8611303
PROCUT45 PLASMA CUTTER
V1.1
12
For technical questions call 1-800-665-8685
1.1 If ventilation in the work area is poor, use an approved
air-supplied respirator. All the people in the work area
must also have air-supplied respirators.
1.2 Oxygen displacement can occur in confined areas when
the shielding gas fills the area and pushes out air.
1.2.1 Argon, Propane and Carbon Dioxide are heavier
than air and will fill a confined space from the
bottom up.
1.2.2 Helium and Natural Gas are lighter than air and
will fill a confined space from the top down.
2. Avoid positions that allow welding fumes to reach your
face. Always attempt to weld ‘upwind’ of the workpiece
with the airflow across the face of the welder. Airflow from
behind may create a low pressure area in front of the
welder and draw the fumes to the person.
3. Ventilate the work area to remove welding fumes and
gases. The fumes and gases should be drawn away from
the user.
3.1 Ventilation should be enough to disperse fumes,
but not enough to disturb the shielding gas or flame
during welding.
3.2 Ventilation exhaust shall be directed to a non-work area
to avoid exposing other people to potential toxic or
dangerous fumes.
3.3 Air removed from the work area by the ventilation system
must be replenished with fresh air to avoid oxygen
starvation or a build-up of fumes or gases. Only use air to
provide ventilation. Any other combination of gases may
be explosive or toxic to people in the work area.
3.4 Ventilation methods that remove gas and fumes from
the welding point before they reach the welder’s face
should be given preference.
