This special rebreather is now offered for
sale. The breathing apparatus has the unique feature that the CO2
absorbing cartridges are of the oxygen candle type. This means that
the scrubber contains an oxygen-generating substance that not only
produces oxygen but also absorbs the moisture and the CO2. This
unique feature makes it possible to breathe without oxygen
cylinders, which means that the units can be kept ready for use for
a very long time. The M20 model has been used in numbers by the US
Navy for firefighting and staying in toxic atmospheres.
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