc can help. My preference is to open windows & sunroof (where present) to flush out hot air first, in hot weather. In cold weather, the he…

Fresh just doesn't work well enough compared to recirculated for me. If the car isn't getting cold enough, recirculation being off is always the culprit. I've questioned why fresh is even there (seems unlikely co2 would be the reason) - it's always going to be less efficient and you can open a window if you want fresh air. Anecdotally I feel fine driving for 2 hours straight in recirculated air with closed windows.

Post by c0vfefe » Wed, May 08, 2019, 7:42 PM UTC

rndgermandude wrote: post #199

GuiA wrote: post #131

Earlier quoted context omitted.

It’s interesting to see how differently first aid is taught across countries. Eg the last training I did in the US (California), I was surprised by two things that I had not encountered when I was trained in France: - a big concern around pathogens - always have gloves with you and put them on when administering first aid especially if the person is bleeding; use a mouth dam for mouth to mouth and if you don’t have o…

The most surprising things I was taught when taking classes in Germany (which went beyond the mandatory classes you have to take to get a driver's license) are the following. Well, not really surprising once you think about it... - Mouth-to-nose is usually better than mouth-to-mouth, at least when there is no obstructions (like bleeding, broken nose, snot, etc). - If you're doing chest compressions, expect a high pro…

Post by colechristensen » Wed, May 08, 2019, 7:52 PM UTC

castratikron wrote: post #111

Klathmon wrote: post #19

Earlier quoted context omitted.

I picked up a CO2 monitor a while ago myself, and the biggest surprise was having it on in the morning in our bedroom with the doors closed. It was easily over 1000ppm IIRC. Ever since then I've made sure to set my AC system to run the "house fan" for 15 minutes or so every hour at night just to circulate the air in the house, and while the numbers went down significantly, anecdotally I swear that I wake up easier in…

I monitored the CO2 in my bedroom every second for three months and I found results similar to you. If I was sitting right next to the sensor in the evening it would go up to about 1900 ppm. Cracking open the window for an hour or so eventually brought things down to the 500ppm range. What was interesting is how fast the ppm increases when someone enters the room. I would plot the data and see a blip on the graph whe…