LEV Installation & Management

HSE Guide A9 – “Drilling Holes in Asbestos Cement”

This HSE Guidance Sheet A9, published in 2017 describes good practice when you need to drill holes in asbestos cement, bitumen products, floor tiles or other highlybonded materials containing asbestos. Download PDF Copy  

Video – “How to Measure Captor Hood Control Distance?”

Latest OXYL8 LEV training video (Sept 17) on YouTube discusses the ways in which we can approach the verification of the Control Distance of a particular Captor Hood. More usually we use smoke release on the centreline out from the …

Video – “Captor Hoods – Basic Principles and Design Theory/Equations”

Latest OXYL8 LEV training video (Aug 17) on YouTube which provides an introduction to the basic operational principles of Captor Hoods and an outline of the mathematical theory for Captors. Fletchers Nomogram equations are discussed and reference made to an …

HSE Guide P40: Wide-Format Printing with UV-Curable Inks (Ozone)

This HSE Guidance Leaflet, which was published in 2005 describes good practice for digital (ink-jet) printing on machines up to 3.2 metres wide, using UV-curable inks. It advises the use LEV (extraction) for any Ozone produced by the process. Download …

HSE Guide P35 – Printing with UV-Curable Inks (Ozone)

A Guide produced by HSE in 2005 which describes good practice for printing using UV-curable inks. It discusses (briefly) that LEV should be used to remove any ozone produced by the process. Guide P35 pdf

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

Second Edition, Published by HSE 2011 This is HSE’s current guide on LEV and related topics.  Here you will find recommended Duct Velocities, Captor Velocities, Face Velocities, and other design criteria. The various types of hoods, filters, fans and discharges …

Where Can I Source LEV Labels?

Have you ever required small run batches of specific LEV related labels? OXYL8 Ltd can now offer both standard and bespoke labels through their subsidiary website LEVShop – Labels (bespoke labels can include Logo, tel number, website etc) at a …

Video – “What Happens When a Centrifugal Fan Runs in Reverse”?

Latest OXYL8 LEV training video on YouTube which shows what happens when a Centrifugal fan is incorrectly wired (ie phases the wrong way round) – a situation which is all too common (estimated that approx 7% are incorrectly wired). The …

Emission and Exposure Control-Related Ventilation Regulations – USA

This neat summary document, produced in 2015 by the well-respected Industrial Ventilation specialist Dr Jeff Burton summarises the USA standards and requirements for Ventilation systems used to control personal exposures. A copy of this short document can be downloaded here:- 10-USA …

CoSHH Essentials – Easy Steps to Control Chemicals

HSE Guide (looks like published Sept 2009) dealing with the foundations and “Technical Basis for the CoSHH Essentials: Easy Steps to Control Chemicals”. If you are familiar with Benchmarking (as per HSG258) then this document will provide you with so …