The Peaceful Pill eHandbook The Optimal Gas Flow Rate
A peaceful hypoxic death with an inert gas and an Exit Bag, depends upon an ‘optimal gas flow’. The ‘optimal flow’ means one that will be sufficient to flush away exhaled carbon dioxide so that this gas does not accumulate within the bag. The gas flow should also be slow enough so it is not uncomfortable or noisy, and slow enough for a full cylinder to last >15 minutes.
To determine the optimal flow, Exit has carried out experiments where different flow rates of air were admitted to a bag over a test subject’s head. The level of carbon dioxide within the bag was monitored using an RKI sampling gas detector.
The results for an 80 kg male taken over a 5-minute period for two gas flow rates (5 & 15 liters/ min) are shown.
For 15 liters/ min gas flow, the level of carbon dioxide in the bag does not rise appreciably over the 5 minute period. With the low flow rate, the level of carbon dioxide approached 5%. This was enough to make the subject uncomfortable and alarmed. A flow rate of ~15 liters/ min was seen as optimal.
NOTE: This test using air supplied to an Exit Bag over estimates the gas flow needed to remove the carbon dioxide. Where the gas supply to the bag has no oxygen, dioxide production will be less and a gas flow <15 liter/minute will suffice.