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Of the five controls tested the enclosing hood, the downdraught bench and the on-tip extraction system are the most effective. Each has advantages and disadvantages in various situations and careful consideration of the processes and tasks to be controlled is required to select between the three. The mobile capturing hood is capable of controlling exposure if used correctly, but like all capturing hoods requires repositioning if the source moves in order to keep it within the effective capturing zone. This means that the potential for worker misuse leading to exposure to solder fume is high, for this reason it should be considered secondary to the other forms of control in the opinion of the author.

CoSHH regulations require most LEV systems to be thoroughly tested at least once every 14 months. This applies to all oil mist, welding fume, smoke and dust extraction units that you currently have on site. This examination must be undertaken by a competent person and the tests and reports must conform to HSE standards. HSG258 provides the recommended procedures to achieve these statutory requirements.

According to the HSE, around 13,000 workers in the UK die each year from historic work-related exposure to airborne contaminants at work leading to lung disease and various cancers. These figures are estimated to be attributed to past exposure, primarily to chemical and dust at work.

How Welding Supplies Direct can help ? WE will carry out a thorough tests in line with COSHH Regulation 9 as detailed in HSE Guide HSG258 Our levels of service can be tailored to your Companies needs. However, most clients choose to take advantage of by combining servicing with the LEV testing. Read extra info at LEV Testing.

The employer must consider other control options and use them where appropriate (see HSE leaflets Working with substances hazardous to health1 and Clearing the air2) before applying LEV. In some circumstances, LEV may not be a reasonably practicable control as there may be many sources or extensive contaminant clouds that are too large for LEV alone to control. LEV suppliers provide goods (an LEV system) and may then act as a service provider. Designers interpret the requirements of the employer and advise on an effective LEV system which is capable of delivering the required control.