Comment on Half a pound of this powder can remove as much CO2 from the air as a treeparentComments−telgareith1yThat assumes you're breathing something besides pure oxygen.And the "device" is called a 'rebreather.' https://en.m.wikipedia.org/wiki/Rebreather
Comments
That assumes you're breathing something besides pure oxygen.
And the "device" is called a 'rebreather.' https://en.m.wikipedia.org/wiki/Rebreather