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Welding and local exhaust ventilation

This fact sheet is for ‘persons conducting a business or undertaking’ (PCBUs) that carry out welding work. Local exhaust ventilation (LEV) is an engineering control commonly used to control the risks to workers’ health from welding fumes. When designed, used and maintained properly it is an effective control measure.

This fact sheet provides information on some of the health risks associated with welding, LEV systems used for welding and their limitations.

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Last updated 8 September 2016


On Monday 4 April 2016, the New Health and Safety at Work Act 2015 (HSWA) came into effect.

HSWA repeals the Health and Safety in Employment Act 1992, with immediate effect.

All references to the 1992 Act on this website and within our guidance will be progressively removed.