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HSS

This early type of breather set serves to supply the user with oxygen when he is an a deficient atmosphere due to fires, explosions, or high concentrations of agents in confin-ed quarters.

The inside of the canvas flap which fits around the body has the following marking printed on the backside: Heeres-Sauerstoff-Schutzgerät.

This set dates back to 1916 and is no longer manufactured. It is fastened to a canvas square metal plate which is fitted with canvas flaps, bands and straps for carrying the apparatus in front of the body. It consists of the following parts:

The valve enclosure contains the inhalation and exhalation tubes which in turn con-tain the valves thereby enabling the use of only one connecting hose to the facepiece or mouthpiece. When using the mouthpiece, a noseclip is fastened on the nose to close the nostrils.

The hose can be attached to the standard facepiece in which the valves are removed and the outlet valve opening covered with a screw cap.

The oxygen supply is enough for 70 minutes medium work; the equipment also inclu-des a hypodermic syringe for injecting lobelin, in case of filling. The breathing bag hangs below the sodium hydroxide cartridge.

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