The
RGU-FM is an East German oxygen rebreather of world-renown
East German quality. It is a uncertain mass flow SCR.
Excellent description of the rig is at Diver
Dave's Tear-down pages. Check it out. Golem Rebreathers
acquired this rig to conduct currently classified experiments
and modificatons.
RGU-FM was tested
with the original scrubber material (date of manufacture
1979) and original oxygen fill (1975) at EDL/CzN fresh-water
test facility in northern Florida, formerly known as
Ginnie Springs.