211–220 of 327 posts
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…
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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…
> "Don't be shy, no time for false modesty, it may cost a life." Or it may cost the rescuer quite a bit when a woman regains consciousness half-naked with a man on top of her.
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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…
> "Don't be shy, no time for false modesty, it may cost a life." Or it may cost the rescuer quite a bit when a woman regains consciousness half-naked with a man on top of her.
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…
I did some research on this: https://enki.org/2018/06/06/co2-monitoring/ I now am very conscious about keeping a door open and getting some fresh air into the room. This is a challenge in modern, well-insulated buildings in Florida in the summer.
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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 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. Any recommendations on CO2 monitors?
In evolutionary terms, you could speculate that the nice feeling of fresh air could be an instinctual response directing the organism to seek higher quality air.
Please, not the open air movement again. Edit: for the non-stewards of History that have no idea what I'm talking about: http://digg.com/video/what-was-the-open-air-movement-and-how...
That was fascinating. Little did I know the cinema is to blame for AC.
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Exhaled breath is about 3.8% or 38000ppm so (20000) that's really high! I'm not too surprised since the turnover rate through a few small holes with a relatively large volume is bad. Reducing the facial volume would help a lot as each breath would expel more CO2 as a fractional percentage. It seems that any sort of face covering or even significant exercise could raise your ambient CO2 level well above 1000ppm. I'm a…
I found the study I read, and I'll re-link it here, it is eye opening to say the least! https://www.ncbi.nlm.nih.gov/pubmed/15893291
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> "Don't be shy, no time for false modesty, it may cost a life." Or it may cost the rescuer quite a bit when a woman regains consciousness half-naked with a man on top of her.
Yeah, it's no surprise this isn't taught in the US...
I live in a badly-ventilated room in a converted loft with no windows and constantly worry about this sort of thing. Other than buying oxygen-producing plants (which tend to die on me when my back is turned) I'm not sure how to alleviate the situation.