Aviat Space Envir Md
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Aviat Space Envir Md · Jun 2009
Clinical TrialPersonal CO2 scrubbing device for use in a disabled submarine.
In the sunken submarine, a breakdown in the power supply can disrupt the provision of fresh air and the absorption of CO2. A personal device based on a breathing mask and the soda lime canisters used in the submarine is proposed for CO2 absorption. ⋯ The personal carbon dioxide absorption device lowered the ambient CO2 level over a period of 24 h, and could maintain this level for a further 24 h. Keeping CO2 at a low level has an advantage over the peaks of 3% obtained with absorbent LiOH curtains, where elevated pressure and increased P(CO2) may have an adverse effect on the survivors. Some of the crew can remain active without using the device, while the others do the job of clearing the carbon dioxide for the whole crew.