Monitoring Exposure to Welding Fume This BOHS technical guidance document provides practical advice on assessing and monitoring worker exposure to welding fume. It explains the hazards associated with welding operations, the contaminants commonly present within welding fume and the methodologies …
BS EN 689:2018 – Measuring Exposure by Inhalation to Chemical Agents BS EN 689:2018 is the principal European standard for assessing occupational exposure to airborne hazardous substances. It provides a structured methodology for determining whether worker exposure is adequately controlled …
Activated carbon is widely used in industrial air pollution control systems, odour abatement plant, VOC treatment systems, biogas upgrading facilities and LEV filtration systems. Under normal operating conditions it is generally considered a safe and effective filtration medium. However, under …
Fletcher’s Equations for Captor Hoods – Free Excel Spreadsheet and Mobile App Fletcher’s Equations are the methodology recommended by HSE for calculating captor hood performance and effective captor distances. They are widely used by LEV designers, commissioning engineers and TExT …
The IACS Non-Sparking Fan Standard (UR F29) provides guidance on fan construction and material selection where explosive atmospheres may be present. It is frequently referenced when specifying LEV systems for DSEAR-regulated environments. The document outlines acceptable arrangements for preventing frictional …
This Institution of Mechanical Engineers (IMechE) guide provides practical engineering guidance on applying the principle of reducing risks to As Low As Reasonably Practicable (ALARP). The report explains how engineers and duty holders can demonstrate that safety risks have been …
This post and its attachments are free for everyone. If you know any service engineers working with LEV systems, please share this. We want all service engineers to understand the risks they face—and the level of protection they should expect …
This HSE training video demonstrates how Local Exhaust Ventilation (LEV) can be used to control worker exposure to Metal Working Fluid (MWF) mist generated during CNC machining operations. MWF mist can cause occupational asthma, hypersensitivity pneumonitis, dermatitis and other respiratory …
This HSE guidance provides ten practical noise control techniques that can be applied across a wide range of industries to reduce workplace noise exposure and minimise the risk of Noise-Induced Hearing Loss (NIHL). The guidance focuses on simple engineering and …
LEVCentral Expert Commentary One of the most common weaknesses seen in LEV reports is not the quality of the technical assessment but the quality of communication. Engineers often understand exactly why a hood arrangement is ineffective, yet the client may …
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