| ShM 41 Shlem Maska ( Hood Mask ) Military mask about 1950 | |
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This
mask is the first ShM model with moulded inside Tissot vents
The facepiece is a semi flat / shaped moulding design, made of light grey rubber. It covers all the head, including ears. The stamped and welded frontpiece casing includes one single exhalation valve. As this single valve produces some leakage, to avoid this leakage, a special device has been designed to improve the airproofing of the mask. |
| ShM 41 M Shlem Maska ( Hood Mask ) Military mask about 1950 | |
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The ShM 41 M mask is an improvement of the ShM 41 by
adding a second exhalation valve on a new design front piece.
The breathing hoses must be of rough rubber oc stokinet covered. Several models of filters and carrying bags have been used This rubber moulded device includes one second valve, a hole allows the breathing hose to pass through the device bottom. The skirt of the device is mounted on the frontpiece casing |
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