4 ms·

I would hate to have a machine in my bedroom that is capable of raising the CO2 level. I don't think anyone could convince me that it would not decide to suffoc

by avian 4y ago

I would hate to have a machine in my bedroom that is capable of raising the CO2 level. I don't think anyone could convince me that it would not decide to suffocate me at midnight next 29th February or something, regardless of its safety features.

MobiusHorizons 4y ago
I think the general idea would be to have a device that typically reduces co2 level through ventilation, and just turn it off at night. That would let your normal breathing add the co2.
- lucb1e 4y ago
  I wouldn't like to take hours for my sleep aid to kick in, if I would need such a thing. Instead of the room, maybe a little device called blanket could be used, but I don't know how reliably people get out from under that if they get in the habit of associating under blanket = sleep = good, because it certainly wouldn't be good to be under that all night.
  - cobertos 4y ago
    Might help to have it on a schedule, like a thermostat has, or maybe more advanced like Nest does. Then it kind of tapers you into a sleep schedule. Wouldn't work if coming back from a late night out though
dzhiurgis 4y ago
Normally your reflexes kick in when you start suffocating from co2. Nitrogen tho… I wonder if sleepiness is some sort of evolutionary reflex or actually caused by co2 in body.
lucb1e 4y ago
> a machine in my bedroom that is capable of raising the CO2 level. It doesn't have to be so complex. It could be as simple as a little canister that you simply take up, open in the bedroom, and empties itself (for a room of a given m³), then turn ventilation on low and go to sleep. The CO2 level would spike to the target level in a minute or so (presumably not a dangerous level, just one that makes you temporarily less smart and attentive) and then has some half life depending on your ventilation method. I'm not a doctor, I have no idea if it's smart to raise the level to 3, 4, idk how many thousand ppm are being proposed for this, even if it's for only 30 minutes or whatever. Just saying, I don't see obstacles to doing this safely if the action itself is safe.
- cobertos 4y ago
  I imagine you could make it more controlled/targetted using a canister, a mask (like CPAP machines), and a nozzle of specific radius too. Don't have to adjust for the whole room and don't have to bottle/release as much CO2
- kragen 4y ago
  a 3 × 4 × 3 bedroom contains 36 m³ of air weighing about 44 kg. 2000 ppm co₂ [this is by mass, right? not volume?] would be 88 g or 72 ℓ, which if all pooled on the floor would form a layer 6 mm deep, so probably no danger of direct suffocation carbonated drinks are carbonated to about 4 volumes so you could get 6 3-liter bottles of soda water and open them in your bedroom, releasing 72 ℓ of co₂ over the next, probably, half hour normal levels of ventilation for inhabited spaces are several air changes per hour, like 3–10, so this wouldn't raise your co₂ levels much unless the ventilation was super low i also don't know if this is a safe thing to do but i don't see any obvious dangers. you can't accidentally put twice as much co₂ in a bottle of soda water and iirc the idlh is like 30000 ppm
  - kragen 4y ago
    it's by volume: https://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth%27s_atmosphere https://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth%27s_at... 'on a molar basis' so it's 72 ℓ (3.0 mol) but not 88 g (2.0 mol). fortunately the rest of my calculations used the correct volume rather than the incorrect mass

by avian 4y ago

MobiusHorizons 4y ago

I think the general idea would be to have a device that typically reduces co2 level through ventilation, and just turn it off at night. That would let your normal breathing add the co2.

lucb1e 4y ago
I wouldn't like to take hours for my sleep aid to kick in, if I would need such a thing. Instead of the room, maybe a little device called blanket could be used, but I don't know how reliably people get out from under that if they get in the habit of associating under blanket = sleep = good, because it certainly wouldn't be good to be under that all night.
- cobertos 4y ago
  Might help to have it on a schedule, like a thermostat has, or maybe more advanced like Nest does. Then it kind of tapers you into a sleep schedule. Wouldn't work if coming back from a late night out though

dzhiurgis 4y ago

Normally your reflexes kick in when you start suffocating from co2. Nitrogen tho… I wonder if sleepiness is some sort of evolutionary reflex or actually caused by co2 in body.

lucb1e 4y ago

> a machine in my bedroom that is capable of raising the CO2 level. It doesn't have to be so complex. It could be as simple as a little canister that you simply take up, open in the bedroom, and empties itself (for a room of a given m³), then turn ventilation on low and go to sleep. The CO2 level would spike to the target level in a minute or so (presumably not a dangerous level, just one that makes you temporarily less smart and attentive) and then has some half life depending on your ventilation method. I'm not a doctor, I have no idea if it's smart to raise the level to 3, 4, idk how many thousand ppm are being proposed for this, even if it's for only 30 minutes or whatever. Just saying, I don't see obstacles to doing this safely if the action itself is safe.

cobertos 4y ago
I imagine you could make it more controlled/targetted using a canister, a mask (like CPAP machines), and a nozzle of specific radius too. Don't have to adjust for the whole room and don't have to bottle/release as much CO2
kragen 4y ago
a 3 × 4 × 3 bedroom contains 36 m³ of air weighing about 44 kg. 2000 ppm co₂ [this is by mass, right? not volume?] would be 88 g or 72 ℓ, which if all pooled on the floor would form a layer 6 mm deep, so probably no danger of direct suffocation carbonated drinks are carbonated to about 4 volumes so you could get 6 3-liter bottles of soda water and open them in your bedroom, releasing 72 ℓ of co₂ over the next, probably, half hour normal levels of ventilation for inhabited spaces are several air changes per hour, like 3–10, so this wouldn't raise your co₂ levels much unless the ventilation was super low i also don't know if this is a safe thing to do but i don't see any obvious dangers. you can't accidentally put twice as much co₂ in a bottle of soda water and iirc the idlh is like 30000 ppm
- kragen 4y ago
  it's by volume: https://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth%27s_atmosphere https://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth%27s_at... 'on a molar basis' so it's 72 ℓ (3.0 mol) but not 88 g (2.0 mol). fortunately the rest of my calculations used the correct volume rather than the incorrect mass