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On whether changes in bedroom CO2 levels affect sleep quality

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Re: On whether changes in bedroom CO2 levels affect sleep quality

#221

Post by pizza »

chronic739 wrote: post #211
dTal wrote: post #143

Earlier quoted context omitted.

We're on track to reach 1000ppm by the end of the century, if levels continue to rise at their present (accelerating) rate. This is about the threshold where cognitive effects become reliably detectable. However, such levels also bring climate change on such an apocalyptic scale (4.5+ degree temperature rise) that industrial activity could well wind down as society collapses.

> We're on track to reach 1000ppm by the end of the century Probably won't be in my lifetime. Not my problem.

Probably still going to be your family's problem..

Re: On whether changes in bedroom CO2 levels affect sleep quality

#222

Post by sinuhe69 »

manmal wrote: post #48

FWIW, I have almost no dream recall, and am not as rested, when the window is sealed shut. We are four humans and two cats (usually) in a small-ish bedroom, creating a lot of co2. There is built-in ventilation in each room, but performance starts declining 2 weeks after every filter change (which cost €20). So I swap the filter only once every 1-2 months, and instead open the window ever so slightly (moving the lever…

I live in a tropical country and I always prefer to sleep with open Windows. The only problem is the noise. I believe noise affects the sleep quality as much as well. Earplugs might be a solution but I don’t know any good brand which are comfortable enough for long time carrying.

Re: On whether changes in bedroom CO2 levels affect sleep quality

#223

Post by jjeaff »

dcbadacd wrote: post #173
valtism wrote: post #168

Earlier quoted context omitted.

Maybe this is why I would feel sleepy during lectures. I always thought it was because I was mismanaging my sleep or the teacher was boring (it was probably a combination of the three).

This might also be the reason individual and small-group learning is more effective - there's less CO2.

Wouldn't that be a wacky turn of events, for all those studies showing that smaller class sizes produced better outcomes, to end up being mostly attributed to lower co2 levels in smaller groups.

Re: On whether changes in bedroom CO2 levels affect sleep quality

#224

Post by hnick »

clairity wrote: post #142
thatcat wrote: post #137

Earlier quoted context omitted.

You mean plants?

ha, i actually bought a bunch of plants from the nasa list a year-ish ago to help reduce co2 & voc levels: https://www.healthyandnaturalworld.com/best-air-filtering-ho...

Did you notice a difference? We have a small office with two people, multiple PCs, printer, etc. It gets warm and stuffy regardless of the season and climate control, and I have trouble focusing especially in the afternoon.

I'm thinking of picking up a plant or two and pointing a fan at the door to send out some of the stale air.

Re: On whether changes in bedroom CO2 levels affect sleep quality

#225

Post by [deleted] »

chronic739 wrote: post #211
dTal wrote: post #143

Earlier quoted context omitted.

We're on track to reach 1000ppm by the end of the century, if levels continue to rise at their present (accelerating) rate. This is about the threshold where cognitive effects become reliably detectable. However, such levels also bring climate change on such an apocalyptic scale (4.5+ degree temperature rise) that industrial activity could well wind down as society collapses.

> We're on track to reach 1000ppm by the end of the century Probably won't be in my lifetime. Not my problem.

[deleted]

Re: On whether changes in bedroom CO2 levels affect sleep quality

#226

Post by dwaltrip »

chronic739 wrote: post #211
dTal wrote: post #143

Earlier quoted context omitted.

We're on track to reach 1000ppm by the end of the century, if levels continue to rise at their present (accelerating) rate. This is about the threshold where cognitive effects become reliably detectable. However, such levels also bring climate change on such an apocalyptic scale (4.5+ degree temperature rise) that industrial activity could well wind down as society collapses.

> We're on track to reach 1000ppm by the end of the century Probably won't be in my lifetime. Not my problem.

That's an attitude that we can all apsire to.

Re: On whether changes in bedroom CO2 levels affect sleep quality

#227

Post by gsich »

kickout wrote: post #34
DocG wrote: post #29

I was lucky to get my hands on 5 proper co2 sensors from university, while I was teaching and working. So plenty of test places. What I found: -Just a couple of hours in a office, without ventilation spikes the co2 enough to make everyone dizzy and tired by the end of the day. Keeping eye on the meter and ventilating properly, increased everyones productivity and people werent so tired by the end of the day. - Classr…

Curious if you have a link to what sensors you had? Think this is cool and i've been on/off looking for co2/o2 sensors greater than recreational precision

Try MH-Z14 or Z19.

Re: On whether changes in bedroom CO2 levels affect sleep quality

#228

Post by stale2002 »

dTal wrote: post #143
scottdupoy wrote: post #123

Earlier quoted context omitted.

Are atmospheric CO2 levels rising to an extent that currently projected levels would have a noticeable effect in the same way?

We're on track to reach 1000ppm by the end of the century, if levels continue to rise at their present (accelerating) rate. This is about the threshold where cognitive effects become reliably detectable. However, such levels also bring climate change on such an apocalyptic scale (4.5+ degree temperature rise) that industrial activity could well wind down as society collapses.

This is absolutely not true.

The predicted number is much closer to around 650 ppm, and that's assuming no change.

In reality, things like solar technology have massively gone down in price over the last couple decades, and are only continuing to reduce in price.

We will likely see 2-3 degrees of warming, but no credible scientist is making the predictions that you seem to be making.

Re: On whether changes in bedroom CO2 levels affect sleep quality

#229

Post by gsich »

bizzleDawg wrote: post #16

I've worked on environmental sensing iot projects and have seen the cost of co2 sensors. Almost all the cheap ones are VOC sensors which infer a co2 level by assuming the VOC output is from humans (rather than paint for example). Given the cost of the device I would be amazed if it wasn't a VOC based sensor. The cheapest CO2 sensors I've seen are well over $250, even in bulk. CO2 is quite innert, so it requires very…

MH-Z14 or Z19 are cheaper, around 25€. With optical measurement. I have a few of them, they seem accurate enough. I calibrate them every 6 months by placing them outdoors.

Re: On whether changes in bedroom CO2 levels affect sleep quality

#230

Post by gsich »

forthispurpose wrote: post #57
bizzleDawg wrote: post #16

I've worked on environmental sensing iot projects and have seen the cost of co2 sensors. Almost all the cheap ones are VOC sensors which infer a co2 level by assuming the VOC output is from humans (rather than paint for example). Given the cost of the device I would be amazed if it wasn't a VOC based sensor. The cheapest CO2 sensors I've seen are well over $250, even in bulk. CO2 is quite innert, so it requires very…

Can you recommend the lowest cost CO2 sensor that one can buy that would give reliable readings?

MH-Z14
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