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?



Carbon dioxide is produced by all animals, plants, fungi and microorganisms during respiration and is used by plants during photosynthesis. This is to make sugars which may either be consumed again in respiration or used as the raw material for plant growth. It is, therefore, a major component of the carbon cycle.

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