Lambertsen Amphibious Respiratory Unit

Etymology

History

Design

• Two large lengthways backpack mounted cylinders under a hard metal cover: the right cylinder is high pressure oxygen and the left is the cylindrical absorbent canister.
• Fullface mask with two small viewports like an old-type gasmask
• Two counterlungs, one on each shoulder.
• A breathing conduit of 4 lengths of large-bore corrugated breathing tubes in a loop: from the mask to one of the breathing bags to the canister to the other breathing bag to the mask.
• Its harness is a strong cloth jacket that enclosed the diver's chest.
• Mid front, a long zipped pocket: the diagrams do not show whether it was for kit or for diving weights.

• Davis Escape Set for use in emergency by submariners from 1927 onwards
• Siebe Gorman Salvus invented in the 1900s and first used in mines and by firemen
• The rebreathers used by the Italian Decima Flottiglia MAS frogmen in World War II
• Rebreathers used by British frogmen and divers in World War II and led to the 1950s Siebe Gorman CDBA used by the British