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On whether changes in bedroom CO2 levels affect sleep quality

gwern.net

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

#311
post #220

Earlier quoted context omitted.

What i found is that i can open a window to bring fresh air in but togather with it magnitude of pollution that causes cancer and asthma... Not a great choice if you ask me.

Move out of Beijing right now. Or out of Hebei province, or faraway from North Henan Province. Just move as sson as possible to a place with good air. It does't not worth the money to live in Beijing, no matter how rich you can get there, and you can get rich there, but it simply does not worth. Your life is more important, specially if you have kids.

I live in Poland and we are the lungs of Europe, still air is polluted as hell.. i dont wanna think how bad it is in other countries. And its not so easy to move out if you dont have enough of money.

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

#312
post #52

Earlier quoted context omitted.

That would be a worthy HN post.

Is that something HN is interested in? I do work and research with remote environmental monitoring stations and am always comparing sensors. Currently doing a precipitation gauge intercomparison study.

Please do! I just bought a couple of cheap co2 sensors on Amazon (2k positive reviews) only to find out that they may not be accurate.

It would be amazing if you or anyone really could make a comparison between different models - and show whether the cheap ones on amazon and the likes are worth it.

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

#315

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…

Thanks. I was about to get a cheap one on Amazon :D

Sort of related, I'm living in a newly constructed house and I'm interested to know the indoor air quality. Any recommendation for a comprehensive in door air quality test solution (either device(s) or hire someone maybe)?

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

#316
post #311

Earlier quoted context omitted.

Move out of Beijing right now. Or out of Hebei province, or faraway from North Henan Province. Just move as sson as possible to a place with good air. It does't not worth the money to live in Beijing, no matter how rich you can get there, and you can get rich there, but it simply does not worth. Your life is more important, specially if you have kids.

I live in Poland and we are the lungs of Europe, still air is polluted as hell.. i dont wanna think how bad it is in other countries. And its not so easy to move out if you dont have enough of money.

Yes, you are right. Not easy.

But I am happy to know that Poland's air still can breath, at least, compared to India or China.

I have been in Szczecin‎ city once, and I love Poland, and I specially love the Polish people.

Wish all good for you guys over there, and that the air gets better in the future, we need to hope.

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

#317
post #257

Earlier quoted context omitted.

Don't know if above is getting downvoted by the the rightists or by the leftists here, what is fun. But probably getting d.v. because of being too caustic, too snarky and too ironic, what is not fun and I confess I deserve. And, most important off all, I am getting downvoted for being Not polite to xeromal, and I apologise to xeromal for this. My comment sounded like he was being discriminative or something like that…

Hi, I didn't downvote you, but hopefully I can shed some light on why other's did. This is a conversation about the levels of CO2 and how it effects a person, especially their sleep. In this part of the conversation people have started to talk about how the temperature also effects your sleep. This was a natural progression, as less CO2 needs more ventilation, and brings with it colder temperatures. You then started…

Thank you Balero, I hear your words.

Only see this your comment now, long time after.

But Thank You for taking your time to help me seeing those things, really.

Cheers and wish you all the good in the universe!

Thank you!

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

#318
post #272

Earlier quoted context omitted.

Do you have some followup sources for these fairly strong claims?

https://scholar.google.co.uk/scholar?hl=en&as_sdt=0%2C5&q=sl... Most of the claims are trivially verified true with a proper understanding of hypoxia and the effects on the brain. Of course you want to be sleepy, but you don't want that sleepiness to be due to hypoxia because hypoxia is known to damage the brain.

Hypoxia is about oxygen levels, not CO2 levels. Those are definitely related, but not at all the same.

The link you gave makes me think I actually have to dig through quite a few studies to find something supporting what you said (it's not on the first page, for anyone wondering), which is why I asked for direct sources.

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

#319
post #272

Earlier quoted context omitted.

https://scholar.google.co.uk/scholar?hl=en&as_sdt=0%2C5&q=sl... Most of the claims are trivially verified true with a proper understanding of hypoxia and the effects on the brain. Of course you want to be sleepy, but you don't want that sleepiness to be due to hypoxia because hypoxia is known to damage the brain.

Hypoxia is about oxygen levels, not CO2 levels. Those are definitely related, but not at all the same. The link you gave makes me think I actually have to dig through quite a few studies to find something supporting what you said (it's not on the first page, for anyone wondering), which is why I asked for direct sources.

> to find something supporting what you said read the username, I am not OP, and did not make the claim.

A simple search of "hypoxia from excess CO2" brought up https://en.wikipedia.org/wiki/Hypercapnia, which also support the claims.

Please, for the love of god, learn to google properly: http://www.catb.org/esr/faqs/smart-questions.html

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

#320
post #199

Earlier quoted context omitted.

These require a ducting system, correct?

Not necessarily. There're units that are installed in, basically, hole in the wall. This makes them very attractive for older renovated building, which used to rely on drafts for air circulation.

There was a link in the comments on this site awhile back from a company that made on similar to an AC window unit, and it had an optional active HEPA filter add-on, whick looked similair to a portable ducted AC.

Also, Panasonic makes a bathroom fan ERV for about $400, which you can find on Amazon, with two ducts, one for fresh air intake, and the other to vent the stale air, and you need to have the intake and exhaust ideally on opposite sides of the structure.

Some people use it for their basement humidity levels. It is much less expensive to run than a dehumidifier.

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