Buyers & Users of LEV

Guidance on Dust Control & Health Surveillance in Bakeries

This Federation of Bakers (FoB) guidance document provides practical advice on controlling flour dust and ingredient dust exposure within bakeries and food manufacturing environments. Flour dust is recognised as one of the leading causes of occupational asthma in the UK. …

BOHS – Online Welding Fume Control Selection Tool

The Breathe Freely Welding Fume Control Selector Tool is a free online decision-support tool developed to help managers, supervisors and employers identify appropriate welding fume control measures for common welding activities. The tool was developed by a working group comprising …

HSE Guide – HSG 258 – Controlling Airborne Contaminants at Work – A Guide to Local Exhaust Ventilation (LEV)

HSG258 provides practical guidance on how Local Exhaust Ventilation systems should be designed, commissioned, operated, maintained and examined. The document explains: How airborne contaminants are generated and controlled. The principles of effective contaminant capture. Good LEV design practice. Commissioning and …

Poultry House Ventilation

Although poultry house ventilation falls outside the traditional scope of Local Exhaust Ventilation (LEV), many of the same engineering principles apply. Effective poultry ventilation systems must control temperature, humidity, airborne dust, contaminants and airflow patterns while maintaining animal health and …

ACGIH Industrial Ventilation Manual of Recommended Practice for DESIGN: 31st Edition

The Global Reference Standard for LEV Design The ACGIH Industrial Ventilation Manual is widely regarded as the most influential and comprehensive technical reference available for the design of industrial ventilation and Local Exhaust Ventilation (LEV) systems. Published by the American …

New and Existing Engineering Control Systems – Local Exhaust Ventilation (HSE G406)

HSE Guidance Note G406 provides practical advice on the selection, installation, commissioning, maintenance and ongoing management of Local Exhaust Ventilation (LEV) systems used to control exposure to hazardous airborne contaminants. The guidance explains the fundamental principles of effective engineering controls …

BOHS “Good Practice Guide for Consultants”

This BOHS guide sets out good practice expectations for organisations providing occupational hygiene consultancy services, including sole traders, SMEs and larger consultancies. It covers competence, supervision, insurance, ethics, survey design, report writing, quality assurance and quality control.  The guide is …

Environment Agency – Technical Guide 12 – Fire Risk of Activated Carbon

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 …

HSE Video – LEV for Controlling Metal Working Fluid Mist during CNC

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 …

CIBSE Guide B2: Ventilation & Ductwork

CIBSE have published (in 2016) a series of Guides in their “B” Series of which “B2” is of direct interest to those dealing in Industrial Ventilation/LEV. Section 2.2 sets out the criteria for the design of ventilation systems, covering the …