Dräger X-plore 3300, Instructions For Use Manual

Page: 159 / 172

Use
X-plore 3000 159
3.3 Leak tests
3.3.1 Negative pressure test
 Seal both respiratory filters with your hands or an aid (e.g. a piece
of cardboard) and breathe in until a negative pressure is created
(refer to figure H). Hold your breath for a moment.
The negative pressure should be maintained. If not, adjust the
harness.
3.3.2 Positive pressure test
 Seal the exhalation valve of the half mask and breathe out
forcefully (refer to figure J).
The half mask must NOT lift off your face. If the exhaled air
dissipates between face and mask body, adjust the harness.
WARNING
The half mask may not fit correctly over facial hair or features
– danger of poisoning!
The half mask must fit tightly and the respiratory filters must be
fitted before entering the contaminated area.
NOTICE
The pad cap of pad-particle filters does not provide an airtight
seal for the gas filter and/or the pad plate. Thus, it is necessary
to carry out the positive pressure test for pad-particle filters.
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