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puffs of thick blue smoke against a black background
Welding fumes can cause serious health problems for workers, if inhaled Prolonged exposure to welding fumes can cause lung cancer.
Lots of dirty used cigarette butts in an ashtray on a white background. Glass ashtray. Health, smoking, unhealth, Lung cancer. View from above. Copy text space.
smoke overlay effect. fog overlay effect. atmosphere overlay effect. Isolated black background. Misty fog effect, texture overlays. fume overlay. vapor overlays. fog background texture. steam, smoky.
Close-up Iron welding close-up, sparks do not wear gloves. Welding sparks and fumes It can be dangerous to health. Welding of steel fireworks.

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