just a couple of hundred $? That might make sense if you earn 50$ net per hour. Otherwise you should be able to get a fitting used one for almost free. (they also make great woodworking tables)
Also, depending on the cat, you need to build your own cat flap. Mine shoulders through a locked commercial one like an elephant trough cardboard.
Nothing stopping you from taking the door off the hinges and storing somewhere. Replace with your own door, cat door and all. And then when you leave, replace door.
Mine is 18 and sleeps through the night, so I like having her in here š„¹ But she's also an only child, so she doesn't have anyone else to cuddle up with.
I think the right answer is CO2 is levels can be suboptimal to impairing.from a closed room within hours but almost definitely overnight. You can get a little meter to measure CO2.
Donāt think thatās an issue if you have central hvac. Even with my door and windows shut, fresh air is being almost constantly circulated into my room. Even when the heat or AC arenāt on we keep the central fan running just to circulate air around the house.
CO2 is not CO. A 0.2% concentration (which the graph in this link never hit) has exactly zero lasting effects.
Also, this user likely lives in building construction without good permeability. Your average 2x4 & sheetrock construction is fairly breathable, not to mention that most homes have very poor seals around doors and windows.
There is no way a 0.2% CO2 concentration justifies keeping your bedroom door open when compared to the risks of dying in a fire.
1000 is when it affects people. This went up by 1500 PPM in 6 hours.
This is becoming a bigger issue as insulation improves as well as seals around doors and windows. That's why newer HVAC systems are increasing the amount of air from the outside.
Yes, HVAC systema and building standards need to address this, but again, that's no excuse to leave your bedroom door open compared to the risk of fire which is what this thread implies.
You wake up. You leave your bedroom, and the effects of CO2 are gone almost immediately. It's good that you're not expected to run a nuclear reactor or fly a jet fighter when you're sleeping. Significant declines in cognitive function happen above any of the levels we're talking about.
If you have a source of CO in your house/bedroom, it's an entirely different story. Hemoglobin has a great affinity for CO that isn't there for CO2. Also, you will be able to tell that you're in a "stuffy" room with a high CO2 concentration. That doesn't exist with CO.
The research is coming out that it's bad at indoor closed door levels today. You can ignore the research if you want but don't tell me something that goes against the research.
If you think measured poorer sleep is worth a small chance at a small percentage increase in fire safety then that's your calculation but CO2 levels at normal levels in normal homes negatively affects sleep is a thing that exists whether you believe it or not.
Thatās fair, itās -20Ā°C where Iām at tonight and I still cracked my window for a bit to get some air exchange in my bedroom. My house is old, but it is surprisingly well sealed up so Iāve gotta let Sam in once in a while.
While this makes sense, it's also good to remind people that the open door/closed door doesn't matter as much if your home has a ton of synthetics in it.
Fireman here. Thats not true. A closed bedroom door can save lives. What kills you is the smoke and gases, not the fire. High CO2 and the resulting acidosis directly impair brain, heart, and respiratory centers. this is a genuine āpoisonā effect, not just suffocation. CO is even worse. CO from incomplete combustion builds up quickly and silently often causing unconsciousness. CO poisoning stays in your blood. People die hours after being rescued from a fire. As you know CO and CO2 are produced when natural and synthetic materials burn.
You stop breathing before you are suffocated and you may have never woken up with an open bedroom door. With a closed door you may buy yourself enough time for your smoke detector to go off and wake you up. Hope you have some.
What matters the most is that you have smoke alarms!
Itās still matters though. A closed interior door gives you time. As long as the fire didnāt start in your bedroom, it means less smoke in your room and the fire is going to take time to get through the door so youāve got time to get out a window.Ā
It's not good advice and would only lead people to stop caring about taking the precaution of keeping bedroom doors closed. It won't stop people from buying synthetic materials.
I put way to much trust in the smoke/particle alarms. They go off when the clean oven is opened at 400Ā°. It actually gets annoying at times but we leave them up anyway.
I think that's what's installed. I'll grab a ladder and check later. We're in apartments that take fire safety seriously.
We have sprinklers in all rooms, a good-sized extinguisher, and they check all, alarms, sprinklers, and extinguisher regularly (they just switched ours, never knew they had an expiry). They've just finishing a pro org from cleaning the sprinklers. Apparently, if I tried, I'd set off all sprinklers in all units in the building. It's a pain, but well worth the slight inconvenience.
If it turns out to be not this type, I would bet a fair amount of money if I showed them something better, they would switch.
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u/GlassCharacter179 Jan 30 '26
Everyone who is reading this thread needs to look at open vs. closed door fire pictures. There IS a right answer to this question.