JSP ANZ CATALOGUE - Flipbook - Page 22
TYPHOON™ VALVE
EXHALATION VALVE BENEFITS
Exhalation valves provide greater comfort to wearers, with lower CO2 levels and reduced heat and
moisture build-up. Used safely, exhalation valves can help wearers retain energy and in turn improve
morale. In situations with high work rates, where pulmonary stress can occur, and in hot environments,
exhalation valves can be vital for safe use of RPE.
HOW DO EXHALATION VALVES WORK?
INHALATION: Air is inhaled through the filters.
The diaphragm in the exhalation valve is closed to
prevent inhalation through the valve.
EXHALATION: When the wearer exhales, the
diaphragm opens to allow air to pass through. This
reduces the amount of air flowing back through the
filter media, directing the warm and moist exhaled
air out through the valve.
JSP AUSTRALIA/ NEW ZEALAND
CO2
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REDUCED CO2
All JSP respirators are tested for CO2
content to ensure it remains below a
safe level of 1% volume. Exhalation
valves work more efficiently, reducing
CO2 even further to avoid feelings of
drowsiness or fatigue.
REDUCED HEAT
Exhalation valves help to reduce heat
build-up within the mask for more
comfortable wear. This is especially
important in warm environments and
climates, and at high work rates, when a
mask can feel claustrophobic.
REDUCED MOISTURE
The moisture in exhaled air can clog the
filter media, reducing the filtration ability
of the mask. An exhalation valve directs
exhaled air out to prevent a build-up in
the filter material in order to improve
performance and filter life.
