Roger
I Liked Ike
- May 11, 2019
- 972
My thoughts:
This thing keeps you breathing in the same air that you have just exhaled in a closed loop. At one end are your lungs, at the other end is a sealed container to contain the exhaled air. The mask and sealed container are connected by tubes which have filter containers containing sodium hydroxide.
As you breathe in and out, the same air keeps going round and round, but with the level of oxygen reducing with each breath. The suffocation response which is normally triggered by the presence of carbon dioxide is overcome by passing the exhaled breath through the sodium hydroxide filters - they absorb the CO2. So there is no need to have an elasticated hood which (you hope) will allow expelled CO2 to escape.
Exhaled Nitrogen and Oxygen pass through the filter but the oxygen proportion declines with each breath as the body utilises it, and the nitrogen proportion increases until such time as you pass out from hypoxia.
The only chemical needed is sodium hydroxide, aka caustic soda, or lye. Obviously you have to have enough to absorb the necessary amount of CO2.
If it is the case that the mask may come loose during collapse and (maybe) convulsions, that could be a problem which needs addressing. A full face mask like a service respirator may be a better bet. Certainly, asking for assistance to keep the mask in place puts any assistant at risk of prosecution for assisting.
As to the legality of the device - well, caustic soda is a widely available substance. Maybe supplying the device could be seen as "assisting" - I don't know.
This thing keeps you breathing in the same air that you have just exhaled in a closed loop. At one end are your lungs, at the other end is a sealed container to contain the exhaled air. The mask and sealed container are connected by tubes which have filter containers containing sodium hydroxide.
As you breathe in and out, the same air keeps going round and round, but with the level of oxygen reducing with each breath. The suffocation response which is normally triggered by the presence of carbon dioxide is overcome by passing the exhaled breath through the sodium hydroxide filters - they absorb the CO2. So there is no need to have an elasticated hood which (you hope) will allow expelled CO2 to escape.
Exhaled Nitrogen and Oxygen pass through the filter but the oxygen proportion declines with each breath as the body utilises it, and the nitrogen proportion increases until such time as you pass out from hypoxia.
The only chemical needed is sodium hydroxide, aka caustic soda, or lye. Obviously you have to have enough to absorb the necessary amount of CO2.
If it is the case that the mask may come loose during collapse and (maybe) convulsions, that could be a problem which needs addressing. A full face mask like a service respirator may be a better bet. Certainly, asking for assistance to keep the mask in place puts any assistant at risk of prosecution for assisting.
As to the legality of the device - well, caustic soda is a widely available substance. Maybe supplying the device could be seen as "assisting" - I don't know.