LEV Central

The Knowledge Base for LEV

HSE CoSHH Welding Guidance Leaflets

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Welding Fume

HSE’s CoSHH Essentials section on Welding Fume has a list of 23 topic Guidance Notes – all of which can be accessed by following the URL link below. Some of the Ventilation-specific guidance notes are listed below for direct download:- WL0 “Advice for Managers” WL0 WL1 “Workshop Ventilation”  WL1 WL2 “Fixed Ventilation”  WL2 WL3 “Fixed…

HSE Dyes and dyeing

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This section of the HSE website evaluates typical exposure from Dyes and Dyeing processes.  It covers a variety of controls (including LEV) as solutions in lowering exposure. Exposure to dyes Dyes used in textile finishing have many different, complex chemical structures and there are many products in commercial use.  Uncontrolled exposure to some hazardous…

HSL On-tool controls to reduce exposure to respirable dusts in the construction industry

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Taken from the first page of this report: Many processes in the construction industry create large quantities of dust; often materials used in construction contain silica. If the dust emissions from these processes are not controlled they can cause exposures that exceed UK workplace exposure limits and consequently lead to occupational diseases such as cancer,…

HSE Cadmium in Silver Soldering or brazing (EIS31)

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This HSE guidance is aimed at employers, managers and workers who use or plan to use cadmium-containing products and materials.  It is also relevant to those who may be working on materials that may include cadmium-containing solders. To download this Engineering Information Sheet click here to visit the HSE website.

SEA/HSE Hexavalent chromium in electroplating: Prevention and Control of Chromic Acid Mist

Published on About SEA: As a Trade Association, The SEA endeavour to be the voice that represents our members in areas surrounding legislation and government that affect our ability to produce and compete successfully in an increasingly competitive global market. We are very proud of the contribution that the UK treatment industries have made to current technology employed…

Welding Fume – Respiratory Fact Sheet

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This is a basic fact sheet on Welding fume and the possible controls that could be used. Welding Fume respiratory risk fact sheet Welding is major part of fabrication.  It includes using a molten filler to bond the material together and when cool, forms a strong joint. There are lots of different welding techniques but…

HSE EH38 Ozone Health hazards and control measures

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This guidance is primarily aimed at employers and managers of people exposed to ozone in the course of their work. Other groups, such as employees and health and safety professionals, will also find the guidance useful. It draws attention to the potential ill health which exposure to ozone can cause and indicates potential sources of…


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The HSE – COSHH essentials in quarries: Foundries: COSHH Essentials sets out basic advice on what to do to control exposure to hazardous substances in the workplace. It takes the form of straightforward advice in ‘factsheets’ called ‘control guidance sheets’. There are two types of sheets, industry-specific ‘direct advice sheets’ and ‘generic control guidance sheets’….

Video USA Welding Fume Exposures (Real Time)

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This video demonstrates the effectiveness of local exhaust ventilation controls in reducing welding fume exposure through the use of video exposure monitoring.  The video shows three basic welding scenarios and using real-time fume exposure monitoring equipment shows the effects of no LEV, using LEV and natural air currents etc. Produced by the University of Washington…