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Hypoxic Death & the Exit Bag Coronavirus Protection Helmets
A third means of creating a no-oxygen, low carbon dioxide environment for a peaceful ‘happy hypoxic’ death makes use of some of the new helmets (PPEs Personal Protrctive Equipment) that have been developed in response to the coronavirus pandemic.
Coronavirus protection helmets are marketed by companies such as Vyzar and MicroClimate Air in the US. They are designed to protect the wearer from coronavirus contamination by drawing in filtered air. Standard industrial protective safety headgear by 3M which is fed by filtered positive pressure air operates on the same principle.
In each of these cases, it should be possible to replace the filtered air supply with pure nitrogen from a compressed gas source. The helmets act as a solid head capsule that replaces the plastic Exit bag. The positive pressure feed of nitrogen prevents any oxygen contamination within the helmet gas from the surrounding environment. This will also keep carbon dioxide levels to a minimum.
In the case of a helmet, there is no need to pre-fill the space. With air feed operating, the wearer can hyperventilate for 1 to 2 mins, and then switch the helmet gas supply to nitrogen. The flow rate should be set to ~25 liters/ minute or greater to rapidly decrease in oxygen occurs within the helmet. Unlike the Exit bag, with a helmet there will be no immediate loss of consciousness . With a helmet, the period of possible hypoxic disorientation before loss of consciousness may be prolonged for up to a minute.