3S Full Face Mask – Negative Pressure
5
Description
GB
2
Description
The face blank is made of a special soft rubber compound and assures a snug, comfortable fit and a
tight seal. The face blank is also available in yellow silicone. Some versions of the mask are also avail-
able in small size.
The inhalation air flows from the connector of the mask past the inhalation valve to the inside of the
lens [thus keeping the lens largely fog-free] and then through the check valves into the nose cup.
The exhalation air passes through the exhalation valve directly to the ambient air.
Fig. 1
Overview full face mask
1
Face blank
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Connector with inhalation valve
2
Head strap
6
Exhalation valve
3
Buckle
7
Carrying strap
4
Lens
1
2
3
4
5
6
7
