this post was submitted on 05 Jun 2026
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I have a CO² sensor. When I sleep with the door shut, the CO² climbs up to and levels out at >1800 ppm.
I have a noticable headache the following day when I do this. I've tested it for nine days and now I've got a doorstop which prevents me from closing the door completely by accident or with drafts
Wow, it's 432 ppm in the air. That is a lot. You should get some house plants.
You have poor ventilation in that room. Should look to making a vent
Brew vats of algae in your room. Creates a ton of oxygen and is really easy to care for.
That's the most engineer ass answer I've ever seen.
High Co2? Algae can solve that. How much... Well a vat should do, better make it two just in case.
"Why yes, I do keep vats of algae in my bedroom why do you ask?"
It's my emotional support vat of algae. I keep it in my bed.
There was a video from a guy that tested that. It didn't go as well as he hoped.
If I am remembering the same video, he had like 4 five gallon containers. You can hardly call that a vat...
Replace your bed with a water bed, fill it with algae. Problem solved.
And you're just going to trust us to find the video ourselves?
It may be this one: https://www.youtube.com/watch?v=AAbyUaLN2QA
This one is part one: https://youtu.be/xWRkzvcb9FQ
Edit: I think I got the wrong one first. New link should be the one, but keeping the old one as it's the same topic.
Edit2: Just saw they are actually two parts that link together.
Don't worry, you got this. I believe in you.
What kind of algae? I want to grow a vat of it. Assuming it's a fresh water algae.
There was research into algae to make fuel, started during the arab oil embargo, killed off by big oil, then exxon eco opted it and made sure it went no where and finally just killed it. But the national renewable energy laboratory has a bunch of strains at cost. The best strains mysteriously disappeared from the university of hawaii that is holding them.
Get a Snake plant. They create a lot of Oxygen and easy to take care of.
You would need hundreds of houseplants to offset a single human's CO2/provide enough O2.
I'm not anti house plants, they have benefits, but a single plant will not make a meaningful oxygen difference.
Mine goes up to 2850 or so, even when I air out the room in the evening down to 430 or so.
But luckily no headache for me. I can't handle having the door open, I'm the last flatmate to get up in the morning.
That…. Should be looked at because that’s not right.
Well there is no forced air. There isn't really any variables to have anyone look at. Short of sawing a hole in a wall, door or window.
According to this calculater:
The room is about 20 m³ in volume. So in total that's 14.4 g to 108 g in a night. Ignoring any that diffuses under the door into the hallway, this would imply I breathe out 93.6 g of CO₂ in 8 h at rest.
A common number I see online for adult humans is 1kg per day. Makes sense that a significantly higher than proportional part of that is during waking hours, so I expect quit a bit less than 300g at night. Seems pretty plausible to me all-in-all.
Open the window.
Get better airflow in your room through ventilation.
Wear an o2 mask
Look for the largest air bubbles:
A mosquitoe wrote this.
That is wild.
Well there's another sensor to add to my wish list!
Although, we have a lot of HVAC flow into the bedroom so maybe the difference wouldn't be huge.