Page 5
Expressweld MasterMIG 250CT
GASES and FUMES can be dangerous.
When welding with electrodes which require special ventilation such as stainless or hard
facing or on lead or cadmium plated steel and other metals or coatings which produce
highly toxic fumes, keep exposure as low as possible and keep the exposure level under
“Minimum Limit Values” using local exhaust or mechanical ventilation. In confined spaces
or in some circumstances, a respirator may be required even outdoors. Additional
precautions are also required when welding on galvanized steel.
Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing,
cleaning or spraying operations. The heat and rays of the arc can react with solvent
vapors to form a highly toxic gas, and other irritating products.
Welding may cause fumes and gases that are injurious to health. Always enough
ventilation should be used or fumes and gases should be exhausted from breathing
place.
Generally in welding applications; temporary effects for short time can be seen such as
face and skin burning, dizziness, nausea and fever based on exposure period and
amount of fume. Long time fume exposure may cause iron loading and dysfunctions in
lungs. Bronchitis and pulmonary fibrosis are primary effects occurred.
Some electrodes may include alloys that entail special ventilation. Label of these
products that entails special ventilation should not be ignored and gProduct Safety
Information Form h reports should be read carefully. When welding on this kind of
materials it may be necessary to use gas mask.
Keeping your head out of fume clouds is the easiest way for protection against toxic fumes
and gases.
Avoid breathing these fumes and gases, air circulation or mechanical ventilation
equipments should be used and if the ventilation is not enough gas mask should be used.
