I have an area within my home in mind for a sanctuary in a worst case scenario, and I have been wondering how long my air will last with me, my wife, my three kids and my dog.

I would hate to have the perfect survival plan only to 'wake up dead' two days in, from CO2 poisoning.

Is there a scale or something for oxygen consumption?

Wiki link

If I am growing food in my sanctuary I need to allow for more CO2 release.

Restricting movement, exercise and even speech and breathing patterns may be a factor.

Does anyone know of a portable or battery operated device to warn of unsafe oxygen levels?

Can anyone think of anything else to consider on the oxygen consumption subject?

S_G

Nobody has picked up on my question here over the past few months.

I was wondering if there is anyone here who could give me some advice?

Regards S_G

Aprox 1 minute for every foot squared of total space.


This is a rough estimate but close enough.

reply to post by xSMOKING_GUNx

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have you considered scrubbers? quite easy to make. watch apollo 13, they had a situation where they were running out of air and cobbled together a scrubber to remove the co2. i believe fullers earth (charcoal) is the ingerdient to remove said gas. you could also rig up a battery operated filter for an external supply.