EN
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• When there is an increase in the oxygen content or
when the concentration exceeds 23.5%. The increase in
the oxygen content can be very dangerous. The limit is
not definite, but even a moderate increase in the
content increases the risk. An increase in the oxygen
content means that sparks are a greater fire hazard, and
that a fire would be more intense.
• With concentration higher than 0.1% of harmful gas.
• In areas where there is a risk of explosion.
• In the vicinity of naked flame, molten metal or splashing
of molten metal, or other source of heat that risks
igniting the active carbon in the filter, which can
produce a harmful content of CO or CO2.
• The oxygen content in the inhaled air must not be less
than 19%.
• Never enter unventilated tanks, pits, channels or small
spaces with filtered breathing protection. In such cases a
breathing apparatus must be used.
• Filters and filter sets heavier than 300 g must only be
used with a half face mask.
CHECK
• Check all plastic and rubber parts for for cracks and
fatigue damage.
• Check that the breathing filter is correctly fitted and in
good condition. This type of filter cartridge does not
require any maintenance.
