Its working parts are in a dark-blue streamlined rounded shell. It can be worn on the front or on the back. It is rated as duration on a filling: oxygen 4 hours or more, soda-lime 7 hours at 21.1° C (70°F).
It is 48 cm = 19.2 inches high, 30 cm = 12 inches wide, 19 cm = 7.6 inches thick. It weighs 14.2kg = 31.3 pounds out of water
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